facebook/flow v0.139.0

on GitHub

New Features:

• Support for this annotations in functions, like function f(this: {foo: string}, param1: string): string { return this.foo; }
• The experimental.abstract_locations config option is now true by default, as it enables significant performance improvements. This option is now deprecated and will be removed in a coming version.

Notable bug fixes:

• Fixed a false positive when a bounded generic like K: string flows into $Keys<{[K]: ...}>
• Fixed a false positive when a bounded generic like K: 'literal' is checked against itself like k === 'literal'
• Fixed autocomplete inside of JSX attribute values
• Fixed autocomplete of properties of interfaces

Misc:

• Updated flow-remove-types to support this parameters
• Added SpeechRecognition definitions (thanks @ayshiff)