🏝 4.43.4 (2026-04-13)

Bug Fixes

• cache host refs in public render() method (#6674) (7dd8ea7)
• compiler: set log file path when writeLog is enabled (#6655) (3d95083), closes #6632
• runtime: normalize legacy watcher metadata for backward compatibility (#6676) (db26aba)
• runtime: skip setter when removing reflected bool attr (#6673) (6c8a3b6), closes #6672
• utils: handle Unicode characters in serializeProperty (#6654) (000ddb9), closes #6643

New Contributors

• @cyphercodes made their first contribution in #6654
• @AlyssonT made their first contribution in #6673

Full Changelog: v4.43.3...v4.43.4

🐕 4.43.3 (2026-03-19)

• feat(testing): deprecate all integrated testing options by @johnjenkins in #6642
• fix(mock-doc): updated node.prepend to work even if there are no existing children by @kyleMessnerLillyContractor in #6640

New Contributors

• @kyleMessnerLillyContractor made their first contribution in #6640

Full Changelog: v4.43.2...v4.43.3

🌙 4.43.2 (2026-02-27)

Bug Fixes

• compiler: mixin jsx processing (#6615) (ccda746)
• compiler: proper discovery and processing of external mixins / classes (#6620) (0ee951e)
• dist-custom-elements: stop render function being stripped from imports (#6623) (cd33ccb)
• mock-doc: add missing part setter to MockElement (#6612) (abfdd57)
• runtime: init prop reactivity when ele.prop === instance.prop (#6614) (ad6a344)
• runtime: mixin get / set @Prop infinite loop (#6618) (11201b5)
• types: provide warnings for ts 4094; anon classes may not be private or protected (#6613) (3fbc441)
• types: raise typescript errors even without components.d.ts (#6616) (827d0d6)

New Contributors

• @hyyan made their first contribution in #6612

Full Changelog: v4.43.1...v4.43.2

🏹 4.43.1 (2026-02-20)

Bug Fixes

• compiler: update rollup to fix watch hang (#6603) (205856b), closes #6602
• declarations: add rest params to h() (#6604) (4d322a7), closes #6181
• hmr: non-shadow component styles within shadow parent (#6601) (fc14281)

New Contributors

• @adrianschmidt made their first contribution in #6603

Full Changelog: v4.43.0...v4.43.1

👒 4.43.0 (2026-02-13)

Bug Fixes

• compiler: JSX Runtime Hydration Failure (#6595) (8a34ac5)

Features

• dist-custom-elements: new autoLoader option (#6594) (e130b7a)

Full Changelog: v4.42.1...v4.43.0

🌍 4.42.1 (2026-02-06)

Bug Fixes

• compiler: make available resolveVar for import (#6588) (e4eeb37)
• compiler: scrape build-conditionals from FunctionalComponents (#6586) (d63bf5d)
• css: make scoped 'slotted' selector replacement less greedy (#6580) (10e6184)
• docs: preserve css properties outside of production builds (#6579) (69d331e)
• mock-doc: add global instanceof HTMLElement / SVGElement plus new MockLabelElement (#6581) (756b7aa)
• runtime: dist parent should hydrate even when children fail (#6583) (50ad901)
• runtime: call componentShouldUpdate for every prop changed (#6587) (dd4d2e6)
• types: don't include @internal properties in dist build required fields (#6585) (6136a67)

Full Changelog: v4.42.0...v4.42.1

🚑 4.42.0 (2026-02-01)

Bug Fixes

• runtime: use strict comparison when updating properties (#6573) (e8dfc09)
• types: css import type (#6569) (60802fc)

Features

• compiler: CustomStateSet support - Setup docs | Readme docs - (#6574) (cce1e23)
• docs: new docs-custom-elements-manifest output - Read the docs - (#6568) (df9d198)
• hydrate-script: add generatePackageJson option to dist-hydrate-script (#6571) (f2dbed7)
• jsx: attr: / prop: prefixes - Read the docs - (#6575) (aa599da)
• runtime: Remove redundant SSR style elements after adoptedStyleSheets adoption (#6576) (bc90887)

New Contributors

• @SaiGovardhana made their first contribution in #6573
• @alexischarp made their first contribution in #6571

Full Changelog: v4.41.3...v4.42.0

🎇 4.41.3 (2026-01-23)

Bug Fixes

• build: auto add name, form and disabled to formAssociated components (#6561) (4e19b99)
• runtime: ref callback order (#6552) (e006cf7)
• runtime: PropSerialize not called for JSX props before instance creation (#6558) (88b3315)
• ssr: support jsxImportSource within hydrate-script output (#6563) (5ca9668)
• testing: initialise mock-doc childNodes with get / set. Allows patching during tests (#6564) (dbaa9fb)

Full Changelog: v4.41.2...v4.41.3

🐝 4.41.2 (2026-01-16)

Bug Fixes

• mock-doc: handle undefined delay in setTimeout/setInterval (#6539) (0d3a068)
• runtime: bundle size (#6549) (3de7ba6)
• runtime: style elements use textContent for TrustedHTML assignment (#6544) (a708bdc)
• runtime: various jsx-runtime behaviours (#6538) (8f9efc5)
• ssr: style re-attachment, replaying init animations (#6540) (43608fa)
• testing: support jsxImportSource in internal jest test runner (#6547) (6ac3b51)

Full Changelog: v4.41.1...v4.41.2

🌴 4.41.1 (2026-01-08)

Bug Fixes

• runtime: fix jsxImportSource Fragment handling (#6531) (953346e)
• ssr: remove global hack to stop duplicate tagTransformer instances (#6529) (4bb24de)
• types: add IntrinsicElements to jsximportSource runtime definitions (#6532) (0fa0bc8)
• types: FunctionalComponent can return null for jsxImportSource (#6533) (82b47b8)

Full Changelog: v4.41.0...v4.41.1