v6.11.3

v6.11.3 (2016-07-13)

Please join #discussion on slack if you have questions and #development for dev

FYI: Babel releases don't mean each package updates. If a package isn't changed it keeps it's version number. The changelog entries below tell you what specific packages have changed. You shouldn't have to do anything in most cases other than npm install again.

The main fix is @loganfsmyth's changes of some parts in babel-generator in #3565 to fix issues with exponential code generation times in certain cases.

Items: the size of the array being generated
Time: The time in ms to generate the code
Length: The number of characters in the output code

Items	Old Time	New Time	Length
2	9	7	239
4	2	5	465
8	6	5	917
16	6	6	1840
32	15	11	3696
64	25	3	7408
128	93	13	14917
256	380	18	30149
512	1399	45	60613
1024	5301	63	121614
2048	20676	117	246542

• Fix rest param optimization bug
• Allow disabling "use strict" when using the cjs module transform.
• Fix typo with es2016 preset

Bug Fix

• babel-plugin-transform-es2015-parameters
  • #3573 Fix error in rest parameter length optimization. (@jridgewell)
• babel-generator
  • #3567 Use the first item in the queue since it is the most recent.. (@loganfsmyth)
• babel-plugin-transform-es2015-modules-commonjs, babel-plugin-transform-strict-mode
  • #3562 Adds strictMode option to strict-mode transform. (@thejameskyle)
• babel-preset-es2016
  • #3563 Use the proper transform plugin for preset-es2016.. (@loganfsmyth)

Polish

• babel-generator
  • #3566 Remove unused Position#unshift. (@jridgewell)
  • #3565 Make the code generator write-only to avoid exponential time generation. (@loganfsmyth)

Commiters: 3

• James Kyle (thejameskyle)
• Justin Ridgewell (jridgewell)
• Logan Smyth (loganfsmyth)