What's Changed
- core/common: Store SwfMovie behind a Gc instead of an Arc (2/2) by @Lord-McSweeney in #24850
- avm1: Migrate Error and AsSetupError to ActionScript by @relrelb in #24853
- web: Use pristine built-ins instead of swapping the page's Map by @kjarosh in #24854
- web: Don't clip unmute overlay text by @kjarosh in #24857
- web: Localize player UI using data-i18n-* attributes by @kjarosh in #24856
- web: Update player UI when the preferred languages change by @kjarosh in #24858
Full Changelog: nightly-2026-10-08...nightly-2026-10-09