v7.4.4

GitHub actions are too slow for this, it takes more than 15 mins.
Publishing to npm from GH actions is a cool idea, but it's a lot faster to
publish locally.

Also, I think that since when I introduced this action I
always killed it; either because it was to slow or because I had to
make some manual tweaks during the release.

.circleci/config.yml

@@ -34,7 +34,7 @@ jobs:
   build:
     working_directory: ~/babel
     docker:
-      - image: circleci/node:10
+      - image: circleci/node:12
     steps:
       - checkout
       - restore-cache: *restore-yarn-cache
@@ -42,7 +42,7 @@ jobs:
       - run: yarn --version
       - run: make test-ci-coverage
       # Builds babel-standalone with the regular Babel config
-      - run: make build
+      - run: IS_PUBLISH=true make build
       # test-ci-coverage doesn't test babel-standalone, as trying to gather coverage
       # data for a JS file that's several megabytes large is bound to fail. Here,
       # we just run the babel-standalone test separately.

.editorconfig

@@ -10,5 +10,8 @@ end_of_line = lf
 indent_style = space
 indent_size = 2
 
+[Makefile]
+indent_style = tab
+
 [*.{md,markdown}]
 trim_trailing_whitespace = false

.eslintignore

@@ -5,8 +5,8 @@ package.json
 lerna.json
 packages/babel-runtime
 !packages/babel-plugin-transform-runtime/scripts
-!packages/babel-runtime-corejs2/core-js.js
 packages/babel-runtime-corejs2
+packages/babel-runtime-corejs3
 packages/*/node_modules
 packages/*/lib
 packages/*/dist

.eslintrc.json

@@ -1,11 +1,9 @@
 {
   "root": true,
+  "plugins": ["prettier", "@babel/development", "import"],
   "extends": "babel",
-  "plugins": ["prettier"],
   "rules": {
-    "curly": ["error", "multi-line"],
-    "prettier/prettier": "error",
-    "no-case-declarations": "error"
+    "prettier/prettier": "error"
   },
   "env": {
     "node": true
@@ -14,8 +12,10 @@
     {
       "files": ["packages/*/src/**/*.js", "codemods/*/src/**/*.js"],
       "rules": {
-        "no-undefined-identifier": "error",
-        "no-deprecated-clone": "error"
+        "@babel/development/no-undefined-identifier": "error",
+        "@babel/development/no-deprecated-clone": "error",
+        "import/no-extraneous-dependencies": "error",
+        "guard-for-in": "error"
       }
     },
     {
@@ -28,6 +28,14 @@
       "env": {
         "jest": true
       }
+    },
+    {
+      "files": ["packages/babel-plugin-*/src/index.js"],
+      "excludedFiles": ["packages/babel-plugin-transform-regenerator/**/*.js"],
+      "rules": {
+        "@babel/development/plugin-name": "error",
+        "eqeqeq": ["error", "always", { "null": "ignore" }]
+      }
     }
   ]
 }

.flowconfig

@@ -1,10 +1,10 @@
 [ignore]
-.*/build/.*
-.*/packages/.*/lib
-.*/packages/.*/test
-.*/codemods/.*/lib
-.*/codemods/.*/test
-.*/node_modules/conventional-changelog-core/
+<PROJECT_ROOT>/build/.*
+<PROJECT_ROOT>/packages/.*/lib
+<PROJECT_ROOT>/packages/.*/test
+<PROJECT_ROOT>/codemods/.*/lib
+<PROJECT_ROOT>/codemods/.*/test
+<PROJECT_ROOT>/node_modules/module-deps/
 
 [include]
 packages/*/src

.github/ISSUE_TEMPLATE/Bug_report.md

@@ -1,6 +1,9 @@
 ---
-name: 🐛 Bug Report
-about: If something isn't working as expected 🤔.
+name: "\U0001F41B Bug Report"
+about: "If something isn't working as expected \U0001F914."
+title: ''
+labels: 'i: bug, i: needs triage'
+assignees: ''
 
 ---
 
@@ -31,7 +34,7 @@ A clear and concise description of what you expected to happen (or code).
 - Babel version(s): [e.g. v6.0.0, v7.0.0-beta.34]
 - Node/npm version: [e.g. Node 8/npm 5]
 - OS: [e.g. OSX 10.13.4, Windows 10]
-- Monorepo [e.g. yes/no/Lerna]
+- Monorepo: [e.g. yes/no/Lerna]
 - How you are using Babel: [e.g. `cli`, `register`, `loader`]
 
 **Possible Solution**

.github/ISSUE_TEMPLATE/Feature_request.md

@@ -1,6 +1,9 @@
 ---
-name: 🚀 Feature Request
-about: I have a suggestion (and may want to implement it 🙂)!
+name: "\U0001F680 Feature Request"
+about: "I have a suggestion (and may want to implement it \U0001F642)!"
+title: ''
+labels: 'i: enhancement, i: needs triage'
+assignees: ''
 
 ---
 

.github/ISSUE_TEMPLATE/Regression-v7.md

@@ -1,12 +1,16 @@
 ---
-name: 💥 v7 Regression
-about: Report an unexpected behavior in v7 from v6 (Check the upgrade guide first ✌️)
+name: "\U0001F4A5 v7 Regression"
+about: Report an unexpected behavior in v7 from v6 (Check the upgrade guide first
+  ✌️)
+title: ''
+labels: 'i: bug, 7.x: regression, i: needs triage'
+assignees: ''
 
 ---
 
 # v7 Regression
 
-> First check out: https://new.babeljs.io/docs/en/next/v7-migration.html
+> First check out: https://babeljs.io/docs/en/v7-migration
 > Also a partial upgrade tool: https://github.com/babel/babel-upgrade
 
 **Potential Commit/PR that introduced the regression**

.github/ISSUE_TEMPLATE/Support_question.md

@@ -1,6 +1,9 @@
 ---
-name: 🤗 Support Question
-about: If you have a question 💬, please check out our Slack or StackOverflow!
+name: "\U0001F917 Support Question"
+about: "If you have a question \U0001F4AC, please check out our Slack or StackOverflow!"
+title: ''
+labels: 'i: question, i: needs triage'
+assignees: ''
 
 ---
 

.github/ISSUE_TEMPLATE/Support_us.md

@@ -1,6 +1,10 @@
 ---
-name: 🤝 Support us on Babel
-about: If you would like to support our efforts in maintaining this community-driven project 🙌!
+name: "\U0001F91D Support us on Babel"
+about: "If you would like to support our efforts in maintaining this community-driven
+  project \U0001F64C!"
+title: ''
+labels: ''
+assignees: ''
 
 ---
 

.github/actions/create-release-tag/Dockerfile

@@ -0,0 +1,16 @@
+FROM debian:stable-slim
+
+LABEL "name"="create-release-tag"
+LABEL "version"="0.0.1"
+
+LABEL "com.github.actions.name"="Create release tag"
+LABEL "com.github.actions.description"="Creates a release tag equal to the last commit message"
+LABEL "com.github.actions.icon"="tag"
+LABEL "com.github.actions.color"="gray-dark"
+
+ADD entrypoint.sh /action/entrypoint.sh
+
+RUN chmod +x /action/entrypoint.sh
+RUN apt-get update && apt-get install -y --no-install-recommends git
+
+ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/create-release-tag/entrypoint.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+set -e
+
+# GitHub doesn't support running actions on new tags yet: we need to run it on the commit.
+# For this reason, we can't be sure that the tag already exists. We can use the commit
+# message to create the tag. If the tag already exists locally, they won't conflict because
+# they have the same name and are on the same commit.
+
+echo "INFO: Getting release version..."
+tag_name=$(git log --oneline --format=%B -1 $GITHUB_SHA)
+
+echo "INFO: Creating new tag..."
+(git tag $tag_name $GITHUB_SHA) || echo "INFO: Tag already exists"

.github/actions/filter-commit-message/Dockerfile

@@ -0,0 +1,16 @@
+FROM debian:stable-slim
+
+LABEL "name"="filter"
+LABEL "version"="1.1.0"
+
+LABEL "com.github.actions.name"="Filter commit message"
+LABEL "com.github.actions.description"="Stop a workflow if the message of the current commit doesn't match the pattern"
+LABEL "com.github.actions.icon"="filter"
+LABEL "com.github.actions.color"="gray-dark"
+
+ADD entrypoint.sh /action/entrypoint.sh
+
+RUN chmod +x /action/entrypoint.sh
+RUN apt-get update && apt-get install -y --no-install-recommends git
+
+ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/filter-commit-message/entrypoint.sh

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+set -e
+
+pattern=$1
+message=$(git log --oneline --format=%B -1 $GITHUB_SHA)
+
+if echo "$message" | grep -Pq "$pattern"; then
+  echo "INFO: $message matches $pattern"
+  exit 0
+else
+  echo "INFO: $message does not match $pattern"
+  # 78 is the "neutral" exit status
+  exit 78
+fi

.github/actions/trigger-github-release/Dockerfile

@@ -0,0 +1,19 @@
+FROM node:10
+
+LABEL "name" = "trigger-github-release"
+LABEL "version" = "0.0.1"
+
+LABEL "com.github.actions.name" = "Trigger GitHub release"
+LABEL "com.github.actions.description" = "Trigger a new GitHub release and generate the changelog using lerna-changelog."
+LABEL "com.github.actions.icon" = "tag"
+LABEL "com.github.actions.color" = "yellow"
+
+ADD entrypoint.sh /action/entrypoint.sh
+ADD package.json /action/package.json
+ADD package-lock.json /action/package-lock.json
+ADD release.js /action/release.js
+ADD update-changelog.js /action/update-changelog.js
+
+RUN chmod +x /action/entrypoint.sh
+
+ENTRYPOINT ["/action/entrypoint.sh"]

.github/actions/trigger-github-release/entrypoint.sh

@@ -0,0 +1,38 @@
+#!/bin/sh
+
+set -e
+
+echo "INFO: Installing action dependencies..."
+(cd /action; npm ci)
+
+echo "INFO: Getting release version..."
+current_tag=$(git describe --abbrev=0 --tags $GITHUB_SHA)
+
+last_tag=$(git describe --abbrev=0 --tags $current_tag^)
+echo "INFO: New version is $current_tag; last version is $last_tag."
+
+echo "INFO: Generating the changelog..."
+
+# lerna-changelog expects the token to be provided as GITHUB_AUTH,
+# but GitHub actions don't allow to predefine custom env vars prefixed with
+# GITHUB_. We need to define it here.
+changelog=$(
+  GITHUB_AUTH="$GITHUB_TOKEN" \
+  node /action/node_modules/.bin/lerna-changelog --tag-from $last_tag --tag-to $current_tag
+)
+
+echo "INFO: Publishing the new GitHub release..."
+echo "$changelog" | node /action/release $current_tag
+
+echo "INFO: Updating CHANGELOG.md..."
+echo "$changelog" | node /action/update-changelog
+
+echo "INFO: Committing changelog..."
+git add CHANGELOG.md
+git -c user.name="$COMMIT_AUTHOR_NAME" -c user.email="$COMMIT_AUTHOR_EMAIL" \
+  commit -m "Add $current_tag to CHANGELOG.md [skip ci]" --no-verify --quiet
+
+echo "INFO: Pushing updates..."
+git push "https://${GITHUB_TOKEN}@github.com/${GITHUB_REPOSITORY}.git" master
+
+echo "INFO: Done! Don't forget to thank new contributors :)"

.github/actions/trigger-github-release/package.json

@@ -0,0 +1,12 @@
+{
+    "private": true,
+    "name": "@internal/trigger-github-release",
+    "version": "0.0.1",
+    "author": "Nicolò Ribaudo <nicolo.ribaudo@gmail.com>",
+    "license": "MIT",
+    "dependencies": {
+        "@octokit/rest": "^16.3.0",
+        "get-stdin": "^6.0.0",
+        "lerna-changelog": "^0.8.2"
+    }
+}

.github/actions/trigger-github-release/release.js

@@ -0,0 +1,26 @@
+"use strict";
+
+const [ /* node */, /* file */, tag ] = process.argv;
+
+const getStdin = require("get-stdin");
+const octokit = require("@octokit/rest")();
+
+octokit.authenticate({
+  type: "token",
+  token: process.env.GITHUB_TOKEN
+});
+
+const [ repoOwner, repoName ] = process.env.GITHUB_REPOSITORY.split("/");
+
+getStdin()
+  .then(changelog => octokit.repos.createRelease({
+    owner: repoOwner,
+    repo: repoName,
+    tag_name: tag,
+    body: changelog,
+    draft: true,
+  }))
+  .catch(err => {
+    console.error(err);
+    process.exit(1);
+  });

.github/actions/trigger-github-release/update-changelog.js

@@ -0,0 +1,31 @@
+"use strict";
+
+const getStdin = require("get-stdin");
+const fs = require("fs").promises;
+const path = require("path");
+
+const { GITHUB_WORKSPACE } = process.env;
+
+const INSERTION_POINT = "<!-- insert-new-changelog-here -->";
+const CHANGELOG = path.resolve(GITHUB_WORKSPACE, "CHANGELOG.md");
+
+main();
+async function main() {
+  let [stdin, changelog] = await Promise.all([
+    getStdin(),
+    fs.readFile(CHANGELOG, "utf8"),
+  ]);
+
+  if (!changelog.includes(INSERTION_POINT)) {
+    throw new Error(`Missing "${INSERTION_POINT}" in CHANGELOG.md`);
+  }
+
+  // Remove committers
+  stdin = stdin.split("\n\n#### Committers")[0];
+  changelog = changelog.replace(
+    INSERTION_POINT,
+    INSERTION_POINT + "\n" + stdin
+  );
+
+  await fs.writeFile(CHANGELOG, changelog);
+}

.github/main.workflow

@@ -0,0 +1,53 @@
+workflow "Release" {
+  on = "push"
+  resolves = [
+    "Trigger GitHub release",
+    # GitHub actions are too slow for this, it takes more than 15 mins.
+    # Publishing to npm from GH actions is a cool idea, but it's a lot faster to
+    # publish locally.
+    # "Publish to npm",
+   ]
+}
+
+action "Trigger GitHub release" {
+  uses = "./.github/actions/trigger-github-release/"
+  secrets = ["GITHUB_TOKEN"]
+  env = {
+    COMMIT_AUTHOR_NAME = "Babel Bot"
+    COMMIT_AUTHOR_EMAIL = "babel-bot@users.noreply.github.com"
+  }
+  needs = ["Create release tag"]
+}
+
+action "Publish to npm" {
+  uses = "docker://node:10"
+  secrets = ["NPM_TOKEN"]
+  runs = "make"
+  args = "publish-ci"
+  env = {
+    CI = "true"
+  }
+  needs = ["Create release tag"]
+}
+
+# When GitHub Actions will support the "release" event for public
+# repositories, we won't need this checks anymore.
+action "Create release tag" {
+  uses = "./.github/actions/create-release-tag"
+  needs = [
+    "Is version commit",
+    "On master branch",
+  ]
+}
+
+action "Is version commit" {
+  uses = "./.github/actions/filter-commit-message"
+  # This regex is run using "grep -P".
+  # The (-\\S+) part is for 7.0.0-beta.1 releases.
+  args = "^v(\\d+\\.){2}\\d+(-\\S+)?$"
+}
+
+action "On master branch" {
+  uses = "actions/bin/filter@master"
+  args = "branch master"
+}

.gitignore

@@ -1,6 +1,12 @@
+.npmrc
+
 .DS_Store
 /node_modules
+/.github/actions/*/node_modules
 /packages/*/node_modules
+/packages/*/LICENSE
+!/packages/babel-parser/LICENSE
+!/packages/babel-plugin-transform-object-assign/LICENSE
 *.log
 *.cache
 /build
@@ -12,6 +18,7 @@ coverage
 dist
 /.package.json
 package-lock.json
+!/.github/actions/*/package-lock.json
 
 /packages/babel-runtime/helpers/*.js
 !/packages/babel-runtime/helpers/toArray.js
@@ -33,6 +40,11 @@ package-lock.json
 /packages/babel-runtime-corejs2/core-js/**/*.js
 !/packages/babel-runtime-corejs2/core-js/map.js
 
+/packages/babel-runtime-corejs3/helpers/*.js
+/packages/babel-runtime-corejs3/helpers/esm/*.js
+/packages/babel-runtime-corejs3/core-js/**/*.js
+/packages/babel-runtime-corejs3/core-js-stable/**/*.js
+
 /packages/babel-register/test/.babel
 /packages/babel-cli/test/tmp
 /packages/babel-node/test/tmp

.prettierignore

@@ -1,2 +1,5 @@
 package.json
 packages/babel-preset-env/data
+packages/*/test/fixtures/**/input.*
+packages/*/test/fixtures/**/exec.*
+packages/*/test/fixtures/**/output.*

.prettierrc

@@ -7,7 +7,6 @@
   "bracketSpacing": true,
   "jsxBracketSameLine": false,
   "tabWidth": 2,
-  "parser": "babylon",
   "printWidth": 80,
   "overrides": [{
     "files": [
@@ -16,6 +15,7 @@
       "**/packages/*/src/**/*.js",
       "**/packages/*/test/**/*.js"
     ],
+    "parser": "babylon",
     "options": {
       "trailingComma": "all"
     }

.travis.yml

@@ -1,14 +1,12 @@
 git:
-  depth: 10
-sudo: false
+  depth: 5
 language: node_js
 cache:
   yarn: true
-  directories:
-    - node_modules
 node_js:
   # We test the latest version on circleci
-  - '9'
+  - '11'
+  - '10'
   - '8'
   - '6'
 
@@ -20,17 +18,20 @@ env:
 before_install:
   - curl -o- -L https://yarnpkg.com/install.sh | bash
 
-install: yarn --ignore-engines
+install:
+  # the `make test-ci` script runs this command already
+  - if [ "$JOB" != "test" ] && [ "$JOB" != "lint" ]; then yarn install; fi
+  - if [ "$JOB" = "lint" ]; then make bootstrap; fi
 
 before_script:
-  - 'if [ "$JOB" = "babel-parser-flow-tests" ]; then make bootstrap-flow; fi'
-  - 'if [ "$JOB" = "babel-parser-test262-tests" ]; then make bootstrap-test262; fi'
+  - if [ "$JOB" = "babel-parser-flow-tests" ]; then make bootstrap-flow; fi
+  - if [ "$JOB" = "babel-parser-test262-tests" ]; then make bootstrap-test262; fi
 
 script:
-  - 'if [ "$JOB" = "test" ]; then make test-ci; fi'
-  - 'if [ "$JOB" = "lint" ]; then make lint && make flow; fi'
-  - 'if [ "$JOB" = "babel-parser-flow-tests" ]; then make test-flow-ci; fi'
-  - 'if [ "$JOB" = "babel-parser-test262-tests" ]; then make test-test262-ci; fi'
+  - if [ "$JOB" = "test" ]; then make test-ci; fi
+  - if [ "$JOB" = "lint" ]; then make lint && make flow; fi
+  - if [ "$JOB" = "babel-parser-flow-tests" ]; then make test-flow-ci; fi
+  - if [ "$JOB" = "babel-parser-test262-tests" ]; then make test-test262-ci; fi
 
 matrix:
   fast_finish: true

CHANGELOG.md

@@ -11,10 +11,849 @@
 
 _Note: Gaps between patch versions are faulty, broken or test releases._
 
-See [CHANGELOG - v4-v6](/.github/CHANGELOG-v4-v6.md) for the v4.x-v6.x changelog.
+See [CHANGELOG - v4](/.github/CHANGELOG-v4.md), [CHANGELOG - v5](/.github/CHANGELOG-v5.md), and [CHANGELOG - v6](/.github/CHANGELOG-v6.md) for v4.x-v6.x changes.
 See [CHANGELOG - 6to5](/.github/CHANGELOG-6to5.md) for the pre-4.0.0 version changelog.
 See [Babylon's CHANGELOG](packages/babylon/CHANGELOG.md) for the Babylon pre-7.0.0-beta.29 version changelog.
 
+<!-- DO NOT CHANGE THESE COMMENTS - See .github/actions/trigger-github-release/update-changelog.js -->
+<!-- insert-new-changelog-here -->
+
+
+## v7.4.3 (2019-04-02)
+
+#### :eyeglasses: Spec Compliance
+* `babel-parser`
+  * [#9769](https://github.com/babel/babel/pull/9769) Don't accept '\08' or '\09' in strict mode. ([@danez](https://github.com/danez))
+  * [#9768](https://github.com/babel/babel/pull/9768) Correctly check for-in and for-of loop for invalid left-hand side. ([@danez](https://github.com/danez))
+  * [#9767](https://github.com/babel/babel/pull/9767) Parse right-hand-side of for/of as an assignment expression. ([@danez](https://github.com/danez))
+  * [#9748](https://github.com/babel/babel/pull/9748) [typescript] parsing template literal as type . ([@tanhauhau](https://github.com/tanhauhau))
+
+#### :rocket: New Feature
+* `babel-plugin-transform-runtime`
+  * [#9754](https://github.com/babel/babel/pull/9754) [runtime-corejs3] Only polyfill instance methods when it might be needed. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :bug: Bug Fix
+* `babel-polyfill`
+  * [#9780](https://github.com/babel/babel/pull/9780) Closes [#9232](https://github.com/babel/babel/issues/9232), add some missed modules to `@babel/polyfill/noConflict`. ([@zloirock](https://github.com/zloirock))
+* `babel-cli`
+  * [#9807](https://github.com/babel/babel/pull/9807) Upgrade lodash to 4.17.11. ([@danez](https://github.com/danez))
+* `babel-helper-module-transforms`, `babel-plugin-transform-modules-commonjs`
+  * [#9802](https://github.com/babel/babel/pull/9802) Fix lazy option of babel-plugin-transform-modules-commonjs. ([@AndreasCag](https://github.com/AndreasCag))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-private-methods`
+  * [#9801](https://github.com/babel/babel/pull/9801) Fix super method call in private instance method calling overridden method. ([@MattiasBuelens](https://github.com/MattiasBuelens))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-destructuring`
+  * [#9416](https://github.com/babel/babel/pull/9416) Destructuring: Fix handling of impure computed keys with object rest. ([@motiz88](https://github.com/motiz88))
+* `babel-plugin-transform-destructuring`
+  * [#9412](https://github.com/babel/babel/pull/9412) Destructuring: Fix array unpacking assignments with holes on RHS. ([@motiz88](https://github.com/motiz88))
+* `babel-traverse`
+  * [#9415](https://github.com/babel/babel/pull/9415) @babel/traverse: Fix NodePath.getData. ([@71](https://github.com/71))
+* `babel-parser`
+  * [#9760](https://github.com/babel/babel/pull/9760) Allow HTML comments on first line. ([@danez](https://github.com/danez))
+  * [#9700](https://github.com/babel/babel/pull/9700) Fix compatibility between estree and TS plugin. ([@danez](https://github.com/danez))
+* `babel-helpers`
+  * [#9756](https://github.com/babel/babel/pull/9756) Allow coreJS Symbol to be type object. ([@conartist6](https://github.com/conartist6))
+* `babel-preset-env`
+  * [#9752](https://github.com/babel/babel/pull/9752) Normalize `core-js` entry points. ([@zloirock](https://github.com/zloirock))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9762](https://github.com/babel/babel/pull/9762) Optimize parseBindingAtom code to get better error messages. ([@danez](https://github.com/danez))
+* `babel-core`, `babel-plugin-transform-for-of`
+  * [#9698](https://github.com/babel/babel/pull/9698) Move array reference into `for` head initializer. ([@danez](https://github.com/danez))
+
+#### :house: Internal
+* Other
+  * [#9806](https://github.com/babel/babel/pull/9806) Update test262. ([@danez](https://github.com/danez))
+* `babel-parser`, `babel-preset-typescript`
+  * [#9761](https://github.com/babel/babel/pull/9761) Explicit labels for tokenTypes. ([@danez](https://github.com/danez))
+
+
+## v7.4.2 (2019-03-21)
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9725](https://github.com/babel/babel/pull/9725) Modules might be in loose mode when checking for undecl exports ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9719](https://github.com/babel/babel/pull/9719) Fix scope checks with enabled flow plugin ([@danez](https://github.com/danez))
+* `babel-helpers`, `babel-plugin-transform-named-capturing-groups-regex`
+  * [#9726](https://github.com/babel/babel/pull/9726) Fix typo in wrapRegExp helper ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9724](https://github.com/babel/babel/pull/9724) Closes [#9713](https://github.com/babel/babel/issues/9713) ([@zloirock](https://github.com/zloirock))
+
+#### :nail_care: Polish
+* `babel-preset-env`
+  * [#9732](https://github.com/babel/babel/pull/9732) Mark the core-js warning as such ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9716](https://github.com/babel/babel/pull/9716) Tweak preset-env corejs/useBuiltIns warning and error messages ([@existentialism](https://github.com/existentialism))
+
+#### :house: Internal
+* [#9718](https://github.com/babel/babel/pull/9718) Bump Babel deps ([@existentialism](https://github.com/existentialism))
+
+## v7.4.1 (2019-03-20)
+
+#### :bug: Bug Fix
+* `babel-preset-env`
+  * [#9711](https://github.com/babel/babel/pull/9711) Alias @babel/preset-env/data/built-ins.json.js ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9709](https://github.com/babel/babel/pull/9709) Bring back isPluginRequired ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.4.0 (2019-03-19)
+
+#### :eyeglasses: Spec Compliance
+* `babel-parser`
+  * [#9529](https://github.com/babel/babel/pull/9529) Add `readonly` to TypeScript type modifier ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9534](https://github.com/babel/babel/pull/9534) TypeScript Constant contexts ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9637](https://github.com/babel/babel/pull/9637) Update identifier parsing per Unicode v12 ([@mathiasbynens](https://github.com/mathiasbynens))
+  * [#9616](https://github.com/babel/babel/pull/9616) Allow any reserved word in `export {} from` specifiers ([@danez](https://github.com/danez))
+  * [#9612](https://github.com/babel/babel/pull/9612) [TS] Disallow type casts in arrow parameters ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9607](https://github.com/babel/babel/pull/9607) Refactor parsing object members ([@danez](https://github.com/danez))
+  * [#9599](https://github.com/babel/babel/pull/9599) Disallow duplicate params in methods ([@danez](https://github.com/danez))
+  * [#9586](https://github.com/babel/babel/pull/9586) Treat for loop body as part of loop scope ([@danez](https://github.com/danez))
+* `babel-parser`, `babel-plugin-transform-typescript`
+  * [#9641](https://github.com/babel/babel/pull/9641) Allow context type annotation on getters/setters ([@matt-tingen](https://github.com/matt-tingen))
+* `babel-plugin-proposal-unicode-property-regex`, `babel-plugin-transform-dotall-regex`, `babel-plugin-transform-unicode-regex`
+  * [#9636](https://github.com/babel/babel/pull/9636) Update babel-plugin-proposal-unicode-property-regex for Unicode v12 ([@mathiasbynens](https://github.com/mathiasbynens))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-flow-strip-types`, `babel-plugin-transform-modules-systemjs`
+  * [#9589](https://github.com/babel/babel/pull/9589) Check exported bindings are defined ([@danez](https://github.com/danez))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-classes`, `babel-plugin-transform-flow-comments`, `babel-plugin-transform-flow-strip-types`, `babel-plugin-transform-new-target`
+  * [#9493](https://github.com/babel/babel/pull/9493) Introduce scope tracking in the parser ([@danez](https://github.com/danez))
+
+#### :rocket: New Feature
+* `babel-helpers`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-runtime`, `babel-plugin-transform-typescript`, `babel-polyfill`, `babel-preset-env`, `babel-register`, `babel-runtime-corejs2`, `babel-runtime-corejs3`
+  * [#7646](https://github.com/babel/babel/pull/7646) Update to `core-js@3` ([@zloirock](https://github.com/zloirock))
+* `babel-template`
+  * [#9648](https://github.com/babel/babel/pull/9648) Add %%placeholders%% support to @babel/template ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`, `babel-plugin-proposal-partial-application`
+  * [#9474](https://github.com/babel/babel/pull/9474) Partial application plugin ([@byara](https://github.com/byara))
+* `babel-generator`, `babel-helper-create-class-features-plugin`, `babel-helpers`, `babel-plugin-proposal-private-methods`
+  * [#9446](https://github.com/babel/babel/pull/9446) Private Static Class Methods (Stage 3) ([@tim-mc](https://github.com/tim-mc))
+* `babel-generator`, `babel-types`
+  * [#9542](https://github.com/babel/babel/pull/9542) Add placeholders support to @babel/types and @babel/generator ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#9364](https://github.com/babel/babel/pull/9364) Add parser support for placeholders ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-generator`, `babel-parser`, `babel-plugin-syntax-partial-application`, `babel-types`
+  * [#9343](https://github.com/babel/babel/pull/9343) Partial Application Syntax: Stage 1 ([@byara](https://github.com/byara))
+
+#### :bug: Bug Fix
+* `babel-helper-create-class-features-plugin`, `babel-helper-replace-supers`, `babel-plugin-proposal-private-methods`
+  * [#9704](https://github.com/babel/babel/pull/9704) Fix `super` Method Calls in Class Private Methods ([@tim-mc](https://github.com/tim-mc))
+* `babel-parser`
+  * [#9699](https://github.com/babel/babel/pull/9699) Correctly parse TS TypeAssertions around arrow functions ([@danez](https://github.com/danez))
+  * [#9600](https://github.com/babel/babel/pull/9600) Fix scope check for 2nd+ lexical bindings ([@danez](https://github.com/danez))
+  * [#9593](https://github.com/babel/babel/pull/9593) [TS] Correctly forget `await`s after parsing async arrows with type args ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9585](https://github.com/babel/babel/pull/9585) Fix strict mode prescanning with EmptyStatement ([@danez](https://github.com/danez))
+* `babel-core`, `babel-plugin-transform-for-of`
+  * [#9697](https://github.com/babel/babel/pull/9697) Correctly preserve reference to array in for-of loop ([@danez](https://github.com/danez))
+* `babel-plugin-transform-typescript`
+  * [#9693](https://github.com/babel/babel/pull/9693) [plugin-transform-typescript] Fix transpiling of TS abstract classes with decorators  ([@agoldis](https://github.com/agoldis))
+* `babel-traverse`, `babel-types`
+  * [#9692](https://github.com/babel/babel/pull/9692) Fix TSFunctionType visitors definition ([@penielse](https://github.com/penielse))
+* `babel-plugin-proposal-object-rest-spread`
+  * [#9628](https://github.com/babel/babel/pull/9628) [proposal-object-rest-spread] fix templateLiteral in extractNormalizedKeys  ([@pnowak](https://github.com/pnowak))
+* `babel-plugin-transform-modules-systemjs`
+  * [#9639](https://github.com/babel/babel/pull/9639) System modules - Hoist classes like other variables ([@guybedford](https://github.com/guybedford))
+* `babel-generator`, `babel-parser`
+  * [#9618](https://github.com/babel/babel/pull/9618) Disallow escape sequences in contextual keywords ([@danez](https://github.com/danez))
+* `babel-helper-split-export-declaration`, `babel-plugin-transform-modules-commonjs`, `babel-traverse`
+  * [#9613](https://github.com/babel/babel/pull/9613) Don't add params of anonymous exported function decls to the outer scope ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-transform-parameters`, `babel-plugin-transform-typescript`, `babel-types`
+  * [#9605](https://github.com/babel/babel/pull/9605) [plugin-transform-typescript] Strip type imports used in Enums and object types ([@echenley](https://github.com/echenley))
+* `babel-helper-call-delegate`, `babel-plugin-transform-parameters`
+  * [#9601](https://github.com/babel/babel/pull/9601) Don't loose "this" in helper-call-delegate ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-modules-commonjs`, `babel-traverse`, `babel-types`
+  * [#9492](https://github.com/babel/babel/pull/9492) Mark FOO in "var { x: FOO }˝ as a binding, not as a reference ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9595](https://github.com/babel/babel/pull/9595) preset-env: Sort versions before determining lowest ([@jridgewell](https://github.com/jridgewell))
+* `babel-helper-define-map`, `babel-helper-hoist-variables`, `babel-parser`, `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-block-scoping`, `babel-plugin-transform-destructuring`, `babel-plugin-transform-modules-systemjs`, `babel-traverse`, `babel-types`
+  * [#9518](https://github.com/babel/babel/pull/9518) Use `for..of Object.keys` instead of `for..in` ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9646](https://github.com/babel/babel/pull/9646) Remove input and length from state ([@danez](https://github.com/danez))
+  * [#9645](https://github.com/babel/babel/pull/9645) Reorganize token types and use a map for them ([@danez](https://github.com/danez))
+  * [#9591](https://github.com/babel/babel/pull/9591) Remove always false param allowExpressionBody ([@danez](https://github.com/danez))
+* `babel-standalone`, `babel-types`
+  * [#9025](https://github.com/babel/babel/pull/9025) Make babel-standalone an ESModule and enable flow ([@danez](https://github.com/danez))
+* `babel-generator`
+  * [#9579](https://github.com/babel/babel/pull/9579) change var name for coherence ([@tanohzana](https://github.com/tanohzana))
+
+#### :house: Internal
+* Other
+  * [#9588](https://github.com/babel/babel/pull/9588) Publish to npm using a GitHub action ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9640](https://github.com/babel/babel/pull/9640) Switch from rollup-stream to rollup ([@danez](https://github.com/danez))
+  * [#9647](https://github.com/babel/babel/pull/9647) Add WarningsToErrorsPlugin to webpack to avoid missing build problems on CI ([@danez](https://github.com/danez))
+  * [#9624](https://github.com/babel/babel/pull/9624) Update dependencies ([@danez](https://github.com/danez))
+  * [#9623](https://github.com/babel/babel/pull/9623) Add editorconfig for Makefile ([@danez](https://github.com/danez))
+  * [#9587](https://github.com/babel/babel/pull/9587) Update test262 ([@danez](https://github.com/danez))
+  * [#9582](https://github.com/babel/babel/pull/9582) Minify bundles on circle for repl ([@danez](https://github.com/danez))
+* `babel-register`
+  * [#9678](https://github.com/babel/babel/pull/9678) Remove dependency on home-or-tmp package ([@AmirS](https://github.com/AmirS))
+
+## v7.3.4 (2019-02-25)
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9572](https://github.com/babel/babel/pull/9572) Fix TypeScript parsers missing token check (#9571) ([@elevatebart](https://github.com/elevatebart))
+  * [#9521](https://github.com/babel/babel/pull/9521) Also check AssignmentPatterns for duplicate export name ([@danez](https://github.com/danez))
+* `babel-helper-create-class-features-plugin`, `babel-helper-replace-supers`, `babel-plugin-proposal-class-properties`, `babel-traverse`
+  * [#9508](https://github.com/babel/babel/pull/9508) Use correct "this" in static fields ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9566](https://github.com/babel/babel/pull/9566) Closes [#9465](https://github.com/babel/babel/issues/9465) ([@zloirock](https://github.com/zloirock))
+* `babel-types`
+  * [#9539](https://github.com/babel/babel/pull/9539) babel-types is* type checks accept null | undefiend as value TS type ([@ian-craig](https://github.com/ian-craig))
+* `babel-plugin-transform-block-scoping`, `babel-traverse`
+  * [#9532](https://github.com/babel/babel/pull/9532) Migrate some duplicate binding tests to traverse ([@danez](https://github.com/danez))
+* `babel-generator`
+  * [#9524](https://github.com/babel/babel/pull/9524) Fix typescript generator params ([@tanhauhau](https://github.com/tanhauhau))
+  * [#9523](https://github.com/babel/babel/pull/9523) Fix flow babel-generator function parantheses ([@tanhauhau](https://github.com/tanhauhau))
+
+#### :house: Internal
+* Other
+  * [#9561](https://github.com/babel/babel/pull/9561) Update CHANGELOG.md using the "Trigger GitHub release" action ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-modules-systemjs`
+  * [#9541](https://github.com/babel/babel/pull/9541) Enable eqeqeq rule in eslint ([@danez](https://github.com/danez))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-flow-strip-types`, `babel-traverse`
+  * [#9522](https://github.com/babel/babel/pull/9522) Make tests spec compliant by avoiding duplicate declarations in input files ([@danez](https://github.com/danez))
+* `babel-plugin-transform-proto-to-assign`
+  * [#9533](https://github.com/babel/babel/pull/9533) Add import/no-extraneous-dependencies to ESLint ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.3.3 (2019-02-15)
+
+#### :eyeglasses: Spec Compliancy
+* `babel-generator`
+  * [#9501](https://github.com/babel/babel/pull/9501) Correctly output escapes in directives ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9477](https://github.com/babel/babel/pull/9477) Fix regression with let ([@danez](https://github.com/danez))
+  * [#9431](https://github.com/babel/babel/pull/9431) Typescript function destructured params ([@mhcgrq](https://github.com/mhcgrq))
+  * [#9463](https://github.com/babel/babel/pull/9463) Fix range for TypeScript optional parameter in arrow function ([@existentialism](https://github.com/existentialism))
+
+#### :nail_care: Polish
+* `babel-plugin-proposal-class-properties`, `babel-plugin-transform-classes`, `babel-plugin-transform-parameters`
+  * [#9458](https://github.com/babel/babel/pull/9458) Fix duplicated assertThisInitialized calls in constructors ([@rubennorte](https://github.com/rubennorte))
+
+#### :house: Internal
+* Other
+  * [#9517](https://github.com/babel/babel/pull/9517) Add duplicate-package-checker-webpack-plugin ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9469](https://github.com/babel/babel/pull/9469) Exclude generate @babel/types files from coverage report ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#9491](https://github.com/babel/babel/pull/9491) Better error output in parser tests ([@danez](https://github.com/danez))
+## v7.3.2 (2019-02-04)
+
+Various spec compliancy fixes and better support for smart pipelines and private methods.
+
+Thanks @gverni, @naffiq, @spondbob and @dstaley for their first PRs!
+
+#### :eyeglasses: Spec Compliancy
+* `babel-parser`
+  * [#9403](https://github.com/babel/babel/pull/9403) Fix line continuation with Unicode line terminators. ([@danez](https://github.com/danez))
+  * [#9400](https://github.com/babel/babel/pull/9400) Make yield a contextual keyword. ([@danez](https://github.com/danez))
+  * [#9398](https://github.com/babel/babel/pull/9398) Correctly fail for invalid yield in for. ([@danez](https://github.com/danez))
+  * [#9375](https://github.com/babel/babel/pull/9375) Make let a contextual keyword. ([@danez](https://github.com/danez))
+
+#### :rocket: New Feature
+* `babel-plugin-proposal-pipeline-operator`
+  * [#9401](https://github.com/babel/babel/pull/9401) Support for await and yield in pipelines. ([@thiagoarrais](https://github.com/thiagoarrais))
+
+#### :bug: Bug Fix
+* `babel-plugin-proposal-private-methods`, `babel-types`
+  * [#9453](https://github.com/babel/babel/pull/9453) Fix duplicate definition error in private class methods. ([@gverni](https://github.com/gverni))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-private-methods`
+  * [#9423](https://github.com/babel/babel/pull/9423) Transform private async and generator functions. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-object-rest-spread`, `babel-plugin-transform-destructuring`
+  * [#9414](https://github.com/babel/babel/pull/9414) Destructuring: Create assignments from ForX non-declaration patterns. ([@motiz88](https://github.com/motiz88))
+* `babel-plugin-transform-typescript`
+  * [#9095](https://github.com/babel/babel/pull/9095) Retain JSX pragma if defined as a comment. ([@dstaley](https://github.com/dstaley))
+* `babel-parser`
+  * [#9406](https://github.com/babel/babel/pull/9406) Fix location/range on TypeScript ExportNamedDeclarations. ([@existentialism](https://github.com/existentialism))
+  * [#9371](https://github.com/babel/babel/pull/9371) Allow toplevel await with option and correctly mark await keyword as unexpected. ([@danez](https://github.com/danez))
+* `babel-plugin-transform-typescript`, `babel-types`
+  * [#8738](https://github.com/babel/babel/pull/8738) Fix typescript side effects. ([@yuri-karadzhov](https://github.com/yuri-karadzhov))
+* `babel-generator`, `babel-types`
+  * [#9396](https://github.com/babel/babel/pull/9396) Fix support for Flow's QualifiedTypeIdentifier. ([@existentialism](https://github.com/existentialism))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9405](https://github.com/babel/babel/pull/9405) Simplify await and yield tracking in params. ([@danez](https://github.com/danez))
+* `babel-parser`, `babel-preset-typescript`
+  * [#9402](https://github.com/babel/babel/pull/9402) Unify reserved word checking and update error messages. ([@danez](https://github.com/danez))
+
+## v7.3.1 (2019-01-22)
+
+This release fixes some regressions introduced in v7.3.0
+
+#### :bug: Bug Fix
+* `babel-helpers`, `babel-plugin-proposal-object-rest-spread`, `babel-preset-env`
+  * [#9379](https://github.com/babel/babel/pull/9379) Revert "Differentiate object spread and non-spread properties (#9341)". ([@danez](https://github.com/danez))
+* `babel-parser`
+  * [#9377](https://github.com/babel/babel/pull/9377) fix new keyword broken by recent refactoring. ([@danez](https://github.com/danez))
+
+## v7.3.0 (2019-01-21)
+
+Thanks to @jamesgeorge007 and @armano2 for their first PR!
+
+#### :eyeglasses: Spec Compliancy
+* `babel-parser`
+  * [#9314](https://github.com/babel/babel/pull/9314) Disallow async functions as loop body. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9315](https://github.com/babel/babel/pull/9315) Parse class heritage as strict mode code. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9313](https://github.com/babel/babel/pull/9313) Disallow `new import(x)` and `import(x,)`. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9311](https://github.com/babel/babel/pull/9311) Disallow trailing comma after rest. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :rocket: New Feature
+* `babel-helper-create-class-features-plugin`, `babel-helpers`, `babel-plugin-proposal-private-methods`
+  * [#9101](https://github.com/babel/babel/pull/9101) Private Class Methods Stage 3: Private Accessors. ([@tim-mc](https://github.com/tim-mc))
+* `babel-plugin-proposal-pipeline-operator`, `babel-plugin-syntax-pipeline-operator`
+  * [#9179](https://github.com/babel/babel/pull/9179) Transform for the smart pipeline operator proposal. ([@thiagoarrais](https://github.com/thiagoarrais))
+* `babel-preset-env-standalone`, `babel-preset-env`
+  * [#9345](https://github.com/babel/babel/pull/9345) Add support for transform-named-capturing-groups-regex in preset-env. ([@existentialism](https://github.com/existentialism))
+* `babel-helpers`, `babel-plugin-transform-named-capturing-groups-regex`
+  * [#7105](https://github.com/babel/babel/pull/7105) Add @babel/plugin-transform-named-capturing-groups-regex. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9323](https://github.com/babel/babel/pull/9323) Add support for proposal-json-strings in preset-env. ([@existentialism](https://github.com/existentialism))
+* `babel-generator`, `babel-types`
+  * [#9309](https://github.com/babel/babel/pull/9309) Add emit and builder for TSImportType. ([@hzoo](https://github.com/hzoo))
+* `babel-parser`
+  * [#9302](https://github.com/babel/babel/pull/9302) @babel/parser(ts): Add parsing of type import. ([@armano2](https://github.com/armano2))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9336](https://github.com/babel/babel/pull/9336) Disallow usage of invalid keyword after export abstract statement in Typescript. ([@armano2](https://github.com/armano2))
+  * [#9328](https://github.com/babel/babel/pull/9328) Fix handling newline with TypeScript declare and abstract classes. ([@existentialism](https://github.com/existentialism))
+  * [#9335](https://github.com/babel/babel/pull/9335) Fix range on TypeScript index signature parameters. ([@existentialism](https://github.com/existentialism))
+  * [#9292](https://github.com/babel/babel/pull/9292) Throw error if TypeScript class has empty implements. ([@existentialism](https://github.com/existentialism))
+  * [#9284](https://github.com/babel/babel/pull/9284) Fix location for typescript type assertions in AST. ([@danez](https://github.com/danez))
+  * [#9276](https://github.com/babel/babel/pull/9276) Ensure modifiers are included in TSParameterProperty ranges. ([@existentialism](https://github.com/existentialism))
+  * [#9230](https://github.com/babel/babel/pull/9230) babel-parser: typescript: add missing bigint keyword. ([@armano2](https://github.com/armano2))
+* `babel-types`
+  * [#9333](https://github.com/babel/babel/pull/9333) Copy "optional" property when cloning Identifier node. ([@unconfident](https://github.com/unconfident))
+* `babel-helper-create-class-features-plugin`, `babel-helpers`, `babel-plugin-proposal-decorators`
+  * [#9244](https://github.com/babel/babel/pull/9244) [decorators] Set method names at compile time instead of at runtime. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helper-builder-react-jsx`, `babel-plugin-transform-react-jsx`
+  * [#9119](https://github.com/babel/babel/pull/9119) Revert "Revert babel-helper-builder-react-jsx change from #4988". ([@danez](https://github.com/danez))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-private-methods`
+  * [#9248](https://github.com/babel/babel/pull/9248) [private methods] Define private methods before executing initializers. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-preset-env`
+  * [#9219](https://github.com/babel/babel/pull/9219) Fix handling scoped packages in preset-env include/exclude options. ([@existentialism](https://github.com/existentialism))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#9348](https://github.com/babel/babel/pull/9348) Parser Performance Collection. ([@danez](https://github.com/danez))
+
+#### :memo: Documentation
+* [#9370](https://github.com/babel/babel/pull/9370) add v7 downloads [skip ci]. ([@hzoo](https://github.com/hzoo))
+
+#### :house: Internal
+* `babel-parser`
+  * [#9312](https://github.com/babel/babel/pull/9312) Merge declaration and init of props in parser's state. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-types`
+  * [#9245](https://github.com/babel/babel/pull/9245) [@babel/types] Moved generators related to babel-types into the babel-types package directory.. ([@cameron-martin](https://github.com/cameron-martin))
+* Other
+  * [#9288](https://github.com/babel/babel/pull/9288) Test262 update. ([@existentialism](https://github.com/existentialism))
+  * [#9290](https://github.com/babel/babel/pull/9290) Use 2014-present in license. ([@xtuc](https://github.com/xtuc))
+  * [#9271](https://github.com/babel/babel/pull/9271) Bump license years for 2019. ([@berlamhenderson](https://github.com/berlamhenderson))
+* `babel-helpers`
+  * [#9166](https://github.com/babel/babel/pull/9166) Add mixins support to the _decorate helper. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  
+## v7.2.5 (2018-12-21)
+
+`@babel/polyfill` didn't get published correctly in v7.2.3 (#9227).
+
+## v7.2.4 (2018-12-20)
+
+Minify `@babel/standalone` and `@babel/preset-env-standalone`.
+
+## v7.2.3 (2018-12-20)
+
+This is a small release, mainly to test Lerna 3.
+We force-published `@babel/polyfill` and `@babel/preset-env`, since they should have been released respectively in v7.1.0 and v7.2.2 but for different reasons they didn't get updated.
+
+Half of the commits in this release are made by first time contributors! Thanks to @cameron-martin, @cphamlet, @tanhauhau and @jedwards1211. :tada:
+
+#### :rocket: New Feature
+* [#9110](https://github.com/babel/babel/pull/9110) Added type-level mapping between aliases and nodes that have that alias. ([@cameron-martin](https://github.com/cameron-martin))
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-flow-strip-types`
+  * [#9197](https://github.com/babel/babel/pull/9197) Strips flow directive fully. ([@tanhauhau](https://github.com/tanhauhau))
+* `babel-parser`
+  * [#9184](https://github.com/babel/babel/pull/9184) Allow keywords to be used in type annotations. ([@danez](https://github.com/danez))
+
+#### :house: Internal
+* `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-plugin-proposal-private-methods`, `babel-traverse`
+  * [#9206](https://github.com/babel/babel/pull/9206) Use @babel/eslint-plugin-developement. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.2.2 (2018-12-15)
+
+Mostrly bug fixes and internal changes.
+Thanks to @paleite, @saschanaz and @joeldenning for their first PRs!
+
+#### :bug: Bug Fix
+* `babel-plugin-transform-destructuring`, `babel-plugin-transform-spread`
+  * [#9108](https://github.com/babel/babel/pull/9108) Correctly transform spreads to use proper concat method. ([@danez](https://github.com/danez))
+* `babel-parser`
+  * [#9168](https://github.com/babel/babel/pull/9168) [parser] Handle flow comments with leading spaces. ([@vikr01](https://github.com/vikr01))
+* `babel-helper-module-transforms`, `babel-plugin-transform-modules-commonjs`
+  * [#9171](https://github.com/babel/babel/pull/9171) Fix transforming empty export statement. ([@danez](https://github.com/danez))
+* `babel-node`
+  * [#9148](https://github.com/babel/babel/pull/9148) Fix --root-mode option in babel-node. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-transform-classes`
+  * [#9135](https://github.com/babel/babel/pull/9135) Inherit properties in function from method in loose mode. ([@rubennorte](https://github.com/rubennorte))
+* `babel-preset-env`
+  * [#9140](https://github.com/babel/babel/pull/9140) Disable parameter-destructuring in Edge 18. ([@saschanaz](https://github.com/saschanaz))
+* `babel-plugin-transform-arrow-functions`, `babel-traverse`
+  * [#9060](https://github.com/babel/babel/pull/9060) Not depending on return value of super(). Closes [#9020](https://github.com/babel/babel/issues/9020).. ([@joeldenning](https://github.com/joeldenning))
+
+#### :house: Internal
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-nullish-coalescing-operator`, `babel-plugin-syntax-bigint`, `babel-plugin-transform-dotall-regex`
+  * [#9176](https://github.com/babel/babel/pull/9176) Fix package.json repository URLs. ([@paleite](https://github.com/paleite))
+* Other
+  * [#9158](https://github.com/babel/babel/pull/9158) add triage label to new issues [skip ci]. ([@danez](https://github.com/danez))
+  * [#9143](https://github.com/babel/babel/pull/9143) Fix a typo from the issue template for bugs. ([@saschanaz](https://github.com/saschanaz))
+  * [#9133](https://github.com/babel/babel/pull/9133) Move to travis vm based builds. ([@danez](https://github.com/danez))
+  * [#9132](https://github.com/babel/babel/pull/9132) Ensure we always use repository versions of babel dependencies in tests. ([@danez](https://github.com/danez))
+  * [#9131](https://github.com/babel/babel/pull/9131) Update issue templates [skip ci]. ([@hzoo](https://github.com/hzoo))
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`
+  * [#9059](https://github.com/babel/babel/pull/9059) Move decorators transform to @babel/helper-create-class-features-plugin. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`, `babel-parser`, `babel-template`
+  * [#9128](https://github.com/babel/babel/pull/9128) Fix running flow on travis and update flow. ([@danez](https://github.com/danez))
+
+## v7.2.1 (2018-12-04)
+
+This release fixes a regression introduced in v7.2.0 (https://github.com/babel/babel/issues/9120)
+
+#### :bug: Bug Fix
+* `babel-helper-create-class-features-plugin`
+  * [#9121](https://github.com/babel/babel/pull/9121) Don't use isClassPrivateMethod because it isn't supported in <7.2.0. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.2.0 (2018-12-03)
+
+You can read more about this release at https://babeljs.io/blog/2018/12/03/7.2.0.
+
+#### :rocket: New Feature
+* `babel-parser`
+  * [#8289](https://github.com/babel/babel/pull/8289) Implement Smart Pipeline proposal in @babel/parser. ([@mAAdhaTTah](https://github.com/mAAdhaTTah))
+* `babel-core`
+  * [#8986](https://github.com/babel/babel/pull/8986) Export @babel/parser#tokTypes in @babel/core. ([@kaicataldo](https://github.com/kaicataldo))
+* `babel-node`
+  * [#9078](https://github.com/babel/babel/pull/9078) Pass `rootMode` from `@babel/node`.. ([@wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg))
+* `babel-generator`, `babel-helpers`, `babel-plugin-class-features`, `babel-plugin-proposal-private-methods`, `babel-plugin-syntax-class-properties`, `babel-types`
+  * [#8654](https://github.com/babel/babel/pull/8654) Private class methods stage 3. ([@tim-mc](https://github.com/tim-mc))
+* `babel-preset-env`
+  * [#9048](https://github.com/babel/babel/pull/9048) Update mappings for node 10 in preset-env. ([@existentialism](https://github.com/existentialism))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#9114](https://github.com/babel/babel/pull/9114) Parse non-octals with leading zeros in non strict mode correctly. ([@danez](https://github.com/danez))
+  * [#9074](https://github.com/babel/babel/pull/9074) Disallow await inside arrow functions. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9069](https://github.com/babel/babel/pull/9069) [flow] Allow type casts in array patterns inside arrow parameters. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#9058](https://github.com/babel/babel/pull/9058) Fix compatibility between typescript and jsx plugins in interface declarations. ([@danez](https://github.com/danez))
+  * [#9055](https://github.com/babel/babel/pull/9055) Fix bug with parsing TS generic async arrow function. ([@existentialism](https://github.com/existentialism))
+  * [#9035](https://github.com/babel/babel/pull/9035) Fix parsing typescript function types with destructuring. ([@danez](https://github.com/danez))
+* `babel-helper-fixtures`, `babel-parser`
+  * [#9113](https://github.com/babel/babel/pull/9113) Ignore empty fixture directories and fix fixtures in the parser. ([@danez](https://github.com/danez))
+* `babel-preset-env`
+  * [#9091](https://github.com/babel/babel/pull/9091) Update mapping for regex unicode plugin in preset-env. ([@existentialism](https://github.com/existentialism))
+* `babel-plugin-transform-destructuring`
+  * [#8916](https://github.com/babel/babel/pull/8916) Fix destructuring assignment in arrow functions without block. ([@RubenVerborgh](https://github.com/RubenVerborgh))
+* `babel-plugin-proposal-optional-chaining`
+  * [#9073](https://github.com/babel/babel/pull/9073) Microbouji patch/8136. ([@jridgewell](https://github.com/jridgewell))
+* `babel-core`, `babel-helper-wrap-function`, `babel-plugin-proposal-async-generator-functions`, `babel-plugin-proposal-function-sent`, `babel-plugin-transform-async-to-generator`, `babel-plugin-transform-classes`
+  * [#9039](https://github.com/babel/babel/pull/9039) Fix recursive async function expressions. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`
+  * [#9034](https://github.com/babel/babel/pull/9034) Normalize presets before merging config with others.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :nail_care: Polish
+* `babel-generator`
+  * [#9089](https://github.com/babel/babel/pull/9089) Remove unused variable. ([@Gcaufy](https://github.com/Gcaufy))
+* `babel-node`
+  * [#9079](https://github.com/babel/babel/pull/9079) Move `fs-readdir-recursive` and `output-file-sync` to `devDependencies` for `@babel/node`.. ([@wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg))
+* `babel-parser`
+  * [#9046](https://github.com/babel/babel/pull/9046) a better error message for disallowed trailing commas/additional parameters after rest elements in function params. ([@morozRed](https://github.com/morozRed))
+* `babel-*`
+  * [#8769](https://github.com/babel/babel/pull/8769) Add plugins name. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :house: Internal
+* `babel-helper-create-class-features-plugin`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-private-methods`
+  * [#9083](https://github.com/babel/babel/pull/9083) Make @babel/plugin-class-features a normal helper package. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* Other
+  * [#9096](https://github.com/babel/babel/pull/9096) Add node 11 to CI and remove node 9. ([@danez](https://github.com/danez))
+  * [#9094](https://github.com/babel/babel/pull/9094) Skip minifying standalone in non-publish runs. ([@danez](https://github.com/danez))
+* `babel-types`
+  * [#9093](https://github.com/babel/babel/pull/9093) Fix warning when using prettier in code generators. ([@danez](https://github.com/danez))
+* `babel-generator`
+  * [#9089](https://github.com/babel/babel/pull/9089) Remove unused variable. ([@Gcaufy](https://github.com/Gcaufy))
+
+## v7.1.6 (2018-11-13)
+
+#### :bug: Bug Fix
+* `babel-generator`
+  * [#9003](https://github.com/babel/babel/pull/9003) Fix retainLines regression for arrow functions. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-types`
+  * [#8997](https://github.com/babel/babel/pull/8997) Fix cloneNode with typeAnnotation.. ([@neoziro](https://github.com/neoziro))
+* `babel-plugin-transform-flow-strip-types`, `babel-plugin-transform-react-jsx`
+  * [#8701](https://github.com/babel/babel/pull/8701) Fix "TypeError: comments is not iterable". ([@AlicanC](https://github.com/AlicanC))
+* `babel-core`
+  * [#9004](https://github.com/babel/babel/pull/9004) Fix browser files to have the same API as the nodejs ones. ([@danez](https://github.com/danez))
+* Other
+  * [#9007](https://github.com/babel/babel/pull/9007) [Types] fix generated TS/Flow comment types. ([@ljqx](https://github.com/ljqx))
+* `babel-preset-env`
+  * [#8555](https://github.com/babel/babel/pull/8555) preset-env: fix `opera` from `esmodules` target and Browserslist not used. ([@ylemkimon](https://github.com/ylemkimon))
+* `babel-plugin-proposal-decorators`, `babel-traverse`
+  * [#8970](https://github.com/babel/babel/pull/8970) [decorators] Correctly insert `_initialize(this)` after `super()`.. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`
+  * [#8972](https://github.com/babel/babel/pull/8972) Fix several edge cases with context expression state. ([@danez](https://github.com/danez))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#8984](https://github.com/babel/babel/pull/8984) Rename primitive types to reserved types. ([@danez](https://github.com/danez))
+
+#### :house: Internal
+* [#8982](https://github.com/babel/babel/pull/8982) fix publish command [skip ci]. ([@hzoo](https://github.com/hzoo))
+* [#8988](https://github.com/babel/babel/pull/8988) Remove definition of micromatch which was removed.. ([@danez](https://github.com/danez))
+
+## v7.1.5 (2018-11-06)
+
+#### :eyeglasses: Spec Compliancy
+* `babel-parser`, `babylon`
+  * [#7727](https://github.com/babel/babel/pull/7727) Fix await in function name and parameters. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :rocket: New Feature
+* `babel-parser`
+  * [#8828](https://github.com/babel/babel/pull/8828) Typescript: Validate tuple type element positions. ([@Retsam](https://github.com/Retsam))
+  * [#8883](https://github.com/babel/babel/pull/8883) [flow] Add support for parsing `_` as implicit instantiation in call/new. ([@jbrown215](https://github.com/jbrown215))
+* `babel-core`, `babel-generator`, `babel-parser`, `babel-plugin-syntax-typescript`, `babel-traverse`
+  * [#8448](https://github.com/babel/babel/pull/8448) Remove Babylon plugins for features already merged to the ECMAScript spec. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-parser`, `babel-types`
+  * [#8884](https://github.com/babel/babel/pull/8884) [flow] Explicit inexact objects with `...`. ([@jbrown215](https://github.com/jbrown215))
+* `babel-preset-env`
+  * [#8898](https://github.com/babel/babel/pull/8898) Update preset-env data. ([@existentialism](https://github.com/existentialism))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#8956](https://github.com/babel/babel/pull/8956) Do not allow TypeCastExpressions w/o parens . ([@danez](https://github.com/danez))
+  * [#8954](https://github.com/babel/babel/pull/8954) Allow function types in type params within arrow return types. ([@danez](https://github.com/danez))
+  * [#8866](https://github.com/babel/babel/pull/8866) Closes [#8865](https://github.com/babel/babel/issues/8865). ([@byronluk](https://github.com/byronluk))
+* `babel-core`
+  * [#8910](https://github.com/babel/babel/pull/8910) Resolve babel.config.js 'babelrcRoots' values relative to the config file.. ([@loganfsmyth](https://github.com/loganfsmyth))
+  * [#8950](https://github.com/babel/babel/pull/8950) Fix message when plugin of a wrong type is passed. ([@everdimension](https://github.com/everdimension))
+* `babel-plugin-transform-block-scoping`
+  * [#8937](https://github.com/babel/babel/pull/8937) rename colliding let bindings with for loop init. ([@byronluk](https://github.com/byronluk))
+  * [#8914](https://github.com/babel/babel/pull/8914) Treat break inside block inside loop. ([@thiagoarrais](https://github.com/thiagoarrais))
+* `babel-preset-env`
+  * [#8926](https://github.com/babel/babel/pull/8926) preset-env: Edge support for arrow param destructuring. ([@benmosher](https://github.com/benmosher))
+* `babel-generator`
+  * [#8868](https://github.com/babel/babel/pull/8868) fix single-arg async arrows when retainLines=true. ([@ryanwmarsh](https://github.com/ryanwmarsh))
+* `babel-traverse`
+  * [#8880](https://github.com/babel/babel/pull/8880) fix: Expression x === 'y' && '' should not evaluate to undefined.. ([@Cyp](https://github.com/Cyp))
+
+#### :nail_care: Polish
+* [#8873](https://github.com/babel/babel/pull/8873) fixed an extra word. ([@vvyomjjain](https://github.com/vvyomjjain))
+
+## v7.1.4 (2018-10-11)
+
+Just re-published `@babel/traverse` without `**` so that it works in Node 6.
+
+## v7.1.3 (2018-10-11)
+
+#### :bug: Bug Fix
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-typescript`, `babel-types`
+  * [#8720](https://github.com/babel/babel/pull/8720) Typescript - Tuple elements can be optional. ([@Retsam](https://github.com/Retsam))
+* `babel-traverse`
+  * [#8833](https://github.com/babel/babel/pull/8833) Insertafter jsx fix. ([@kevintab95](https://github.com/kevintab95))
+* `babel-parser`
+  * [#8830](https://github.com/babel/babel/pull/8830) Correct handling of newline after async with paren-less arrow func. ([@Retsam](https://github.com/Retsam))
+  * [#8756](https://github.com/babel/babel/pull/8756) class private methods and properties: should not allow spaces between # and identifier. ([@macabeus](https://github.com/macabeus))
+  * [#8804](https://github.com/babel/babel/pull/8804) Fix parsing of slash after class expression. ([@existentialism](https://github.com/existentialism))
+  * [#8767](https://github.com/babel/babel/pull/8767) [decorators] [typescript] Parse type parameters. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#8792](https://github.com/babel/babel/pull/8792) Fix perf issue in typescript parser plugin. ([@matthewrobertson](https://github.com/matthewrobertson))
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-typescript`, `babel-types`
+  * [#8805](https://github.com/babel/babel/pull/8805) Typescript - Tuples can include rest elements. ([@Retsam](https://github.com/Retsam))
+* `babel-types`
+  * [#8791](https://github.com/babel/babel/pull/8791) types: allow jsxEmptyExpression inside jsxExpressionContainer. ([@tvooo](https://github.com/tvooo))
+* `babel-plugin-transform-modules-systemjs`
+  * [#8820](https://github.com/babel/babel/pull/8820) System module format - fixes function hoisting failure case. ([@guybedford](https://github.com/guybedford))
+* `babel-plugin-transform-destructuring`
+  * [#8793](https://github.com/babel/babel/pull/8793) Ensure destructuring's computed key handling matches object-rest-spread. ([@existentialism](https://github.com/existentialism))
+
+## 7.1.2 (2018-09-28)
+
+Same as v7.1.1, except compiled against Node 6 instead of Node 8 by accident (e.g had `async functions`).
+
+## v7.1.1 (2018-09-28)
+
+> EDIT: had a publish issue here as well where it compiled against Node 8 instead of Node 6 so 7.1.2 will fix this.
+> Also force publish `@babel/runtime` and `@babel/runtime-corejs2`. We need to fix the publishing around that since Lerna doesn't pickup the `@babel/helpers` changes as there is no "dependency"
+
+#### :bug: Bug Fix
+* `babel-generator`, `babel-parser`, `babel-types`
+  * [#8755](https://github.com/babel/babel/pull/8755) TypeScript: reserve `unknown` as TSUnknownKeyword. ([@g-plane](https://github.com/g-plane))
+* `babel-plugin-transform-destructuring`
+  * [#8535](https://github.com/babel/babel/pull/8535)  Do not unpack array patterns that update a referenced binding. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-plugin-proposal-decorators`
+  * [#8742](https://github.com/babel/babel/pull/8742) [decorators] Support async and generator methods. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helpers`, `babel-plugin-proposal-decorators`
+  * [#8761](https://github.com/babel/babel/pull/8761) [decorators] Fields are enumerable. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-generator`
+  * [#8751](https://github.com/babel/babel/pull/8751) Fix some missing parens cases with OptionalMemberExpression in generator. ([@existentialism](https://github.com/existentialism))
+  * [#8727](https://github.com/babel/babel/pull/8727) Handle throw expressions in generator. ([@existentialism](https://github.com/existentialism))
+
+#### :house: Internal
+* Other
+  * [#8780](https://github.com/babel/babel/pull/8780) Run test262 tests for exportNamespaceFrom. ([@existentialism](https://github.com/existentialism))
+* `babel-helper-transform-fixture-test-runner`
+  * [#8768](https://github.com/babel/babel/pull/8768) Use babel-check-duplicated-nodes. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.1.0 (2018-09-17)
+
+Check http://babeljs.io/blog/2018/09/17/7.1.0
+
+#### :rocket: New Feature
+* `babel-cli`, `babel-core`
+  * [#8660](https://github.com/babel/babel/pull/8660) Better support monorepos by allowing users to opt into automatically resolving 'root' with `rootMode: "upward"`.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-helper-transform-fixture-test-runner`
+  * [#7582](https://github.com/babel/babel/pull/7582) Allow regular plugins/presets resolution algorithm for packages outsi…. ([@Andarist](https://github.com/Andarist))
+* `babel-helpers`, `babel-plugin-proposal-decorators`, `babel-plugin-syntax-decorators`
+  * [#7976](https://github.com/babel/babel/pull/7976) Add support for the new decorators proposal. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-helpers`, `babel-plugin-proposal-class-properties`
+  * [#8205](https://github.com/babel/babel/pull/8205) Private Static Fields Features: Stage 3. ([@rricard](https://github.com/rricard))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#8698](https://github.com/babel/babel/pull/8698) Fix parsing of newline between 'async' and 'function'. ([@existentialism](https://github.com/existentialism))
+  * [#8677](https://github.com/babel/babel/pull/8677) Fix typescript parsing typed object shorthand methods. ([@existentialism](https://github.com/existentialism))
+* `babel-plugin-transform-typescript`
+  * [#8682](https://github.com/babel/babel/pull/8682) Fix TSParameterProperty getting lost with transform-classes. ([@existentialism](https://github.com/existentialism))
+  * [#8695](https://github.com/babel/babel/pull/8695) Adjust TSParameterProperty handling to work with transform-parameters. ([@existentialism](https://github.com/existentialism))
+  * [#8666](https://github.com/babel/babel/pull/8666) Fix typescript import elision. ([@Retsam](https://github.com/Retsam))
+* `babel-preset-env`
+  * [#8693](https://github.com/babel/babel/pull/8693) Fix es6.string.iterator mapping in babel-preset-env. ([@existentialism](https://github.com/existentialism))
+* `babel-core`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-plugin-transform-runtime`
+  * [#8659](https://github.com/babel/babel/pull/8659) Fix version checks in .availableHelper and transform-runtime definitions.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* Other
+  * [#8627](https://github.com/babel/babel/pull/8627) ts generator: allow reserved keywords in interfaces. ([@43081j](https://github.com/43081j))
+* `babel-plugin-transform-parameters`
+  * [#8414](https://github.com/babel/babel/pull/8414) Allow patterns as argument of RestElement. ([@microbouji](https://github.com/microbouji))
+* `babel-core`, `babel-plugin-transform-runtime`
+  * [#8624](https://github.com/babel/babel/pull/8624) Verify 'sourceMap' option with hasOwnProperty, and verify string-typed 'version'. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-helpers`, `babel-plugin-proposal-class-properties`
+  * [#8614](https://github.com/babel/babel/pull/8614) [static private] Unify loose handling of static and instance props. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :nail_care: Polish
+* `babel-plugin-transform-runtime`
+  * [#8581](https://github.com/babel/babel/pull/8581) Fix grammar in error message at @babel/plugin-transform-runtime. ([@tricknotes](https://github.com/tricknotes))
+* `babel-parser`
+  * [#8576](https://github.com/babel/babel/pull/8576) More helpful errorr message for missing decoratorsBeforeExport in parser. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :memo: Documentation
+* [#8561](https://github.com/babel/babel/pull/8561) Added pronounciation of babel. ([@siddhant1](https://github.com/siddhant1))
+
+#### :house: Internal
+* `babel-core`
+  * [#8714](https://github.com/babel/babel/pull/8714) Fix Flow error with new versionRange test.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* Other
+  * [#8679](https://github.com/babel/babel/pull/8679) remove force publish, temp tag [skip ci]. ([@hzoo](https://github.com/hzoo))
+* `babel-plugin-transform-runtime`
+  * [#8661](https://github.com/babel/babel/pull/8661) Makefile: run fix json on fix. ([@xtuc](https://github.com/xtuc))
+* `babel-*`
+  * [#8658](https://github.com/babel/babel/pull/8658) Format fixture options.json with Prettier.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-parser`
+  * [#8630](https://github.com/babel/babel/pull/8630) Bump flow to 0.80 and fix sourceType error. ([@existentialism](https://github.com/existentialism))
+  * [#8610](https://github.com/babel/babel/pull/8610) types: missing `unambiguous` sourceType. ([@xtuc](https://github.com/xtuc))
+  * [#8170](https://github.com/babel/babel/pull/8170) @babel/parser: expose a TypeScript definition file from package. ([@AviVahl](https://github.com/AviVahl))
+* `babel-*`
+  * [#8573](https://github.com/babel/babel/pull/8573) add access public to all packages [skip ci]. ([@hzoo](https://github.com/hzoo))
+
+## v7.0.1 (2018-09-11)
+
+Doing a quick patch regarding helpers versioning to prevent future issues: https://github.com/babel/babel/pull/8659
+
+## v7.0.0 (2018-08-27)
+
+No change from rc.4. Finally released as https://babeljs.io/blog/2018/08/27/7.0.0!
+
+## v7.0.0-rc.4 (2018-08-27)
+
+> Similar to removing proposals in `@babel/polyfill`, we are removing them in `transform-runtime`
+
+#### :boom: Breaking Change
+* `babel-plugin-transform-runtime`
+  * [#8547](https://github.com/babel/babel/pull/8547) Remove nonstandard functions and fake prototype methods from babel-runtime. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-parser`
+  * [#8539](https://github.com/babel/babel/pull/8539) Update parser whitespace for clarity. ([@jridgewell](https://github.com/jridgewell))
+
+#### :bug: Bug Fix
+* `babel-register`
+  * [#8553](https://github.com/babel/babel/pull/8553) bump source-map-support. ([@hzoo](https://github.com/hzoo))
+* `babel-core`
+  * [#8546](https://github.com/babel/babel/pull/8546) Default highlightCode:true for the parser highlighting.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :house: Internal
+* Other
+  * [#8554](https://github.com/babel/babel/pull/8554) Lerna: remove exact [skip ci]. ([@hzoo](https://github.com/hzoo))
+* `babel-parser`
+  * [#8540](https://github.com/babel/babel/pull/8540) Cleanup getLineInfo. ([@jridgewell](https://github.com/jridgewell))
+  * [#8541](https://github.com/babel/babel/pull/8541) Update to ES6 String methods. ([@jridgewell](https://github.com/jridgewell))
+  * [#8537](https://github.com/babel/babel/pull/8537) Flatten TokenType class hierarchy. ([@jridgewell](https://github.com/jridgewell))
+  * [#8539](https://github.com/babel/babel/pull/8539) Update parser whitespace for clarity. ([@jridgewell](https://github.com/jridgewell))
+
+## v7.0.0-rc.3 (2018-08-24)
+
+#### :boom: Breaking Change
+* `babel-preset-env`
+  * [#8509](https://github.com/babel/babel/pull/8509) Add browserslist 4 support.. ([@yavorsky](https://github.com/yavorsky))
+* `babel-plugin-transform-runtime`
+  * [#8518](https://github.com/babel/babel/pull/8518) Make 'useESModules' only toggle CJS vs ESM helpers when importing file is ESM.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :rocket: New Feature
+* `babel-plugin-transform-runtime`
+  * [#8520](https://github.com/babel/babel/pull/8520) Expose opt-in useESModules:"auto" from transform-runtime to toggle based on 'supportsStaticESM'. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :bug: Bug Fix
+* `babel-helpers`, `babel-plugin-transform-classes`, `babel-preset-env`
+  * [#8501](https://github.com/babel/babel/pull/8501) [_wrapNativeSuper] Don't wrap non-native constructors. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-generator`, `babel-traverse`, `babel-types`
+  * [#8478](https://github.com/babel/babel/pull/8478) Fix path.scope.rename() to not change break clauses. ([@rafeca](https://github.com/rafeca))
+* `babel-plugin-proposal-object-rest-spread`
+  * [#8514](https://github.com/babel/babel/pull/8514) fix: object rest with default values bug. ([@jquense](https://github.com/jquense))
+* `babel-traverse`
+  * [#8505](https://github.com/babel/babel/pull/8505) Rename exported functions where name conflicts with param.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :house: Internal
+* `babel-plugin-transform-object-set-prototype-of-to-assign`
+  * [#8409](https://github.com/babel/babel/pull/8409) Add LICENSE file to published npm packages [skip ci]. ([@opichals](https://github.com/opichals))
+* Other
+  * [#8504](https://github.com/babel/babel/pull/8504) Update Babel to rc.2. ([@hzoo](https://github.com/hzoo))
+
+## v7.0.0-rc.2 (2018-08-21)
+
+A notable change is the addition of https://github.com/babel/babel/pull/8485 which enables https://github.com/babel/babel-loader/pull/660 (automatically doing `modules: false` for `@babel/preset-env` when using `babel-loader`. 
+
+#### :boom: Breaking Change
+* `babel-core`
+  * [#8470](https://github.com/babel/babel/pull/8470) Remove File#resolveModuleSource. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+  * [#8473](https://github.com/babel/babel/pull/8473) Allow babel-plugin/preset prefix to not be a prefix, when used in a scope.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-core`, `babel-parser`, `babel-plugin-syntax-decorators`
+  * [#8465](https://github.com/babel/babel/pull/8465) Require decoratorsBeforeExport option for decorators. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+#### :rocket: New Feature
+* `babel-preset-env`
+  * [#8500](https://github.com/babel/babel/pull/8500) Add missing es7.promise.finally polyfill when using useBuiltIns: usage. ([@jsnajdr](https://github.com/jsnajdr))
+* `babel-cli`, `babel-core`, `babel-node`, `babel-preset-env`, `babel-register`
+  * [#8485](https://github.com/babel/babel/pull/8485) Allow preset-env to toggle module handling based on flags from the caller (like babel-loader). ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-core`
+  * [#8474](https://github.com/babel/babel/pull/8474) Preserve 'false'-options for disabled plugins/presets.. ([@loganfsmyth](https://github.com/loganfsmyth))
+  * [#8473](https://github.com/babel/babel/pull/8473) Allow babel-plugin/preset prefix to not be a prefix, when used in a scope.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-helper-transform-fixture-test-runner`, `babel-plugin-transform-runtime`
+  * [#8435](https://github.com/babel/babel/pull/8435) Allow transform-runtime to insert runtime references with absolute paths.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :bug: Bug Fix
+* `babel-parser`
+  * [#8488](https://github.com/babel/babel/pull/8488) Fix trailingComments for FunctionExpression that is CallExpression arguments. ([@jiaxuan](https://github.com/jiaxuan))
+* `babel-core`
+  * [#8493](https://github.com/babel/babel/pull/8493) Take top-level config source into consideration when processing nested env/overrides.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-helpers`, `babel-plugin-proposal-decorators`
+  * [#7429](https://github.com/babel/babel/pull/7429) Fix default descriptor setting for class properties with decorators. ([@yhpark](https://github.com/yhpark))
+* `babel-plugin-transform-parameters`
+  * [#8479](https://github.com/babel/babel/pull/8479) Fixes setter paratemer default value. ([@nikolayemrikh](https://github.com/nikolayemrikh))
+
+#### :nail_care: Polish
+* `babel-core`
+  * [#8494](https://github.com/babel/babel/pull/8494) Cache individual programmatic descriptors along with the overall list.. ([@loganfsmyth](https://github.com/loganfsmyth))
+  * [#8493](https://github.com/babel/babel/pull/8493) Take top-level config source into consideration when processing nested env/overrides.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :house: Internal
+* `babel-core`
+  * [#8493](https://github.com/babel/babel/pull/8493) Take top-level config source into consideration when processing nested env/overrides.. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-plugin-transform-classes`
+  * [#8472](https://github.com/babel/babel/pull/8472) Remove unused file. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+
+## v7.0.0-rc.1 (2018-08-09)
+
+Same as rc.0 but fixes the peerDep issue #8443. It's changed to just be ^7.0.0-0
+
+## v7.0.0-rc.0 (2018-08-09)
+
+> This had an issue with `peerDependencies` so please use `rc.1`.
+
+Alright finally at the end 🙂. Shouldn't have anymore breaking changes and going to wait some time to fix bugs/regressions
+
+> Summary: `@babel/polyfill` will not include proposal polyfills by default and fixed a regression.
+
+#### :boom: Breaking Change
+* `babel-polyfill`
+  * [#8440](https://github.com/babel/babel/pull/8440) remove proposals polyfills from default import [skip ci]. ([@hzoo](https://github.com/hzoo))
+
+> Will add this to the upgrade guide/polyfill docs. I guess we could include a `babel-upgrade` for this too, not sure.
+
+#### :bug: Bug Fix
+* `babel-cli`
+  * [#8436](https://github.com/babel/babel/pull/8436) Require v1.1.0 so that correct filter params are passed.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+## v7.0.0-beta.56 (2018-08-03)
+
+- Separate `@babel/runtime`: should work for helpers alone and opt-into core-js if necessary.
+- More details in http://babeljs.io/docs/en/next/babel-runtime, http://babeljs.io/docs/en/next/babel-plugin-transform-runtime (via https://github.com/babel/babel/pull/8266, https://github.com/babel/website/pull/1714)
+- `babel-upgrade` issue: https://github.com/babel/babel-upgrade/issues/70
+
+#### :boom: Breaking Change
+* `babel-plugin-transform-regenerator`, `babel-plugin-transform-runtime`, `babel-runtime-corejs2`, `babel-runtime`
+  * [#8266](https://github.com/babel/babel/pull/8266) Split @babel/runtime into 2 modules via @babel/runtime-corejs2. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-core`, `babel-helper-module-imports`, `babel-helpers`, `babel-plugin-external-helpers`, `babel-plugin-transform-runtime`
+  * [#8398](https://github.com/babel/babel/pull/8398) Only reference helpers from external/runtime helpers if they are known to be available.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :rocket: New Feature
+* `babel-plugin-transform-regenerator`, `babel-plugin-transform-runtime`, `babel-runtime-corejs2`, `babel-runtime`
+  * [#8266](https://github.com/babel/babel/pull/8266) Split @babel/runtime into 2 modules via @babel/runtime-corejs2. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :bug: Bug Fix
+* `babel-parser`, `babel-plugin-transform-typescript`
+  * [#8408](https://github.com/babel/babel/pull/8408) Allow TSInterfaceDeclaration to be default export. ([@existentialism](https://github.com/existentialism))
+* `babel-preset-env`
+  * [#8403](https://github.com/babel/babel/pull/8403) Ensure esmodule targets are parsed by browserslist. ([@existentialism](https://github.com/existentialism))
+* Other
+  * [#8024](https://github.com/babel/babel/pull/8024) Run transform-runtime on the standalone bundle so it stays ES5-compatible.. ([@loganfsmyth](https://github.com/loganfsmyth))
+
+#### :memo: Documentation
+* [#8412](https://github.com/babel/babel/pull/8412) Update Documentation[skip ci]. ([@leongjiameng](https://github.com/leongjiameng))
+
+## v7.0.0-beta.55 (2018-07-28)
+
+Breaking Change in beta:
+
+> Throws an error on using Stage presets: https://babeljs.io/blog/2018/07/27/removing-babels-stage-presets
+
+#### :boom: Breaking Change
+* `babel-core`, `babel-plugin-proposal-class-properties`, `babel-plugin-proposal-decorators`, `babel-preset-stage-0`, `babel-preset-stage-1`, `babel-preset-stage-2`, `babel-preset-stage-3`, `babel-standalone`
+  * [#8293](https://github.com/babel/babel/pull/8293) Remove Stage presets. ([@hzoo](https://github.com/hzoo))
+
+#### :rocket: New Feature
+* `babel-generator`, `babel-parser`, `babel-plugin-transform-typescript`, `babel-types`
+  * [#7754](https://github.com/babel/babel/pull/7754) TypeScript: Support type arguments on tagged templates. ([@andy-ms](https://github.com/andy-ms))
+
+#### :bug: Bug Fix
+* `babel-cli`, `babel-core`, `babel-generator`
+  * [#8380](https://github.com/babel/babel/pull/8380) Ensure that Identifier source mappings explicitly start and stop on the generated range. ([@loganfsmyth](https://github.com/loganfsmyth))
+* `babel-preset-env`
+  * [#8391](https://github.com/babel/babel/pull/8391) Ensure preset-env doesn't clobber browserslist defaults. ([@existentialism](https://github.com/existentialism))
+* `babel-core`
+  * [#8376](https://github.com/babel/babel/pull/8376) Fix order of optional argument reordering. ([@Qix-](https://github.com/Qix-))
+  * [#8381](https://github.com/babel/babel/pull/8381) Allow an Array for `babelrcRoots`.. ([@wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg))
+  * [#8342](https://github.com/babel/babel/pull/8342) Do not mutate ast. ([@thiagoarrais](https://github.com/thiagoarrais))
+* `babel-parser`
+  * [#8374](https://github.com/babel/babel/pull/8374) Correctly parse interface methods named 'static'. ([@bakkot](https://github.com/bakkot))
+
+#### :nail_care: Polish
+* `babel-parser`
+  * [#8355](https://github.com/babel/babel/pull/8355) remove .then from `dynamic import` parser exception message. ([@dnalborczyk](https://github.com/dnalborczyk))
+
+#### :house: Internal
+* `babel-core`, `babel-preset-stage-0`, `babel-preset-stage-1`, `babel-preset-stage-2`, `babel-preset-stage-3`, `babel-standalone`
+  * [#8397](https://github.com/babel/babel/pull/8397) Remove our own use of stage presets. ([@hzoo](https://github.com/hzoo))
+* `babel-helpers`, `babel-plugin-proposal-class-properties`
+  * [#8318](https://github.com/babel/babel/pull/8318) Save full descriptor instead of only value for private fields.. ([@nicolo-ribaudo](https://github.com/nicolo-ribaudo))
+* `babel-core`
+  * [#8381](https://github.com/babel/babel/pull/8381) Allow an Array for `babelrcRoots`.. ([@wtgtybhertgeghgtwtg](https://github.com/wtgtybhertgeghgtwtg))
+* `babel-cli`, `babel-core`, `babel-generator`, `babel-helper-define-map`, `babel-helper-fixtures`, `babel-helper-module-imports`, `babel-helper-module-transforms`, `babel-helper-regex`, `babel-helper-simple-access`, `babel-helper-transform-fixture-test-runner`, `babel-node`, `babel-plugin-transform-block-scoping`, `babel-register`, `babel-template`, `babel-traverse`, `babel-types`
+  * [#8377](https://github.com/babel/babel/pull/8377) Bumped lodash to 4.17.10. ([@Berkmann18](https://github.com/Berkmann18))
+
 ## v7.0.0-beta.54 (2018-07-16)
 
 > Regarding https://github.com/babel/babel/issues/8184, we aren't using `micromatch` for paths, just basic `*/**` substitution now. For anything more complicated we will recommend using a regex/`.js` config.
@@ -2261,7 +3100,7 @@ Also started Babel to compile itself with Babel 7! (We'll be working on making i
 
 #### :nail_care: Polish
 * `babel-register`
-  * [#5411](https://github.com/babel/babel/pull/5411) Seperate version env cache files. ([@pwmckenna](https://github.com/pwmckenna))
+  * [#5411](https://github.com/babel/babel/pull/5411) Separate version env cache files. ([@pwmckenna](https://github.com/pwmckenna))
 
 #### :memo: Documentation
 * `babel-plugin-transform-runtime`

CODE_OF_CONDUCT.md

@@ -55,7 +55,7 @@ further defined and clarified by project maintainers.
 ## Enforcement
 
 Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting hzoo, thejameskyle, sebastian, or loganfsmyth on [Slack](https://slack.babeljs.io/). All
+reported by contacting Henry Zhu <hi@henryzoo.com>, Logan Smyth <loganfsmyth@gmail.com> or one of the other [Babel core team members](https://babeljs.io/team). All
 complaints will be reviewed and investigated and will result in a response that
 is deemed necessary and appropriate to the circumstances. The project team is
 obligated to maintain confidentiality with regard to the reporter of an incident.

CONTRIBUTING.md

@@ -24,7 +24,7 @@ contributing, please read the
 ## Not sure where to start?
 
 - If you aren't just making a documentation change, you'll probably want to learn a bit about a few topics.
- - [ASTs](https://en.wikipedia.org/wiki/Abstract_syntax_tree) (Abstract Syntax Tree): The Babel AST [spec](https://github.com/babel/babel/blob/master/packages/babel-parser/ast/spec.md) is a bit different from [ESTree](https://github.com/estree/estree). The differences are listed [here](https://github.com/babel/babel/tree/master/packages/babel-parser#output).
+ - [ASTs](https://en.wikipedia.org/wiki/Abstract_syntax_tree) (Abstract Syntax Tree): The Babel AST [spec](https://github.com/babel/babel/blob/master/packages/babel-parser/ast/spec.md) is a bit different from [ESTree](https://github.com/estree/estree). The differences are listed [here](https://babeljs.io/docs/en/next/babel-parser.html#output).
  - Check out [`/doc`](https://github.com/babel/babel/tree/master/doc) for information about Babel's internals
  - Check out [the Babel Plugin Handbook](https://github.com/thejameskyle/babel-handbook/blob/master/translations/en/plugin-handbook.md#babel-plugin-handbook) - core plugins are written the same way as any other plugin!
  - Check out [AST Explorer](http://astexplorer.net/#/scUfOmVOG5) to learn more about ASTs or make your own plugin in the browser
@@ -310,7 +310,7 @@ Note that the code shown in Chrome DevTools is compiled code and therefore diffe
 - Create a new issue that describes the proposal (ex: [#538](https://github.com/babel/babylon/issues/538)). Include any relevant information like proposal repo/author, examples, parsing approaches, meeting notes, presentation slides, and more.
 - The pull request should include:
   - [ ] An update to the [plugins](https://github.com/babel/babel/tree/master/packages/babel-parser#plugins) part of the readme. Add a new entry to that list for the new plugin flag (and link to the proposal)
-  - [ ] If any new nodes or modifications need to be added to the AST, update [ast/spec.md](https://github.com/babel/babel/bloc/master/packages/babel-parser/ast/spec.md)
+  - [ ] If any new nodes or modifications need to be added to the AST, update [ast/spec.md](https://github.com/babel/babel/blob/master/packages/babel-parser/ast/spec.md)
   - [ ] Make sure you use the `this.hasPlugin("plugin-name-here")` check in the babel parser so that your new plugin code only runs when that flag is turned on (not default behavior)
   - [ ] Add failing/passing tests according to spec behavior
 - Start working about the Babel transform itself!

Gulpfile.js

@@ -6,19 +6,16 @@ const chalk = require("chalk");
 const newer = require("gulp-newer");
 const babel = require("gulp-babel");
 const gulpWatch = require("gulp-watch");
-const gutil = require("gulp-util");
+const fancyLog = require("fancy-log");
 const filter = require("gulp-filter");
 const gulp = require("gulp");
 const path = require("path");
 const webpack = require("webpack");
 const merge = require("merge-stream");
-const rollup = require("rollup-stream");
-const source = require("vinyl-source-stream");
-const buffer = require("vinyl-buffer");
+const rollup = require("rollup");
 const rollupBabel = require("rollup-plugin-babel");
 const rollupNodeResolve = require("rollup-plugin-node-resolve");
-const registerStandalonePackageTask = require("./scripts/gulp-tasks")
-  .registerStandalonePackageTask;
+const { registerStandalonePackageTask } = require("./scripts/gulp-tasks");
 
 const sources = ["codemods", "packages"];
 
@@ -36,13 +33,9 @@ function getIndexFromPackage(name) {
   return `${name}/src/index.js`;
 }
 
-function compilationLogger(rollup) {
+function compilationLogger() {
   return through.obj(function(file, enc, callback) {
-    gutil.log(
-      `Compiling '${chalk.cyan(file.relative)}'${
-        rollup ? " with rollup " : ""
-      }...`
-    );
+    fancyLog(`Compiling '${chalk.cyan(file.relative)}'...`);
     callback(null, file);
   });
 }
@@ -50,7 +43,7 @@ function compilationLogger(rollup) {
 function errorsLogger() {
   return plumber({
     errorHandler(err) {
-      gutil.log(err.stack);
+      fancyLog(err.stack);
     },
   });
 }
@@ -91,32 +84,36 @@ function buildBabel(exclude) {
 }
 
 function buildRollup(packages) {
-  return merge(
+  return Promise.all(
     packages.map(pkg => {
-      return rollup({
-        input: getIndexFromPackage(pkg),
-        format: "cjs",
-        plugins: [
-          rollupBabel({
-            envName: "babel-parser",
-          }),
-          rollupNodeResolve(),
-        ],
-      })
-        .pipe(source("index.js"))
-        .pipe(buffer())
-        .pipe(errorsLogger())
-        .pipe(compilationLogger(/* rollup */ true))
-        .pipe(gulp.dest(path.join(pkg, "lib")));
+      const input = getIndexFromPackage(pkg);
+      fancyLog(`Compiling '${chalk.cyan(input)}' with rollup ...`);
+      return rollup
+        .rollup({
+          input,
+          plugins: [
+            rollupBabel({
+              envName: "babel-parser",
+            }),
+            rollupNodeResolve(),
+          ],
+        })
+        .then(bundle => {
+          return bundle.write({
+            file: path.join(pkg, "lib/index.js"),
+            format: "cjs",
+            name: "babel-parser",
+          });
+        });
     })
   );
 }
 
-gulp.task("build", function() {
-  const bundles = ["packages/babel-parser"];
+const bundles = ["packages/babel-parser"];
 
-  return merge([buildBabel(/* exclude */ bundles), buildRollup(bundles)]);
-});
+gulp.task("build-rollup", () => buildRollup(bundles));
+gulp.task("build-babel", () => buildBabel(/* exclude */ bundles));
+gulp.task("build", gulp.parallel("build-rollup", "build-babel"));
 
 gulp.task("default", gulp.series("build"));
 
@@ -138,7 +135,7 @@ registerStandalonePackageTask(
   "babel",
   "Babel",
   path.join(__dirname, "packages"),
-  require("./packages/babel-core/package.json").version
+  require("./packages/babel-standalone/package.json").version
 );
 
 const presetEnvWebpackPlugins = [
@@ -167,6 +164,6 @@ registerStandalonePackageTask(
   "babel-preset-env",
   "babelPresetEnv",
   path.join(__dirname, "packages"),
-  require("./packages/babel-preset-env/package.json").version,
+  require("./packages/babel-preset-env-standalone/package.json").version,
   presetEnvWebpackPlugins
 );

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2014-2018 Sebastian McKenzie <sebmck@gmail.com>
+Copyright (c) 2014-present Sebastian McKenzie and other contributors
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

Makefile

@@ -1,6 +1,6 @@
 MAKEFLAGS = -j1
-FLOW_COMMIT = bea8b83f50f597454941d2a7ecef6e93a881e576
-TEST262_COMMIT = f90a52b39609a620c0854e0bd0b3a906c930fd17
+FLOW_COMMIT = 2ac56861e3ceff9ca406ae586fbafb3480c6c0b7
+TEST262_COMMIT = de567d3aa5de4eaa11e00131d26b9fe77997dfb0
 
 # Fix color output until TravisCI fixes https://github.com/travis-ci/travis-ci/issues/7967
 export FORCE_COLOR = true
@@ -11,12 +11,13 @@ SOURCES = packages codemods
 
 build: clean clean-lib
 	./node_modules/.bin/gulp build
+	node ./packages/babel-standalone/scripts/generate.js
 	node ./packages/babel-types/scripts/generateTypeHelpers.js
 	# call build again as the generated files might need to be compiled again.
 	./node_modules/.bin/gulp build
 	# generate flow and typescript typings
-	node scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
-	node scripts/generators/typescript.js > ./packages/babel-types/lib/index.d.ts
+	node packages/babel-types/scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
+	node packages/babel-types/scripts/generators/typescript.js > ./packages/babel-types/lib/index.d.ts
 ifneq ("$(BABEL_COVERAGE)", "true")
 	make build-standalone
 	make build-preset-env-standalone
@@ -28,6 +29,12 @@ build-standalone:
 build-preset-env-standalone:
 	./node_modules/.bin/gulp build-babel-preset-env-standalone
 
+prepublish-build-standalone:
+	BABEL_ENV=production IS_PUBLISH=true ./node_modules/.bin/gulp build-babel-standalone
+
+prepublish-build-preset-env-standalone:
+	BABEL_ENV=production IS_PUBLISH=true ./node_modules/.bin/gulp build-babel-preset-env-standalone
+
 build-dist: build
 	cd packages/babel-polyfill; \
 	scripts/build-dist.sh
@@ -40,19 +47,24 @@ watch: clean clean-lib
 	# development too.
 	BABEL_ENV=development ./node_modules/.bin/gulp build-no-bundle
 	node ./packages/babel-types/scripts/generateTypeHelpers.js
-	node scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
+	node packages/babel-types/scripts/generators/flow.js > ./packages/babel-types/lib/index.js.flow
+	node packages/babel-types/scripts/generators/typescript.js > ./packages/babel-types/lib/index.d.ts
 	BABEL_ENV=development ./node_modules/.bin/gulp watch
 
 flow:
 	./node_modules/.bin/flow check --strip-root
 
 lint:
-	./node_modules/.bin/eslint scripts $(SOURCES) '*.js' --format=codeframe --rulesdir="./scripts/eslint_rules"
+	./node_modules/.bin/eslint scripts $(SOURCES) '*.js' --format=codeframe
 
-fix:
-	./node_modules/.bin/eslint scripts $(SOURCES) '*.js' --format=codeframe --fix --rulesdir="./scripts/eslint_rules"
+fix: fix-json
+	./node_modules/.bin/eslint scripts $(SOURCES) '*.js' --format=codeframe --fix
+
+fix-json:
+	./node_modules/.bin/prettier "{packages,codemod}/*/test/fixtures/**/options.json" --write --loglevel warn
 
 clean: test-clean
+	rm -f .npmrc
 	rm -rf packages/babel-polyfill/browser*
 	rm -rf packages/babel-polyfill/dist
 	rm -rf coverage
@@ -79,7 +91,7 @@ test-ci-coverage:
 bootstrap-flow:
 	rm -rf ./build/flow
 	mkdir -p ./build
-	git clone --branch=master --single-branch --shallow-since=2017-01-01 https://github.com/facebook/flow.git ./build/flow
+	git clone --branch=master --single-branch --shallow-since=2018-11-01 https://github.com/facebook/flow.git ./build/flow
 	cd build/flow && git checkout $(FLOW_COMMIT)
 
 test-flow:
@@ -93,7 +105,7 @@ test-flow-update-whitelist:
 bootstrap-test262:
 	rm -rf ./build/test262
 	mkdir -p ./build
-	git clone --branch=master --single-branch --shallow-since=2017-01-01 https://github.com/tc39/test262.git ./build/test262
+	git clone --branch=master --single-branch --shallow-since=2019-01-01 https://github.com/tc39/test262.git ./build/test262
 	cd build/test262 && git checkout $(TEST262_COMMIT)
 
 test-test262:
@@ -104,22 +116,47 @@ test-test262-ci: bootstrap test-test262
 test-test262-update-whitelist:
 	node scripts/tests/test262/run_babel_parser_test262.js --update-whitelist
 
-publish:
-	git pull --rebase
+clone-license:
+	./scripts/clone-license.sh
+
+prepublish-build:
 	make clean-lib
 	rm -rf packages/babel-runtime/helpers
 	rm -rf packages/babel-runtime-corejs2/helpers
 	rm -rf packages/babel-runtime-corejs2/core-js
 	BABEL_ENV=production make build-dist
+	make clone-license
+
+prepublish:
+	make bootstrap-only
+	make prepublish-build
 	make test
-	# not using lerna independent mode atm, so only update packages that have changed since we use ^
-	# --only-explicit-updates
-	./node_modules/.bin/lerna publish --force-publish=* --exact --skip-temp-tag
+
+new-version:
+	git pull --rebase
+	./node_modules/.bin/lerna version --force-publish="@babel/runtime,@babel/runtime-corejs2,@babel/runtime-corejs3,@babel/standalone,@babel/preset-env-standalone"
+
+# NOTE: Run make new-version first
+publish: prepublish
+	./node_modules/.bin/lerna publish from-git --require-scripts
 	make clean
 
-bootstrap: clean-all
+publish-ci: prepublish
+ifneq ("$(NPM_TOKEN)", "")
+	echo "//registry.npmjs.org/:_authToken=${NPM_TOKEN}" > .npmrc
+else
+	echo "Missing NPM_TOKEN env var"
+	exit 1
+endif
+	./node_modules/.bin/lerna publish from-git --require-scripts --yes
+	rm -f .npmrc
+	make clean
+
+bootstrap-only: clean-all
 	yarn --ignore-engines
 	./node_modules/.bin/lerna bootstrap -- --ignore-engines
+
+bootstrap: bootstrap-only
 	make build
 	cd packages/babel-plugin-transform-runtime; \
 	node scripts/build-dist.js

README.md

@@ -8,12 +8,16 @@
   The compiler for writing next generation JavaScript.
 </p>
 
+<p align="center">
+    <a href="https://www.npmjs.com/package/@babel/core"><img alt="v7 npm Downloads" src="https://img.shields.io/npm/dm/@babel/core.svg?maxAge=43200&label=v7%20downloads"></a>
+  <a href="https://www.npmjs.com/package/babel-core"><img alt="v6 npm Downloads" src="https://img.shields.io/npm/dm/babel-core.svg?maxAge=43200&label=v6%20downloads"></a>
+</p>
 <p align="center">
   <a href="https://travis-ci.org/babel/babel"><img alt="Travis Status" src="https://img.shields.io/travis/babel/babel/master.svg?label=travis&maxAge=43200"></a>
   <a href="https://circleci.com/gh/babel/babel"><img alt="CircleCI Status" src="https://img.shields.io/circleci/project/github/babel/babel/master.svg?label=circle&maxAge=43200"></a>
   <a href="https://codecov.io/github/babel/babel"><img alt="Coverage Status" src="https://img.shields.io/codecov/c/github/babel/babel/master.svg?maxAge=43200"></a>
   <a href="https://slack.babeljs.io/"><img alt="Slack Status" src="https://slack.babeljs.io/badge.svg"></a>
-  <a href="https://www.npmjs.com/package/babel-core"><img alt="npm Downloads" src="https://img.shields.io/npm/dm/babel-core.svg?maxAge=43200"></a>
+  <a href="https://twitter.com/intent/follow?screen_name=babeljs"><img alt="Follow on Twitter" src="https://img.shields.io/twitter/follow/babeljs.svg?style=social&label=Follow"></a>
 </p>
 
 <h2 align="center">Supporting Babel</h2>
@@ -24,14 +28,14 @@
   <a href="https://medium.com/friendship-dot-js/i-peeked-into-my-node-modules-directory-and-you-wont-believe-what-happened-next-b89f63d21558"><img alt="Business Strategy Status" src="https://img.shields.io/badge/business%20model-flavortown-green.svg"></a>
 </p>
 
-Babel is a community-driven project used by many companies and projects, and is maintained by a group of [volunteers](https://babeljs.io/team). If you'd like to help support the future of the project, please consider:
+Babel (pronounced ["babble"](https://soundcloud.com/sebmck/how-to-pronounce-babel))  is a community-driven project used by many companies and projects, and is maintained by a group of [volunteers](https://babeljs.io/team). If you'd like to help support the future of the project, please consider:
 
 - Giving developer time on the project. (Message us on [Twitter](https://twitter.com/babeljs) or [Slack](https://slack.babeljs.io/) for guidance!)
-- Giving funds by becoming a sponsor (see below)!
+- Giving funds by becoming a sponsor on [Open Collective](https://opencollective.com/babel) or [Patreon](https://www.patreon.com/henryzhu)!
 
-## Open Collective Sponsors
+## Sponsors
 
-Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/babel#sponsor)]
+Our top sponsors are shown below! [[Become a sponsor](https://opencollective.com/babel#sponsor)]
 
 <a href="https://opencollective.com/babel/sponsor/0/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/0/avatar.svg"></a>
 <a href="https://opencollective.com/babel/sponsor/1/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/1/avatar.svg"></a>
@@ -48,31 +52,6 @@ Become a sponsor and get your logo on our README on Github with a link to your s
   <a href="https://opencollective.com/babel/sponsor/12/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/12/avatar.svg"></a>
   <a href="https://opencollective.com/babel/sponsor/13/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/13/avatar.svg"></a>
   <a href="https://opencollective.com/babel/sponsor/14/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/14/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/15/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/15/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/16/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/16/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/17/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/17/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/18/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/18/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/19/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/19/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/20/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/20/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/21/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/21/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/22/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/22/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/23/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/23/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/24/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/24/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/25/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/25/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/26/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/26/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/27/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/27/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/28/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/28/avatar.svg"></a>
-  <a href="https://opencollective.com/babel/sponsor/29/website" target="_blank"><img src="https://opencollective.com/babel/sponsor/29/avatar.svg"></a>
-
-## Patreon Sponsors
-
-Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://www.patreon.com/henryzhu)]
-
-## Bronze
-
-<a href="http://teamextension.io/" target="_blank"><img src="https://teamextension.io/dist/img/logo/te-logo-compact.png" height="64"></a>
-<a href="https://webflow.com/" target="_blank"><img src="https://opencollective.com/proxy/images/?src=https%3A%2F%2Fopencollective-production.s3-us-west-1.amazonaws.com%2F4a5024b0-8cf2-11e7-b1a2-b30b1de1463c.png&height=64"></a>
-<p><a href="https://twitter.com/mikesherov">Mike Sherov</a></p>
 
 ## Intro
 
@@ -99,11 +78,11 @@ Try it out at our [REPL](https://babeljs.io/repl/build/master#?code_lz=NoRgNATGD
 
 ### Who maintains Babel?
 
-Mostly a handful of volunteers! Please check out our [team page](https://babeljs.io/team)!
+Mostly a handful of volunteers, funded by you! Please check out our [team page](https://babeljs.io/team)!
 
 ### Looking for support?
 
-For questions and support please visit join our [Slack Community](https://slack.babeljs.io/) (you can sign-up [here](https://slack.babeljs.io/) for an invite), ask a question on [Stack Overflow](https://stackoverflow.com/questions/tagged/babeljs), or ping us on [Twitter](https://twitter.com/babeljs).
+For questions and support please join our [Slack Community](https://slack.babeljs.io/) (you can sign-up [here](https://slack.babeljs.io/) for an invite), ask a question on [Stack Overflow](https://stackoverflow.com/questions/tagged/babeljs), or ping us on [Twitter](https://twitter.com/babeljs).
 
 ### Is there a Babel song?
 

SONG.md

@@ -19,7 +19,8 @@ Generators, const and let
 I used them all without regret  
 And it’s a terse and a destructured Hallelujah  
 
-Hallelujah etc.
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Well my faith was strong but I needed proof  
 The standard was my source of truth  
@@ -28,7 +29,9 @@ So even though you weren’t impressed
 I checked the build against the spec  
 And it’s a more-or-less compliant Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Now you say the build step’s too complex  
 And you claim no need for ES Next  
@@ -37,7 +40,9 @@ But your code grows older with each line
 It’s a joyless dirge on a withered vine  
 It’s a threnody for a bygone Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Yes I learned about the danger signs  
 How they’d polyfilled a thousand lines  
@@ -46,7 +51,9 @@ Still I disregarded common sense
 Now my source is small but the build’s immense  
 And it’s a slow and unresponsive Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 There was a time when they let me know  
 What’s really going on below  
@@ -55,7 +62,9 @@ And debugging’s not a progress march
 It’s a frenzied fumble in the dark  
 It’s a labyrinthine search for Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 Well, maybe there’s a god up there  
 But all I ever got from prayers  
@@ -64,6 +73,8 @@ And that anguished cry you hear at night
 Is the plugin I forgot to write  
 It’s a cold and it’s a broken Hallelujah  
 
-Hallelujah etc.
+
+Hallelujah, Hallelujah  
+Hallelujah, Hallelujah
 
 [Angus Croll](https://github.com/angus-c)  

babel.config.js

@@ -5,21 +5,26 @@ module.exports = function(api) {
 
   const includeCoverage = process.env.BABEL_COVERAGE === "true";
 
-  const envOpts = {
+  const envOptsNoTargets = {
     loose: true,
     modules: false,
     exclude: ["transform-typeof-symbol"],
   };
+  const envOpts = Object.assign({}, envOptsNoTargets);
 
   let convertESM = true;
   let ignoreLib = true;
   let includeRuntime = false;
+  const nodeVersion = "6.9";
 
   switch (env) {
     // Configs used during bundling builds.
     case "babel-parser":
       convertESM = false;
       ignoreLib = false;
+      envOpts.targets = {
+        node: nodeVersion,
+      };
       break;
     case "standalone":
       convertESM = false;
@@ -29,7 +34,7 @@ module.exports = function(api) {
     case "production":
       // Config during builds before publish.
       envOpts.targets = {
-        node: "6.9",
+        node: nodeVersion,
       };
       break;
     case "development":
@@ -93,6 +98,11 @@ module.exports = function(api) {
           convertESM ? "@babel/transform-modules-commonjs" : null,
         ].filter(Boolean),
       },
+      {
+        test: "./packages/babel-polyfill",
+        presets: [["@babel/env", envOptsNoTargets]],
+        plugins: [["@babel/transform-modules-commonjs", { lazy: false }]],
+      },
       {
         // The vast majority of our src files are modules, but we use
         // unambiguous to keep things simple until we get around to renaming
@@ -111,9 +121,11 @@ module.exports = function(api) {
           "packages/babel-runtime",
           /[\\/]node_modules[\\/](?:@babel\/runtime|babel-runtime|core-js)[\\/]/,
         ],
-        plugins: [includeRuntime ? "@babel/transform-runtime" : null].filter(
-          Boolean
-        ),
+        plugins: [
+          includeRuntime
+            ? ["@babel/transform-runtime", { version: "7.4.0" }]
+            : null,
+        ].filter(Boolean),
       },
     ].filter(Boolean),
   };

codecov.yml

@@ -8,3 +8,5 @@ coverage:
         target: "80%"
     patch:
       enabled: false
+ignore:
+  - packages/babel-types/src/*/generated/index.js

codemods/babel-plugin-codemod-object-assign-to-object-spread/README.md

@@ -36,7 +36,7 @@ npm install --save-dev @babel/plugin-codemod-object-assign-to-object-spread
 
 **.babelrc**
 
-```json
+```jsonc
 {
   "plugins": ["@babel/plugin-codemod-object-assign-to-object-spread"]
 }

codemods/babel-plugin-codemod-object-assign-to-object-spread/package.json

@@ -1,23 +1,26 @@
 {
   "name": "@babel/plugin-codemod-object-assign-to-object-spread",
-  "version": "7.0.0-beta.56",
+  "version": "7.0.0",
   "description": "Transforms Object.assign into object spread syntax",
   "repository": "https://github.com/babel/babel/tree/master/codemods/babel-plugin-codemod-object-assign-to-object-spread",
   "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
   "main": "lib/index.js",
   "keywords": [
     "@babel/codemod",
     "@babel/plugin"
   ],
   "dependencies": {
-    "@babel/plugin-syntax-object-rest-spread": "7.0.0-beta.56"
+    "@babel/plugin-syntax-object-rest-spread": "^7.0.0"
   },
   "peerDependencies": {
-    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
+    "@babel/core": "^7.0.0-0"
   },
   "devDependencies": {
-    "@babel/core": "7.0.0-beta.56",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.56"
+    "@babel/core": "^7.0.0",
+    "@babel/helper-plugin-test-runner": "^7.0.0"
   },
   "publishConfig": {
     "access": "public"

codemods/babel-plugin-codemod-optional-catch-binding/README.md

@@ -34,7 +34,7 @@ npm install --save-dev @babel/plugin-codemod-optional-catch-binding
 
 **.babelrc**
 
-```json
+```jsonc
 {
   "plugins": ["@babel/plugin-codemod-optional-catch-binding"]
 }

codemods/babel-plugin-codemod-optional-catch-binding/package.json

@@ -1,22 +1,25 @@
 {
   "name": "@babel/plugin-codemod-optional-catch-binding",
-  "version": "7.0.0-beta.56",
+  "version": "7.0.0",
   "description": "Remove unused catch bindings",
   "repository": "https://github.com/babel/babel/tree/master/codemods/babel-plugin-codemod-remove-unused-catch-binding",
   "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
   "main": "lib/index.js",
   "keywords": [
     "@babel/codemod",
     "@babel/plugin"
   ],
   "dependencies": {
-    "@babel/plugin-syntax-optional-catch-binding": "7.0.0-beta.56"
+    "@babel/plugin-syntax-optional-catch-binding": "^7.0.0"
   },
   "peerDependencies": {
-    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
+    "@babel/core": "^7.0.0-0"
   },
   "devDependencies": {
-    "@babel/core": "7.0.0-beta.56",
-    "@babel/helper-plugin-test-runner": "7.0.0-beta.56"
+    "@babel/core": "^7.0.0",
+    "@babel/helper-plugin-test-runner": "^7.0.0"
   }
 }

codemods/babel-plugin-codemod-optional-catch-binding/test/fixtures/codemod-optional-catch-binding/try-catch-block-duplicate-variable-declaration/input.js

@@ -1,5 +0,0 @@
-try {
-  throw 0;
-} catch (e) {
-  let e = new TypeError('Duplicate variable declaration; will throw an error.');
-}

codemods/babel-plugin-codemod-optional-catch-binding/test/fixtures/codemod-optional-catch-binding/try-catch-block-duplicate-variable-declaration/options.json

@@ -1,4 +0,0 @@
-{
-  "plugins": ["../../../../lib"],
-  "throws": "Duplicate declaration \"e\""
-}

lerna.json

@@ -1,11 +1,10 @@
 {
-  "lerna": "2.11.0",
-  "version": "7.0.0-beta.56",
+  "version": "7.4.4",
   "changelog": {
     "repo": "babel/babel",
     "cacheDir": ".changelog",
     "labels": {
-      "PR: Spec Compliancy :eyeglasses:": ":eyeglasses: Spec Compliancy",
+      "PR: Spec Compliance :eyeglasses:": ":eyeglasses: Spec Compliance",
       "PR: Breaking Change :boom:": ":boom: Breaking Change",
       "PR: New Feature :rocket:": ":rocket: New Feature",
       "PR: Bug Fix :bug:": ":bug: Bug Fix",
@@ -14,18 +13,21 @@
       "PR: Internal :house:": ":house: Internal"
     }
   },
-  "commands": {
+  "command": {
     "publish": {
-      "ignore": [
+      "ignoreChanges": [
         "*.md",
+        "*.txt",
         "test/**",
-        "codemods/**"
+        "codemods/**",
+        "# We ignore every JSON file, except for built-in-modules, built-ins and plugins defined in babel-preset-env/data.",
+        "@(!(built-in-modules|built-ins|plugins|package)).json"
       ]
     }
   },
   "packages": [
-    "packages/*",
-    "codemods/*"
+    "codemods/*",
+    "packages/*"
   ],
   "npmClient": "yarn",
   "npmClientArgs": [

lib/third-party-libs.js.flow

@@ -2,12 +2,6 @@
  * Basic declarations for the npm modules we use.
  */
 
-declare module "micromatch" {
-  declare module.exports: {
-    (Array<string>, Array<string>, ?{ nocase: boolean }): Array<string>,
-  };
-}
-
 declare module "resolve" {
   declare export default {
     sync: (string, {| basedir: string |}) => string;
@@ -33,16 +27,31 @@ declare module "lodash/merge" {
 }
 
 declare module "semver" {
+  declare class SemVer {
+    build: Array<string>;
+    loose: ?boolean;
+    major: number;
+    minor: number;
+    patch: number;
+    prerelease: Array<string | number>;
+    raw: string;
+    version: string;
+
+    constructor(version: string | SemVer): SemVer;
+  }
+
   declare module.exports: {
-    valid(v: string): boolean;
+    SemVer: SemVer;
+
+    coerce(version: string | SemVer): SemVer | null;
     gt(v1: string, v2: string): boolean;
+    intersects(r1: string, r2: string): boolean;
     lt(v1: string, v2: string): boolean;
     major(v: string): number;
     minor(v: string): number;
     patch(v: string): number;
     satisfies(v1: string, r1: string): boolean;
-
-    intersects(r1: string, r2: string): boolean;
+    valid(v: string): boolean;
   }
 }
 
@@ -186,3 +195,13 @@ declare module "js-levenshtein" {
     (string, string): number,
   };
 }
+
+declare module "core-js-compat/data" {
+  declare type Target = "node" | "chrome" | "opera" | "edge" | "firefox" | "safari" | "ie" | "ios" | "android" | "electron" | "samsung";
+
+  declare module.exports: {
+    [key: string]: {
+      [target: Target]: string;
+    }
+  }
+}

package.json

@@ -6,80 +6,87 @@
     "build": "make build",
     "fix": "make fix",
     "lint": "make lint",
-    "precommit": "lint-staged",
     "test": "make test"
   },
   "devDependencies": {
-    "@babel/cli": "7.0.0-beta.52",
-    "@babel/core": "7.0.0-beta.52",
-    "@babel/plugin-transform-runtime": "7.0.0-beta.52",
-    "@babel/plugin-proposal-class-properties": "7.0.0-beta.52",
-    "@babel/plugin-proposal-export-namespace-from": "7.0.0-beta.52",
-    "@babel/plugin-proposal-numeric-separator": "7.0.0-beta.52",
-    "@babel/plugin-transform-modules-commonjs": "7.0.0-beta.52",
-    "@babel/preset-env": "7.0.0-beta.52",
-    "@babel/preset-flow": "7.0.0-beta.52",
-    "@babel/register": "7.0.0-beta.52",
-    "@babel/runtime": "7.0.0-beta.52",
-    "babel-core": "^7.0.0-0",
-    "babel-eslint": "^8.2.6",
-    "babel-jest": "^23.4.0",
-    "babel-loader": "8.0.0-beta.0",
-    "babel-plugin-transform-charcodes": "^0.1.0",
-    "browserify": "^13.1.1",
+    "@babel/cli": "^7.2.3",
+    "@babel/core": "^7.4.0",
+    "@babel/eslint-plugin-development": "^1.0.1",
+    "@babel/plugin-proposal-class-properties": "^7.4.0",
+    "@babel/plugin-proposal-export-namespace-from": "^7.2.0",
+    "@babel/plugin-proposal-numeric-separator": "^7.2.0",
+    "@babel/plugin-transform-modules-commonjs": "^7.4.0",
+    "@babel/plugin-transform-runtime": "^7.4.0",
+    "@babel/preset-env": "^7.4.1",
+    "@babel/preset-flow": "^7.0.0",
+    "@babel/register": "^7.4.0",
+    "@babel/runtime": "^7.4.0",
+    "babel-eslint": "^11.0.0-beta.0",
+    "babel-jest": "^24.5.0",
+    "babel-loader": "^8.0.5",
+    "babel-plugin-transform-charcodes": "^0.2.0",
+    "browserify": "^16.2.3",
     "bundle-collapser": "^1.2.1",
     "chalk": "^2.3.2",
-    "charcodes": "^0.1.0",
+    "charcodes": "^0.2.0",
     "derequire": "^2.0.2",
+    "duplicate-package-checker-webpack-plugin": "^2.1.0",
     "enhanced-resolve": "^3.0.0",
-    "eslint": "^5.1.0",
-    "eslint-config-babel": "^7.0.2",
-    "eslint-plugin-flowtype": "^2.50.0",
-    "eslint-plugin-prettier": "^2.6.2",
-    "flow-bin": "^0.76.0",
-    "graceful-fs": "^4.1.11",
+    "eslint": "^5.15.1",
+    "eslint-config-babel": "^9.0.0",
+    "eslint-plugin-flowtype": "^3.2.1",
+    "eslint-plugin-import": "^2.16.0",
+    "eslint-plugin-prettier": "^3.0.1",
+    "fancy-log": "^1.3.3",
+    "flow-bin": "^0.94.0",
+    "graceful-fs": "^4.1.15",
     "gulp": "^4.0.0",
-    "gulp-babel": "^8.0.0-beta.2",
+    "gulp-babel": "^8.0.0",
     "gulp-filter": "^5.1.0",
     "gulp-newer": "^1.0.0",
-    "gulp-plumber": "^1.0.1",
-    "gulp-rename": "^1.2.2",
-    "gulp-uglify": "^3.0.0",
-    "gulp-util": "^3.0.7",
-    "gulp-watch": "^5.0.0",
-    "husky": "^0.14.3",
-    "jest": "^23.4.1",
-    "lerna": "^2.11.0",
+    "gulp-plumber": "^1.2.1",
+    "gulp-rename": "^1.4.0",
+    "gulp-uglify": "^3.0.2",
+    "gulp-watch": "^5.0.1",
+    "husky": "^1.3.1",
+    "jest": "^24.5.0",
+    "lerna": "^3.6.0",
     "lerna-changelog": "^0.5.0",
-    "lint-staged": "^6.0.1",
-    "lodash": "^4.17.10",
+    "lint-staged": "^8.1.0",
+    "lodash": "^4.17.11",
     "merge-stream": "^1.0.1",
     "output-file-sync": "^2.0.0",
-    "prettier": "^1.13.7",
-    "pump": "^1.0.2",
-    "rimraf": "^2.4.3",
-    "rollup-plugin-babel": "^4.0.0-beta.0",
-    "rollup-plugin-node-resolve": "^3.0.2",
-    "rollup-stream": "^1.24.1",
+    "prettier": "^1.16.1",
+    "pump": "^3.0.0",
+    "rimraf": "^2.6.3",
+    "rollup": "^1.6.0",
+    "rollup-plugin-babel": "^4.0.0",
+    "rollup-plugin-node-resolve": "^4.0.1",
     "test262-stream": "^1.2.0",
     "through2": "^2.0.0",
-    "uglify-js": "^2.4.16",
-    "vinyl-buffer": "^1.0.1",
-    "vinyl-source-stream": "^2.0.0",
+    "warnings-to-errors-webpack-plugin": "^2.0.0",
     "webpack": "^3.4.1",
     "webpack-dependency-suite": "^2.4.4",
     "webpack-stream": "^4.0.0"
   },
+  "resolutions": {
+    "@lerna/**/@lerna/collect-updates": "https://github.com/nicolo-ribaudo/lerna.git#babel-collect-updates"
+  },
   "engines": {
-    "node": ">= 6.9.0 <= 11.0.0-0",
-    "npm": ">= 2.x <= 5.x",
+    "node": ">= 6.9.0 < 13.0.0",
+    "npm": ">= 3.x <= 6.x",
     "yarn": ">=0.27.5 || >=1.0.0-20170811"
   },
   "lint-staged": {
     "*.js": [
-      "eslint --format=codeframe --rulesdir='./scripts/eslint_rules'"
+      "eslint --format=codeframe"
     ]
   },
+  "husky": {
+    "hooks": {
+      "pre-commit": "lint-staged"
+    }
+  },
   "jest": {
     "collectCoverageFrom": [
       "packages/*/src/**/*.mjs",
@@ -101,7 +108,9 @@
       "_browser\\.js"
     ],
     "testEnvironment": "node",
-    "setupTestFrameworkScriptFile": "<rootDir>/test/testSetupFile.js",
+    "setupFilesAfterEnv": [
+      "<rootDir>/test/testSetupFile.js"
+    ],
     "transformIgnorePatterns": [
       "/node_modules/",
       "<rootDir>/packages/babel-standalone/babel(\\.min)?\\.js",
@@ -120,6 +129,10 @@
       "/test/tmp/",
       "/test/__data__/",
       "<rootDir>/build/"
-    ]
-  }
+    ],
+    "moduleNameMapper": {
+      "^@babel/([a-zA-Z0-9_-]+)$": "<rootDir>/packages/babel-$1/"
+    }
+  },
+  "dependencies": {}
 }

packages/README.md

@@ -13,10 +13,10 @@ A monorepo, muhahahahahaha. See the [monorepo design doc](/doc/design/monorepo.m
 
 | Package | Version | Dependencies |
 |--------|-------|------------|
-| [`@babel/core`](/packages/babel-core) | [![npm](https://img.shields.io/npm/v/@babel/core.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/core) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-core)](https://david-dm.org/babel/babel?path=packages/babel-core) |
-| [`@babel/parser`](/packages/@babel/parser) | [![npm](https://img.shields.io/npm/v/@babel/parser.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/parser) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-parser)](https://david-dm.org/babel/babel?path=packages/babel-parser) |
-| [`@babel/traverse`](/packages/babel-traverse) | [![npm](https://img.shields.io/npm/v/@babel/traverse.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/traverse) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-traverse)](https://david-dm.org/babel/babel?path=packages/babel-traverse) |
-| [`@babel/generator`](/packages/babel-generator) | [![npm](https://img.shields.io/npm/v/@babel/generator.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/generator) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-generator)](https://david-dm.org/babel/babel?path=packages/babel-generator) |
+| [`@babel/core`](/packages/babel-core) | [![npm](https://img.shields.io/npm/v/@babel/core.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/core) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-core)](https://david-dm.org/babel/babel?path=packages/babel-core) |
+| [`@babel/parser`](/packages/babel-parser) | [![npm](https://img.shields.io/npm/v/@babel/parser.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/parser) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-parser)](https://david-dm.org/babel/babel?path=packages/babel-parser) |
+| [`@babel/traverse`](/packages/babel-traverse) | [![npm](https://img.shields.io/npm/v/@babel/traverse.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/traverse) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-traverse)](https://david-dm.org/babel/babel?path=packages/babel-traverse) |
+| [`@babel/generator`](/packages/babel-generator) | [![npm](https://img.shields.io/npm/v/@babel/generator.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/generator) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-generator)](https://david-dm.org/babel/babel?path=packages/babel-generator) |
 
 [`@babel/core`](/packages/babel-core) is the Babel compiler itself; it exposes the `babel.transform` method, where `transformedCode = transform(src).code`.
 
@@ -36,14 +36,14 @@ Check out the [`babel-handbook`](https://github.com/thejameskyle/babel-handbook/
 
 | Package | Version | Dependencies |
 |--------|-------|------------|
-| [`@babel/cli`](/packages/babel-cli) | [![npm](https://img.shields.io/npm/v/@babel/cli.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/cli) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-cli)](https://david-dm.org/babel/babel?path=packages/babel-cli) |
-| [`@babel/types`](/packages/babel-types) | [![npm](https://img.shields.io/npm/v/@babel/types.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/types) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-types)](https://david-dm.org/babel/babel?path=packages/babel-types) |
-| [`@babel/polyfill`](/packages/babel-polyfill) | [![npm](https://img.shields.io/npm/v/@babel/polyfill.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/polyfill) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-polyfill)](https://david-dm.org/babel/babel?path=packages/babel-polyfill) |
-| [`@babel/runtime`](/packages/babel-runtime) | [![npm](https://img.shields.io/npm/v/@babel/runtime.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/runtime) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-runtime)](https://david-dm.org/babel/babel?path=packages/babel-runtime) |
-| [`@babel/register`](/packages/babel-register) | [![npm](https://img.shields.io/npm/v/@babel/register.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/register) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-register)](https://david-dm.org/babel/babel?path=packages/babel-register) |
-| [`@babel/template`](/packages/babel-template) | [![npm](https://img.shields.io/npm/v/@babel/template.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/template) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-template)](https://david-dm.org/babel/babel?path=packages/babel-template) |
-| [`@babel/helpers`](/packages/babel-helpers) | [![npm](https://img.shields.io/npm/v/@babel/helpers.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/helpers) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-helpers)](https://david-dm.org/babel/babel?path=packages/babel-helpers) |
-| [`@babel/code-frame`](/packages/babel-code-frame) | [![npm](https://img.shields.io/npm/v/@babel/code-frame.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/code-frame) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-code-frame)](https://david-dm.org/babel/babel?path=packages/babel-code-frame) |
+| [`@babel/cli`](/packages/babel-cli) | [![npm](https://img.shields.io/npm/v/@babel/cli.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/cli) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-cli)](https://david-dm.org/babel/babel?path=packages/babel-cli) |
+| [`@babel/types`](/packages/babel-types) | [![npm](https://img.shields.io/npm/v/@babel/types.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/types) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-types)](https://david-dm.org/babel/babel?path=packages/babel-types) |
+| [`@babel/polyfill`](/packages/babel-polyfill) | [![npm](https://img.shields.io/npm/v/@babel/polyfill.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/polyfill) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-polyfill)](https://david-dm.org/babel/babel?path=packages/babel-polyfill) |
+| [`@babel/runtime`](/packages/babel-runtime) | [![npm](https://img.shields.io/npm/v/@babel/runtime.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/runtime) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-runtime)](https://david-dm.org/babel/babel?path=packages/babel-runtime) |
+| [`@babel/register`](/packages/babel-register) | [![npm](https://img.shields.io/npm/v/@babel/register.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/register) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-register)](https://david-dm.org/babel/babel?path=packages/babel-register) |
+| [`@babel/template`](/packages/babel-template) | [![npm](https://img.shields.io/npm/v/@babel/template.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/template) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-template)](https://david-dm.org/babel/babel?path=packages/babel-template) |
+| [`@babel/helpers`](/packages/babel-helpers) | [![npm](https://img.shields.io/npm/v/@babel/helpers.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/helpers) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-helpers)](https://david-dm.org/babel/babel?path=packages/babel-helpers) |
+| [`@babel/code-frame`](/packages/babel-code-frame) | [![npm](https://img.shields.io/npm/v/@babel/code-frame.svg?maxAge=3600)](https://www.npmjs.com/package/@babel/code-frame) | [![Dependency Status](https://david-dm.org/babel/babel.svg?path=packages/babel-code-frame)](https://david-dm.org/babel/babel?path=packages/babel-code-frame) |
 
 - [`@babel/cli`](/packages/babel-cli) is the CLI tool that runs `@babel/core` and helps with outputting to a directory, a file, stdout and more (also includes `@babel/node` cli). Check out the [docs](https://babeljs.io/docs/usage/cli/).
 - [`@babel/types`](/packages/babel-types) is used to validate, build and change AST nodes.
@@ -62,7 +62,7 @@ The transformer[s] used in Babel are the independent pieces of code that transfo
 
 | Package | Version | Dependencies | Description |
 |--------|-------|------------|---|
-| [`@babel/preset-env`](/packages/babel-preset-env) | [![npm](https://img.shields.io/npm/v/@babel/preset-env.svg?maxAge=2592000)](https://www.npmjs.com/package/@babel/preset-env) | [![Dependency Status](https://david-dm.org/babel/babel/status.svg?path=packages/babel-preset-env)](https://david-dm.org/babel/babel?path=packages/babel-preset-env) | automatically determines plugins and polyfills you need based on your supported environments |
+| [`@babel/preset-env`](/packages/babel-preset-env) | [![npm](https://img.shields.io/npm/v/@babel/preset-env.svg?maxAge=?maxAge=3600)](https://www.npmjs.com/package/@babel/preset-env) | [![Dependency Status](https://david-dm.org/babel/babel/status.svg?path=packages/babel-preset-env)](https://david-dm.org/babel/babel?path=packages/babel-preset-env) | automatically determines plugins and polyfills you need based on your supported environments |
 
 > You can find community maintained presets on [npm](https://www.npmjs.com/search?q=babel-preset)
 

packages/babel-cli/package.json

@@ -1,10 +1,13 @@
 {
   "name": "@babel/cli",
-  "version": "7.0.0-beta.56",
+  "version": "7.4.4",
   "description": "Babel command line.",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
   "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
   "repository": "https://github.com/babel/babel/tree/master/packages/babel-cli",
   "keywords": [
     "6to5",
@@ -18,23 +21,23 @@
   "dependencies": {
     "commander": "^2.8.1",
     "convert-source-map": "^1.1.0",
-    "fs-readdir-recursive": "^1.0.0",
+    "fs-readdir-recursive": "^1.1.0",
     "glob": "^7.0.0",
-    "lodash": "^4.17.10",
+    "lodash": "^4.17.11",
     "mkdirp": "^0.5.1",
     "output-file-sync": "^2.0.0",
-    "slash": "^1.0.0",
+    "slash": "^2.0.0",
     "source-map": "^0.5.0"
   },
   "optionalDependencies": {
-    "chokidar": "^2.0.3"
+    "chokidar": "^2.0.4"
   },
   "peerDependencies": {
-    "@babel/core": ">=7.0.0-beta.50 <7.0.0-rc.0"
+    "@babel/core": "^7.0.0-0"
   },
   "devDependencies": {
-    "@babel/core": "7.0.0-beta.56",
-    "@babel/helper-fixtures": "7.0.0-beta.56"
+    "@babel/core": "^7.4.4",
+    "@babel/helper-fixtures": "^7.4.4"
   },
   "bin": {
     "babel": "./bin/babel.js",

packages/babel-cli/src/babel/file.js

@@ -137,7 +137,11 @@ export default async function({ cliOptions, babelOptions }) {
         const dirname = filename;
 
         util
-          .readdirForCompilable(filename, cliOptions.includeDotfiles)
+          .readdirForCompilable(
+            filename,
+            cliOptions.includeDotfiles,
+            cliOptions.extensions,
+          )
           .forEach(function(filename) {
             _filenames.push(path.join(dirname, filename));
           });

packages/babel-cli/src/babel/options.js

@@ -22,12 +22,17 @@ commander.option(
   "comma-separated list of plugin names",
   collect,
 );
-commander.option("--config-file [path]", "Path a to .babelrc file to use");
+commander.option("--config-file [path]", "Path to a .babelrc file to use");
 commander.option(
   "--env-name [name]",
   "The name of the 'env' to use when loading configs and plugins. " +
     "Defaults to the value of BABEL_ENV, or else NODE_ENV, or else 'development'.",
 );
+commander.option(
+  "--root-mode [mode]",
+  "The project-root resolution mode. " +
+    "One of 'root' (the default), 'upward', or 'upward-optional'.",
+);
 
 // Basic file input configuration.
 commander.option("--source-type [script|module]", "");
@@ -76,7 +81,7 @@ commander.option(
   "print a comment after any injected non-user code",
 );
 
-// General soucemap formatting.
+// General source map formatting.
 commander.option("-s, --source-maps [true|false|inline|both]", "", booleanify);
 commander.option(
   "--source-map-target [string]",
@@ -162,20 +167,20 @@ export default function parseArgv(args: Array<string>) {
 
   filenames.forEach(function(filename) {
     if (!fs.existsSync(filename)) {
-      errors.push(filename + " doesn't exist");
+      errors.push(filename + " does not exist");
     }
   });
 
   if (commander.outDir && !filenames.length) {
-    errors.push("filenames required for --out-dir");
+    errors.push("--out-dir requires filenames");
   }
 
   if (commander.outFile && commander.outDir) {
-    errors.push("cannot have --out-file and --out-dir");
+    errors.push("--out-file and --out-dir cannot be used together");
   }
 
   if (commander.relative && !commander.outDir) {
-    errors.push("output directory required for --relative");
+    errors.push("--relative requires --out-dir usage");
   }
 
   if (commander.watch) {
@@ -207,41 +212,56 @@ export default function parseArgv(args: Array<string>) {
   }
 
   if (errors.length) {
-    console.error(errors.join(". "));
+    console.error("babel:");
+    errors.forEach(function(e) {
+      console.error("  " + e);
+    });
     process.exit(2);
   }
 
   const opts = commander.opts();
 
-  return {
-    babelOptions: {
-      presets: opts.presets,
-      plugins: opts.plugins,
-      configFile: opts.configFile,
-      envName: opts.envName,
-      sourceType: opts.sourceType,
-      ignore: opts.ignore,
-      only: opts.only,
-      retainLines: opts.retainLines,
-      compact: opts.compact,
-      minified: opts.minified,
-      auxiliaryCommentBefore: opts.auxiliaryCommentBefore,
-      auxiliaryCommentAfter: opts.auxiliaryCommentAfter,
-      sourceMaps: opts.sourceMaps,
-      sourceFileName: opts.sourceFileName,
-      sourceRoot: opts.sourceRoot,
-      moduleRoot: opts.moduleRoot,
-      moduleIds: opts.moduleIds,
-      moduleId: opts.moduleId,
+  const babelOptions = {
+    presets: opts.presets,
+    plugins: opts.plugins,
+    rootMode: opts.rootMode,
+    configFile: opts.configFile,
+    envName: opts.envName,
+    sourceType: opts.sourceType,
+    ignore: opts.ignore,
+    only: opts.only,
+    retainLines: opts.retainLines,
+    compact: opts.compact,
+    minified: opts.minified,
+    auxiliaryCommentBefore: opts.auxiliaryCommentBefore,
+    auxiliaryCommentAfter: opts.auxiliaryCommentAfter,
+    sourceMaps: opts.sourceMaps,
+    sourceFileName: opts.sourceFileName,
+    sourceRoot: opts.sourceRoot,
+    moduleRoot: opts.moduleRoot,
+    moduleIds: opts.moduleIds,
+    moduleId: opts.moduleId,
 
-      // Commander will default the "--no-" arguments to true, but we want to
-      // leave them undefined so that @babel/core can handle the
-      // default-assignment logic on its own.
-      babelrc: opts.babelrc === true ? undefined : opts.babelrc,
-      highlightCode:
-        opts.highlightCode === true ? undefined : opts.highlightCode,
-      comments: opts.comments === true ? undefined : opts.comments,
-    },
+    // Commander will default the "--no-" arguments to true, but we want to
+    // leave them undefined so that @babel/core can handle the
+    // default-assignment logic on its own.
+    babelrc: opts.babelrc === true ? undefined : opts.babelrc,
+    highlightCode: opts.highlightCode === true ? undefined : opts.highlightCode,
+    comments: opts.comments === true ? undefined : opts.comments,
+  };
+
+  // If the @babel/cli version is newer than the @babel/core version, and we have added
+  // new options for @babel/core, we'll potentially get option validation errors from
+  // @babel/core. To avoid that, we delete undefined options, so @babel/core will only
+  // give the error if users actually pass an unsupported CLI option.
+  for (const key of Object.keys(babelOptions)) {
+    if (babelOptions[key] === undefined) {
+      delete babelOptions[key];
+    }
+  }
+
+  return {
+    babelOptions,
     cliOptions: {
       filename: opts.filename,
       filenames,

packages/babel-cli/src/babel/util.js

@@ -29,8 +29,11 @@ export function readdir(
 export function readdirForCompilable(
   dirname: string,
   includeDotfiles: boolean,
+  altExts?: Array<string>,
 ) {
-  return readdir(dirname, includeDotfiles, isCompilableExtension);
+  return readdir(dirname, includeDotfiles, function(filename) {
+    return isCompilableExtension(filename, altExts);
+  });
 }
 
 /**
@@ -49,9 +52,14 @@ export function addSourceMappingUrl(code, loc) {
   return code + "\n//# sourceMappingURL=" + path.basename(loc);
 }
 
+const CALLER = {
+  name: "@babel/cli",
+};
+
 export function transform(filename, code, opts) {
   opts = {
     ...opts,
+    caller: CALLER,
     filename,
   };
 
@@ -64,6 +72,11 @@ export function transform(filename, code, opts) {
 }
 
 export function compile(filename, opts) {
+  opts = {
+    ...opts,
+    caller: CALLER,
+  };
+
   return new Promise((resolve, reject) => {
     babel.transformFile(filename, opts, (err, result) => {
       if (err) reject(err);

packages/babel-cli/test/fixtures/babel/--copy-files --include-dotfiles with ignore/options.json

@@ -1,10 +1,12 @@
 {
   "args": [
     "src",
-    "--out-dir", "lib",
+    "--out-dir",
+    "lib",
     "--copy-files",
     "--include-dotfiles",
-    "--ignore", "src/foo",
+    "--ignore",
+    "src/foo",
     "--verbose"
   ]
 }

packages/babel-cli/test/fixtures/babel/--copy-files --include-dotfiles with only/options.json

@@ -1,10 +1,12 @@
 {
   "args": [
     "src",
-    "--out-dir", "lib",
+    "--out-dir",
+    "lib",
     "--copy-files",
     "--include-dotfiles",
-    "--only", "src/foo",
+    "--only",
+    "src/foo",
     "--verbose"
   ]
 }

packages/babel-cli/test/fixtures/babel/--copy-files --include-dotfiles/options.json

@@ -1,3 +1,10 @@
 {
-  "args": ["src", "--out-dir", "lib", "--copy-files", "--include-dotfiles", "--verbose"]
+  "args": [
+    "src",
+    "--out-dir",
+    "lib",
+    "--copy-files",
+    "--include-dotfiles",
+    "--verbose"
+  ]
 }

packages/babel-cli/test/fixtures/babel/--copy-files with ignore/options.json

@@ -1,9 +1,11 @@
 {
   "args": [
     "src",
-    "--out-dir", "lib",
+    "--out-dir",
+    "lib",
     "--copy-files",
-    "--ignore", "src/foo/*",
+    "--ignore",
+    "src/foo/*",
     "--verbose"
   ]
 }

packages/babel-cli/test/fixtures/babel/--copy-files with only/options.json

@@ -1,9 +1,11 @@
 {
   "args": [
     "src",
-    "--out-dir", "lib",
+    "--out-dir",
+    "lib",
     "--copy-files",
-    "--only", "src/foo/*",
+    "--only",
+    "src/foo/*",
     "--verbose"
   ]
 }

packages/babel-cli/test/fixtures/babel/.stdin --out-file --source-maps/options.json

@@ -1,3 +0,0 @@
-{
-  "args": ["--source-maps", "--out-file", "test.js"]
-}

packages/babel-cli/test/fixtures/babel/.stdin --source-maps inline/options.json

@@ -1,3 +0,0 @@
-{
-  "args": ["--source-maps", "inline"]
-}

packages/babel-cli/test/fixtures/babel/.stdin --source-maps inline/stdout.txt

@@ -1,7 +0,0 @@
-"use strict";
-
-arr.map(function (x) {
-  return x * x;
-});
-
-//# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInN0ZGluIl0sIm5hbWVzIjpbXSwibWFwcGluZ3MiOiI7O0FBQUEsR0FBRyxDQUFDLEdBQUcsQ0FBQyxVQUFBLENBQUM7U0FBSSxDQUFDLEdBQUcsQ0FBQztDQUFBLENBQUMsQ0FBQyIsImZpbGUiOiJzdGRvdXQiLCJzb3VyY2VzQ29udGVudCI6WyJhcnIubWFwKHggPT4geCAqIHgpOyJdfQ==

packages/babel-cli/test/fixtures/babel/dir --out-dir --out-file/in-files/src/bar/bar.js

@@ -0,0 +1,3 @@
+class Test {
+
+}

packages/babel-cli/test/fixtures/babel/dir --out-dir --out-file/in-files/src/foo.js

@@ -0,0 +1 @@
+arr.map(x => x * MULTIPLIER);

packages/babel-cli/test/fixtures/babel/dir --out-dir --out-file/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["src", "--out-dir", "lib", "--out-file", "compiled.js"]
+}

packages/babel-cli/test/fixtures/babel/dir --out-dir --out-file/stderr.txt

@@ -0,0 +1,2 @@
+babel:
+  --out-file and --out-dir cannot be used together

packages/babel-cli/test/fixtures/babel/dir --out-dir no filenames/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["--out-dir", "lib"]
+}

packages/babel-cli/test/fixtures/babel/dir --out-dir no filenames/stderr.txt

@@ -0,0 +1,2 @@
+babel:
+  --out-dir requires filenames

packages/babel-cli/test/fixtures/babel/dir --out-file --extensions/in-files/src/bar/bar.es

@@ -0,0 +1 @@
+ (() => 42)

packages/babel-cli/test/fixtures/babel/dir --out-file --extensions/in-files/src/foo.es

@@ -0,0 +1 @@
+arr.map(x => x * MULTIPLIER);

packages/babel-cli/test/fixtures/babel/dir --out-file --extensions/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["src", "--out-file", "test.js", "--extensions", ".es"]
+}

packages/babel-cli/test/fixtures/babel/dir --out-file --extensions/out-files/test.js

@@ -0,0 +1,10 @@
+"use strict";
+
+(function () {
+  return 42;
+});
+"use strict";
+
+arr.map(function (x) {
+  return x * MULTIPLIER;
+});

packages/babel-cli/test/fixtures/babel/dir --skip-initial-build no --watch/in-files/src/bar/bar.js

@@ -0,0 +1,3 @@
+class Test {
+
+}

packages/babel-cli/test/fixtures/babel/dir --skip-initial-build no --watch/in-files/src/foo.js

@@ -0,0 +1 @@
+arr.map(x => x * MULTIPLIER);

packages/babel-cli/test/fixtures/babel/dir --skip-initial-build no --watch/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["src", "--skip-initial-build", "--out-dir", "lib"]
+}

packages/babel-cli/test/fixtures/babel/dir --skip-initial-build no --watch/stderr.txt

@@ -0,0 +1,2 @@
+babel:
+  --skip-initial-build requires --watch

packages/babel-cli/test/fixtures/babel/dir --watch no --out-dir no --out-file/in-files/src/bar/bar.js

@@ -0,0 +1,3 @@
+class Test {
+
+}

packages/babel-cli/test/fixtures/babel/dir --watch no --out-dir no --out-file/in-files/src/foo.js

@@ -0,0 +1 @@
+arr.map(x => x * MULTIPLIER);

packages/babel-cli/test/fixtures/babel/dir --watch no --out-dir no --out-file/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["src", "--watch"]
+}

packages/babel-cli/test/fixtures/babel/dir --watch no --out-dir no --out-file/stderr.txt

@@ -0,0 +1,2 @@
+babel:
+  --watch requires --out-file or --out-dir

packages/babel-cli/test/fixtures/babel/error --out-dir --out-file/stderr.txt

@@ -1 +1 @@
-filenames required for --out-dir
+--out-dir requires filenames

packages/babel-cli/test/fixtures/babel/error --out-dir/stderr.txt

@@ -1 +1 @@
-cannot have --out-file and --out-dir
+--out-file and --out-dir cannot be used together

packages/babel-cli/test/fixtures/babel/error --relative/options.json

@@ -1,4 +1,4 @@
 {
-  "args": ["--relative"],
+  "args": ["--relative", "--no-babelrc"],
   "stderrContains": true
 }

packages/babel-cli/test/fixtures/babel/error --relative/stderr.txt

@@ -1 +1 @@
-output directory required for --relative
+--relative requires --out-dir usage

packages/babel-cli/test/fixtures/babel/error wrong filename/stderr.txt

@@ -1 +1 @@
-foo.json doesn't exist
+foo.json does not exist

packages/babel-cli/test/fixtures/babel/filename --watch no filenames/in-files/script.js

@@ -0,0 +1 @@
+arr.map(x => x * MULTIPLIER);

packages/babel-cli/test/fixtures/babel/filename --watch no filenames/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["--watch", "--out-file", "out.js", "--no-babelrc"]
+}

packages/babel-cli/test/fixtures/babel/filename --watch no filenames/stderr.txt

@@ -0,0 +1,2 @@
+babel:
+  --watch requires filenames

packages/babel-cli/test/fixtures/babel/filename does not exist/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["index.js"]
+}

packages/babel-cli/test/fixtures/babel/filename does not exist/stderr.txt

@@ -0,0 +1,2 @@
+babel:
+  index.js does not exist

packages/babel-cli/test/fixtures/babel/filenames --out-file --source-maps inline/options.json

@@ -1,3 +1,10 @@
 {
-  "args": ["script.js", "script2.js", "--source-maps", "inline", "--out-file", "script3.js"]
+  "args": [
+    "script.js",
+    "script2.js",
+    "--source-maps",
+    "inline",
+    "--out-file",
+    "script3.js"
+  ]
 }

packages/babel-cli/test/fixtures/babel/filenames --out-file --source-maps/options.json

@@ -1,3 +1,9 @@
 {
-  "args": ["script.js", "script2.js", "--source-maps", "--out-file", "script3.js"]
+  "args": [
+    "script.js",
+    "script2.js",
+    "--source-maps",
+    "--out-file",
+    "script3.js"
+  ]
 }

packages/babel-cli/test/fixtures/babel/stdin --out-file --source-maps/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["--source-maps", "--out-file", "test.js", "--no-babelrc"]
+}

packages/babel-cli/test/fixtures/babel/stdin --out-file --source-maps/out-files/test.js.map

@@ -1 +1 @@
-{"version":3,"sources":["stdin"],"names":[],"mappings":";;AAAA,GAAG,CAAC,GAAG,CAAC,UAAA,CAAC;SAAI,CAAC,GAAG,CAAC;CAAA,CAAC,CAAC","file":"test.js","sourcesContent":["arr.map(x => x * x);"]}
+{"version":3,"sources":["stdin"],"names":[],"mappings":";;AAAA,GAAG,CAAC,GAAJ,CAAQ,UAAA,CAAC;AAAA,SAAI,CAAC,GAAG,CAAR;AAAA,CAAT","file":"test.js","sourcesContent":["arr.map(x => x * x);"]}

packages/babel-cli/test/fixtures/babel/stdin --source-maps inline/options.json

@@ -0,0 +1,3 @@
+{
+  "args": ["--source-maps", "inline", "--no-babelrc"]
+}

packages/babel-cli/test/fixtures/babel/stdin --source-maps inline/stdout.txt

@@ -0,0 +1,8 @@
+"use strict";
+
+arr.map(function (x) {
+  return x * x;
+});
+//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInN0ZGluIl0sIm5hbWVzIjpbImFyciIsIm1hcCIsIngiXSwibWFwcGluZ3MiOiI7O0FBQUFBLEdBQUcsQ0FBQ0MsR0FBSixDQUFRLFVBQUFDLENBQUM7QUFBQSxTQUFJQSxDQUFDLEdBQUdBLENBQVI7QUFBQSxDQUFUIiwic291cmNlc0NvbnRlbnQiOlsiYXJyLm1hcCh4ID0+IHggKiB4KTsiXX0=
+
+//# sourceMappingURL=data:application/json;charset=utf-8;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbXSwibmFtZXMiOltdLCJtYXBwaW5ncyI6IiIsImZpbGUiOiJzdGRvdXQifQ==

packages/babel-code-frame/package.json

@@ -1,14 +1,17 @@
 {
   "name": "@babel/code-frame",
-  "version": "7.0.0-beta.56",
+  "version": "7.0.0",
   "description": "Generate errors that contain a code frame that point to source locations.",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
   "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
   "repository": "https://github.com/babel/babel/tree/master/packages/babel-code-frame",
   "main": "lib/index.js",
   "dependencies": {
-    "@babel/highlight": "7.0.0-beta.56"
+    "@babel/highlight": "^7.0.0"
   },
   "devDependencies": {
     "chalk": "^2.0.0",

packages/babel-core/package.json

@@ -1,11 +1,14 @@
 {
   "name": "@babel/core",
-  "version": "7.0.0-beta.56",
+  "version": "7.4.4",
   "description": "Babel compiler core.",
   "main": "lib/index.js",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
   "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  },
   "repository": "https://github.com/babel/babel/tree/master/packages/babel-core",
   "keywords": [
     "6to5",
@@ -30,23 +33,23 @@
     "./lib/transform-file.js": "./lib/transform-file-browser.js"
   },
   "dependencies": {
-    "@babel/code-frame": "7.0.0-beta.56",
-    "@babel/generator": "7.0.0-beta.56",
-    "@babel/helpers": "7.0.0-beta.56",
-    "@babel/parser": "7.0.0-beta.56",
-    "@babel/template": "7.0.0-beta.56",
-    "@babel/traverse": "7.0.0-beta.56",
-    "@babel/types": "7.0.0-beta.56",
+    "@babel/code-frame": "^7.0.0",
+    "@babel/generator": "^7.4.4",
+    "@babel/helpers": "^7.4.4",
+    "@babel/parser": "^7.4.4",
+    "@babel/template": "^7.4.4",
+    "@babel/traverse": "^7.4.4",
+    "@babel/types": "^7.4.4",
     "convert-source-map": "^1.1.0",
-    "debug": "^3.1.0",
-    "json5": "^0.5.0",
-    "lodash": "^4.17.10",
+    "debug": "^4.1.0",
+    "json5": "^2.1.0",
+    "lodash": "^4.17.11",
     "resolve": "^1.3.2",
     "semver": "^5.4.1",
     "source-map": "^0.5.0"
   },
   "devDependencies": {
-    "@babel/helper-transform-fixture-test-runner": "7.0.0-beta.56",
-    "@babel/register": "7.0.0-beta.56"
+    "@babel/helper-transform-fixture-test-runner": "^7.4.4",
+    "@babel/register": "^7.4.4"
   }
 }

packages/babel-core/src/config/caching.js

@@ -54,6 +54,7 @@ function makeCachedFunction<
   ArgT,
   ResultT,
   SideChannel,
+  // $FlowIssue https://github.com/facebook/flow/issues/4528
   Cache: CacheMap<ArgT, ResultT, SideChannel>,
 >(
   callCache: Cache,
@@ -206,12 +207,29 @@ function makeSimpleConfigurator(
       return;
     }
 
-    return cache.using(val);
+    return cache.using(() => assertSimpleType(val()));
   }
   cacheFn.forever = () => cache.forever();
   cacheFn.never = () => cache.never();
-  cacheFn.using = cb => cache.using(() => cb());
-  cacheFn.invalidate = cb => cache.invalidate(() => cb());
+  cacheFn.using = cb => cache.using(() => assertSimpleType(cb()));
+  cacheFn.invalidate = cb => cache.invalidate(() => assertSimpleType(cb()));
 
   return (cacheFn: any);
 }
+
+// Types are limited here so that in the future these values can be used
+// as part of Babel's caching logic.
+type SimpleType = string | boolean | number | null | void;
+export function assertSimpleType(value: mixed): SimpleType {
+  if (
+    value != null &&
+    typeof value !== "string" &&
+    typeof value !== "boolean" &&
+    typeof value !== "number"
+  ) {
+    throw new Error(
+      "Cache keys must be either string, boolean, number, null, or undefined.",
+    );
+  }
+  return value;
+}

packages/babel-core/src/config/config-chain.js

@@ -8,6 +8,7 @@ import {
   type IgnoreList,
   type ConfigApplicableTest,
   type BabelrcSearch,
+  type CallerMetadata,
 } from "./validation/options";
 import pathPatternToRegex from "./pattern-to-regex";
 
@@ -50,12 +51,27 @@ export type ConfigContext = {
   cwd: string,
   root: string,
   envName: string,
+  caller: CallerMetadata | void,
 };
 
 /**
  * Build a config chain for a given preset.
  */
-export const buildPresetChain: (
+export function buildPresetChain(
+  arg: PresetInstance,
+  context: *,
+): ConfigChain | null {
+  const chain = buildPresetChainWalker(arg, context);
+  if (!chain) return null;
+
+  return {
+    plugins: dedupDescriptors(chain.plugins),
+    presets: dedupDescriptors(chain.presets),
+    options: chain.options.map(o => normalizeOptions(o)),
+  };
+}
+
+export const buildPresetChainWalker: (
   arg: PresetInstance,
   context: *,
 ) => * = makeChainWalker({
@@ -128,12 +144,18 @@ export function buildRootChain(
 
   let configFile;
   if (typeof opts.configFile === "string") {
-    configFile = loadConfig(opts.configFile, context.cwd, context.envName);
+    configFile = loadConfig(
+      opts.configFile,
+      context.cwd,
+      context.envName,
+      context.caller,
+    );
   } else if (opts.configFile !== false) {
-    configFile = findRootConfig(context.root, context.envName);
+    configFile = findRootConfig(context.root, context.envName, context.caller);
   }
 
   let { babelrc, babelrcRoots } = opts;
+  let babelrcRootsDirectory = context.cwd;
 
   const configFileChain = emptyChain();
   if (configFile) {
@@ -147,6 +169,7 @@ export function buildRootChain(
       babelrc = validatedFile.options.babelrc;
     }
     if (babelrcRoots === undefined) {
+      babelrcRootsDirectory = validatedFile.dirname;
       babelrcRoots = validatedFile.options.babelrcRoots;
     }
 
@@ -164,11 +187,12 @@ export function buildRootChain(
   if (
     (babelrc === true || babelrc === undefined) &&
     pkgData &&
-    babelrcLoadEnabled(context, pkgData, babelrcRoots)
+    babelrcLoadEnabled(context, pkgData, babelrcRoots, babelrcRootsDirectory)
   ) {
     ({ ignore: ignoreFile, config: babelrcFile } = findRelativeConfig(
       pkgData,
       context.envName,
+      context.caller,
     ));
 
     if (
@@ -207,6 +231,7 @@ function babelrcLoadEnabled(
   context: ConfigContext,
   pkgData: FilePackageData,
   babelrcRoots: BabelrcSearch | void,
+  babelrcRootsDirectory: string,
 ): boolean {
   if (typeof babelrcRoots === "boolean") return babelrcRoots;
 
@@ -221,7 +246,9 @@ function babelrcLoadEnabled(
   let babelrcPatterns = babelrcRoots;
   if (!Array.isArray(babelrcPatterns)) babelrcPatterns = [babelrcPatterns];
   babelrcPatterns = babelrcPatterns.map(pat => {
-    return typeof pat === "string" ? path.resolve(context.cwd, pat) : pat;
+    return typeof pat === "string"
+      ? path.resolve(babelrcRootsDirectory, pat)
+      : pat;
   });
 
   // Fast path to avoid having to match patterns if the babelrc is just
@@ -231,10 +258,12 @@ function babelrcLoadEnabled(
   }
 
   return babelrcPatterns.some(pat => {
-    if (typeof pat === "string") pat = pathPatternToRegex(pat, context.cwd);
+    if (typeof pat === "string") {
+      pat = pathPatternToRegex(pat, babelrcRootsDirectory);
+    }
 
     return pkgData.directories.some(directory => {
-      return matchPattern(pat, context.cwd, directory);
+      return matchPattern(pat, babelrcRootsDirectory, directory, context);
     });
   });
 }
@@ -449,7 +478,12 @@ function mergeExtendsChain(
 ): boolean {
   if (opts.extends === undefined) return true;
 
-  const file = loadConfig(opts.extends, dirname, context.envName);
+  const file = loadConfig(
+    opts.extends,
+    dirname,
+    context.envName,
+    context.caller,
+  );
 
   if (files.has(file)) {
     throw new Error(
@@ -515,7 +549,7 @@ function normalizeOptions(opts: ValidatedOptions): ValidatedOptions {
 
   // "sourceMap" is just aliased to sourceMap, so copy it over as
   // we merge the options together.
-  if (options.sourceMap) {
+  if (options.hasOwnProperty("sourceMap")) {
     options.sourceMaps = options.sourceMap;
     delete options.sourceMap;
   }
@@ -527,7 +561,7 @@ function dedupDescriptors(
 ): Array<UnloadedDescriptor> {
   const map: Map<
     Function,
-    Map<string | void, { value: UnloadedDescriptor | null }>,
+    Map<string | void, { value: UnloadedDescriptor }>,
   > = new Map();
 
   const descriptors = [];
@@ -542,16 +576,12 @@ function dedupDescriptors(
       }
       let desc = nameMap.get(item.name);
       if (!desc) {
-        desc = { value: null };
+        desc = { value: item };
         descriptors.push(desc);
 
         // Treat passPerPreset presets as unique, skipping them
         // in the merge processing steps.
         if (!item.ownPass) nameMap.set(item.name, desc);
-      }
-
-      if (item.options === false) {
-        desc.value = null;
       } else {
         desc.value = item;
       }
@@ -561,7 +591,7 @@ function dedupDescriptors(
   }
 
   return descriptors.reduce((acc, desc) => {
-    if (desc.value) acc.push(desc.value);
+    acc.push(desc.value);
     return acc;
   }, []);
 }
@@ -633,12 +663,23 @@ function matchesPatterns(
   dirname: string,
 ): boolean {
   return patterns.some(pattern =>
-    matchPattern(pattern, dirname, context.filename),
+    matchPattern(pattern, dirname, context.filename, context),
   );
 }
 
-function matchPattern(pattern, dirname, pathToTest): boolean {
-  if (typeof pattern === "function") return !!pattern(pathToTest);
+function matchPattern(
+  pattern,
+  dirname,
+  pathToTest,
+  context: ConfigContext,
+): boolean {
+  if (typeof pattern === "function") {
+    return !!pattern(pathToTest, {
+      dirname,
+      envName: context.envName,
+      caller: context.caller,
+    });
+  }
 
   if (typeof pathToTest !== "string") {
     throw new Error(

packages/babel-core/src/config/config-descriptors.js

@@ -41,6 +41,22 @@ export type UnloadedDescriptor = {
   } | void,
 };
 
+function isEqualDescriptor(
+  a: UnloadedDescriptor,
+  b: UnloadedDescriptor,
+): boolean {
+  return (
+    a.name === b.name &&
+    a.value === b.value &&
+    a.options === b.options &&
+    a.dirname === b.dirname &&
+    a.alias === b.alias &&
+    a.ownPass === b.ownPass &&
+    (a.file && a.file.request) === (b.file && b.file.request) &&
+    (a.file && a.file.resolved) === (b.file && b.file.resolved)
+  );
+}
+
 export type ValidatedFile = {
   filepath: string,
   dirname: string,
@@ -50,7 +66,7 @@ export type ValidatedFile = {
 /**
  * Create a set of descriptors from a given options object, preserving
  * descriptor identity based on the identity of the plugin/preset arrays
- * themselves.
+ * themselves, and potentially on the identity of the plugins/presets + options.
  */
 export function createCachedDescriptors(
   dirname: string,
@@ -113,26 +129,82 @@ export function createUncachedDescriptors(
   };
 }
 
+const PRESET_DESCRIPTOR_CACHE = new WeakMap();
 const createCachedPresetDescriptors = makeWeakCache(
   (items: PluginList, cache: CacheConfigurator<string>) => {
     const dirname = cache.using(dir => dir);
     return makeStrongCache((alias: string) =>
       makeStrongCache((passPerPreset: boolean) =>
-        createPresetDescriptors(items, dirname, alias, passPerPreset),
+        createPresetDescriptors(items, dirname, alias, passPerPreset).map(
+          // Items are cached using the overall preset array identity when
+          // possibly, but individual descriptors are also cached if a match
+          // can be found in the previously-used descriptor lists.
+          desc => loadCachedDescriptor(PRESET_DESCRIPTOR_CACHE, desc),
+        ),
       ),
     );
   },
 );
 
+const PLUGIN_DESCRIPTOR_CACHE = new WeakMap();
 const createCachedPluginDescriptors = makeWeakCache(
   (items: PluginList, cache: CacheConfigurator<string>) => {
     const dirname = cache.using(dir => dir);
     return makeStrongCache((alias: string) =>
-      createPluginDescriptors(items, dirname, alias),
+      createPluginDescriptors(items, dirname, alias).map(
+        // Items are cached using the overall plugin array identity when
+        // possibly, but individual descriptors are also cached if a match
+        // can be found in the previously-used descriptor lists.
+        desc => loadCachedDescriptor(PLUGIN_DESCRIPTOR_CACHE, desc),
+      ),
     );
   },
 );
 
+/**
+ * When no options object is given in a descriptor, this object is used
+ * as a WeakMap key in order to have consistent identity.
+ */
+const DEFAULT_OPTIONS = {};
+
+/**
+ * Given the cache and a descriptor, returns a matching descriptor from the
+ * cache, or else returns the input descriptor and adds it to the cache for
+ * next time.
+ */
+function loadCachedDescriptor(
+  cache: WeakMap<{} | Function, WeakMap<{}, Array<UnloadedDescriptor>>>,
+  desc: UnloadedDescriptor,
+) {
+  const { value, options = DEFAULT_OPTIONS } = desc;
+  if (options === false) return desc;
+
+  let cacheByOptions = cache.get(value);
+  if (!cacheByOptions) {
+    cacheByOptions = new WeakMap();
+    cache.set(value, cacheByOptions);
+  }
+
+  let possibilities = cacheByOptions.get(options);
+  if (!possibilities) {
+    possibilities = [];
+    cacheByOptions.set(options, possibilities);
+  }
+
+  if (possibilities.indexOf(desc) === -1) {
+    const matches = possibilities.filter(possibility =>
+      isEqualDescriptor(possibility, desc),
+    );
+    if (matches.length > 0) {
+      return matches[0];
+    }
+
+    possibilities.push(desc);
+  }
+
+  return desc;
+}
+
 function createPresetDescriptors(
   items: PluginList,
   dirname: string,