babel/CHANGELOG.md

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# 1.14.17
* Add default initializer to let variables within loop bodies.
* Fix excessive `break` replacement inside of switches in let scoping.
# 1.14.16
* Add object getter memos and this shorthand to playground.
* Fix while loops in let scoping.
* Upgrade `acorn-6to5`.
# 1.14.14
* Fix template literals escaping.
# 1.14.13
* Fix let scoping of `while` loops.
* Make class methods enumerable.
# 1.14.12
* Fix duplicate dynamic expressions in call spread.
# 1.14.10
* Fix let scoping unneccesary override.
# 1.14.6
* Avoid ensuring a block on non-array node replacements.
# 1.14.5
* Upgrade `acorn-6to5`.
* Fix JSON recursion error for unknown code generator node types.
* Ensure that a statement is a block on block/statement types when replacing them with multiple nodes.
# 1.14.4
* Merge pretzel maps and method binding.
# 1.14.3
* Add playground pretzel maps.
# 1.14.2
* Fix `commonInterop` default export handling.
* Fix keyworded property key identifiers being turned into computed property key literals.
# 1.14.1
* Inherit comments from `ClassDeclaration`.
# 1.14.0
* Add [playground](https://6to5.github.io/playground.html).
# 1.13.13
* Fix `--debug` in `bin/6to5-node`. Thanks [@timoxley](https://github.com/timoxley).
# 1.13.12
* Ignore `XJSEmptyExpression`s in `react` transformer output.
# 1.13.11
* Fix `util.regexify` on falsy values.
* Fix `_aliasFunction` with rest parameters.
* Export as `module.exports` instead of `exports.default` if there are no other `ExportDeclaration`s in `commonInterop` module formatter.
* Add `system` module formatter. Thanks [@douglasduteil](https://github.com/douglasduteil).
# 1.13.10
* Add support for `AssignmentExpression` destructuring outside of `ExpressionStatement`.
# 1.13.9
* Fix `VirtualPropertyExpression` visitor keys.
# 1.13.8
* Only use a single reference in abstract references.
# 1.13.7
* Upgrade `acorn-6to5`.
* Add experimental exponentiation operator support.
# 1.13.6
* Fix experimental object spread/rest helper.
# 1.13.5
* Upgrade `acorn-6to5`.
* Add experimental support for object spread/rest.
* Change `arguments` to array to an additional helper method.
# 1.13.4
* Fix single spread element returning itself.
# 1.13.3
* Upgrade `acorn-6to5`.
* Add experimental support for abstract references.
# 1.13.2
* Optimise `Array.from` usage by adding a helper method.
* Upgrade `acorn-6to5`.
# 1.13.1
* Fix constructor spread optimisation. Thanks [@zloirock](https://github.com/zloirock).
# 1.13.0
* Put experimental ES7 features behind a flag `--experimental` and `experimental` option.
* Constructor spread performance increase. Thanks [@RReverser](https://github.com/RReverser).
* Use `self` instead of `window` in the optional 6to5 runtime. Thanks [@RReverser](https://github.com/RReverser).
# 1.12.26
* Support computed property destructuring.
# 1.12.25
* Update `acorn-6to5`, `ast-types`, `es6-shim`, `chokidar`, `estraverse` and `private`.
# 1.12.24
* Collect references that haven't been declared in scope.
# 1.12.23
* Fix generator function export hoisting.
# 1.12.22
* Update `fs-readdir-recursive` and `chokidar`.
* Support array destructuring on iterables.
* Make amd module id optional. Thanks [@webpro](https://github.com/webpro).
# 1.12.21
* Fix unneccesary let scoping replacement.
* Add `commonInterop` module formatter. Thanks [@Naddiseo](https://github.com/Naddiseo).
* Fix `return` outside of function body bug. Thanks [@brentburg](https://github.com/brentburg).
* Add more flexible option types.
# 1.12.20
* Append `sourceMappingURL` when using `bin/6to5` and output sourcemaps.
# 1.12.19
* Add `comments` option and `--remove-comments` flag. Thanks [@webpro](htps://github.com/webpro).
* Embed `regenerator`.
# 1.12.18
* Use `global` reference instead of `window`.
# 1.12.17
* Add `moduleName`, `sourceRoot` and `filenameRelative` options. Thanks [@darvelo](https://github.com/darvelo).
* Traversal optimisations.
# 1.12.16
* Fix comments not being retained from `MethodDefinition` in classes.
* Add temporal dead zone in default parameters.
# 1.12.15
* Update `acorn-6to5`.
# 1.12.14
* Fix duplicate let scoping in functions.
* Make JSX whitespace more React-compliant.
* Add `_memberExpressionKeywords` transformer that turns keyword identifiers to computed literals.
* Upgrade `regenerator-6to5`.
# 1.12.13
* Support duplicate constants within different block scopes.
* Fix for-head duplication testing and replacement.
* Support `raw` property on tagged template literals.
# 1.12.12
* Make scope tracker more reliable to handle all edgecases.
# 1.12.11
* Block scope classes.
* Fix generation of integer `Literal`s in `MemberExpression`.
# 1.12.10
* Fix let scoping var hoisting.
# 1.12.9
* Escape unicode characters when generating string `Literal`s.
* Fix semicolons being output for statements in `ExportDeclaration`.
* Fix `WithStatement` missing parenthesis.
# 1.12.8
* Temporarily forbid `AssignmentExpression` destructuring outside of `ExpressionStatement`.
# 1.12.7
* Update to latest `acorn-6to5`.
# 1.12.6
* Update to latest `acorn-6to5`.
# 1.12.5
* Fix excessive whitespace trimming resulting in innaccurate sourcemap line.
# 1.12.4
* Add `doc` folder for documentation.
# 1.12.3
* Support generator comprehensions.
* Use `Array.from` instead of `Array.prototype.slice` in spread transformer.
* Support spread in `NewExpression`s.
# 1.12.2
* Upgrade `matcha` to `0.6.0` and `browserify` to `6.3.2`.
* Add own `trimRight` helper instead of relying on the string instance method.
* Support JSX spreads that aren't the first.
# 1.12.1
* Fix `this` and `arguments` mapping in the `_aliasFunctions` transformer.
# 1.12.0
* Combine `jsx` and `react` transformers to `react`.
* Update `react` syntax output to React v0.12.
# 1.11.15
* Fix JSX literal whitespace generation.
# 1.11.14
* Avoid using a switch for let-scoping continue and break statements and use an if statement instead.
* Remove excess whitespace and newlines from JSX literals.
# 1.11.13
* Update regenerator-6to5
* Add support for most escodegen formatting options