facebook/metro v0.83.4

on GitHub

• [Feature]: Inline Platform.OS/Platform.select for variables bound to require('react-native'). (#1641 by @thymikee)
• [Feature]: Add a keepalive mechanism to Fast Refresh connections to improve stability in some proxied setups (f7ab6f9 by @vzaidman)
• [Fix]: Undo accidentally increased strictness of content-type for /symbolicate (#1630 by @MorvanL)
• [Fix]: metro-babel-transformer: Don't set BABEL_ENV as a side-effect (de59fcc by @robhogan)
• [Fix]: metro-config: Fix absolute path error on Windows masking actionable config loading errors (#1620 by @kitten)
• [Fix]: Only return a symbolicated code frame for files that are in the project (e31e11c by @motiz88)
• [Fix]: Only serve assets that are in the project (#1643 by @fabriziocucci)
• [Performance]: Use worker threads for processing file changes on startup, significantly faster on Windows. (#1639 by @robhogan)
• [Types]: Automatic, comprehensive TypeScript types all packages. (#1611, #1648, #1621, etc by @nickhudkins, @pafry7 and @robhogan)

Full Changelog: v0.83.3...v0.83.4