Misc:

• Add autofix for colon-style type parameter bounds to extends-style type parameter bounds

Notable bug fixes:

• Fixed analysis of number literal keys in object destructuring rest type computation

New Features:

• Adds a new stylex_shorthand_prop flowconfig option that enables syntactic sugar for StyleX on lowercase (intrinsic) JSX elements. When set to a prop name (e.g. stylex_shorthand_prop=sx), <div sx={[styles.foo, styles.bar]} /> desugars to <div {...stylex.props(styles.foo, styles.bar)} />.

Notable bug fixes:

• Fix #9357

Misc:

• Flow no longer errors on colon-style extends and now supports extends by default, previously gated by the ts_syntax option.
• Add format, and test commands to LLM rules

IDE:

• Fixed #9350

IDE:

• For React autoimport, it will now always be in the form of import * as React from 'react'

Misc:

• Minor changes to the flow-upgrade script

Parser:

• Support export declare, like declare export
• For component in implicit declare context, the ast we produce will include implicitDeclare: true

Likely to cause new Flow errors:

• Imported functions that conform to hook naming conventions will always be treated like hooks. As a result, new errors might be surfaced. e.g. conditional hook call

Parser:

• flow_parser.js now allows you to pass in filename in the option object

New Features:

• declare keyword can be omitted for declare function under declaration context (.flow file, declare module, declare namespace)

Parser:

• Fix parsing of experimental record expressions that are multiline