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JerryScript 2.2.0
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@galpeter galpeter released this 11 Feb 13:56
v2.2.0
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Learn about vigilant mode.

The JerryScript team proudly announces JerryScript 2.2.0 release.

A short list of changes/improvements:

  • Improved ES6 (ES2015) support
    • Kangax ES2015 coverage improved from 34% to 81%
    • Some notable new features:
      • Spread syntax for iterable objects
      • Array and object destructuring
      • Lexical block scoping (let)
      • Generators
      • Well-known symbols
  • General performance and memory improvements (ARMv7 RPi2)
    • Significant speed-up in match, search, split and replace operations with Strings and RegExps
    • Significant improvements in garbage collection when having deeply nested objects
    • Improved prototype lookup for primitive values
    • Optimized array built-in methods for non-sparse arrays
    • Small overall stack usage improvement
  • Added new API functions
  • Revised a few feature guards that can be used in profiles
  • Enabled the usage of API functions in native free callbacks
  • Improved RegExp compatibility with web browsers
  • 231 commits by 18 authors since JerryScript 2.1.0
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