Vue Release Notes

Bug Fixes

• compiler-sfc: ignore comment delimiters inside strings and url() when parsing css vars (#15548) (2fde323)
• compiler-sfc: prepend semicolon for await in switch case (#15498) (9a1df69), closes #15495
• compiler-sfc: restore await scope when leaving nested blocks (5409708), closes #15465
• compiler-sfc: reuse parsed parent configs across tsconfig walks (fix #15478) (#15480) (d6febaa)
• hydration: run leave hooks for hydration placeholders (#15431) (5dda192)
• reactivity: preserve readonly wrappers in array copy methods (#15469) (599f35b)
• runtime-core: unmount v-once children after parent rerenders (#15435) (d720338)
• shared: handle circular references in looseEqual (#15499) (718f782), closes #15496
• shared: preserve comment-like text in style values (#15471) (b9456cb)
• suspense: don't drop nested suspense patches during hydration (#15429) (76d42dc)
• suspense: keep the boundary pending while its branch is patched (#15411) (bfcfe9e), closes #7506
• suspense: patch a hydrating boundary's pending branch in place (#15432) (2cde6f7)
• suspense: unmount the DOM an interrupted async component claimed (#15430) (fb9b45c)
• types: keep optional props when a runtime prop uses a generic PropType (#15523) (243aabc), closes #9546

Bug Fixes

• hydration: handle async component unmount before lazy hydration (#15252) (6e1814a)
• hydration: handle moving unresolved async fragment (#15263) (a72036f)
• runtime-core: avoid caching unmounted suspense children (#15291) (b535917), closes #15288
• runtime-core: keep .trim result when combined with .number v-model modifier (#15346) (f8d42e1)
• runtime-core: resolve $el for dev root comment fragment (#15313) (8654f35), closes #12680
• runtime-dom: support !important on CSS custom properties in style binding (#15348) (31da934)
• server-renderer: reject CR in attribute names (#15266) (a2b40db)
• shared: correctly compare Map and Set values (#15328) (ef82a26), closes #15320
• suspense: don't treat the leaving branch as the fallback while its mount is pending (#15333) (cd19745), closes #15332
• v-model: re-sync select when model is overridden in change handler (#15298) (6eaecc1), closes #10505

Bug Fixes

• compiler-core: preserve vnode lifecycle in stable v-for (#11682) (02421cd), closes #9239 #12569
• compiler-sfc: handle transformed template AST after cache invalidation (#15136) (a4440c0), closes #15126 #15128
• custom-element: preserve nested async mount order (#15154) (71f9ff5), closes #15153
• custom-element: warn when props override native properties (#12125) (22b53ea), closes #12124
• runtime-core: avoid re-fetching resource props with unchanged values (#15105) (a7513a1)
• runtime-core: restore SSR setup state when handling async setup result (#15114) (b6191cb), closes #15113
• scheduler: avoid stack overflow when flushing very large post cb arrays (#15143) (c04a45d), closes #15142
• slots: handle nullish v-bind slot props (#15177) (2506700)
• ssr: normalize hidden states during hydration (#13125) (4e467d7)
• transition: support transition to teleport component child (#11959) (77061fe), closes #11910
• types: preserve defineModel inference with factory defaults (#15097) (0516c43), closes #15096
• v-model: preserve text input before hydration (#14411) (2468464), closes #14403

Bug Fixes

• compiler-core: avoid leaking slot branch keys (#15051) (20c9d26), closes #15048
• hydration: pass namespace when patching dynamic props (#15082) (e0d2723), closes #15081 #15050
• reactivity: handle effect removal during scope stop (#15084) (378f978), closes #15083
• runtime-core: skip lazy hydration for detached roots (#15092) (97f3525), closes #15091
• runtime-core: unwind dangling blocks when slot content throws (#15071) (ddc132d), closes #15070
• runtime-dom: respect current select model type (#15010) (eb89e93), closes #15009
• server-renderer: handle errors in optimized component renders (#12601) (474907c), closes #12575
• server-renderer: remove package dependency cycle (#15063) (4d35eca)
• shared: prevent SSR comment escaping from creating closing delimiters (#15045) (bd962bb)
• types: don't constrain component $el type to Element (#15040) (164460a)

Bug Fixes

• compiler-core: correct filter rewrite recursion (#14959) (be7ce31)
• hydration: force patch dynamic props when hydrating (#9083) (024cf06), closes #9033
• hydration: respect data-allow-mismatch on conditional branches (#12801) (164af63), closes #12782
• reactivity: avoid triggering effects when set fails (#14964) (e450973)
• runtime-core: handle non-isomorphic block element update (#15002) (932ddd0), closes #6385
• runtime-core: normalize function children for elements and Teleport (#9108) (2f374cd), closes #9107
• runtime-core: pause tracking when invoking function refs (#14985) (3ac052b)
• runtime-core: preserve once event listener name (#8341) (87b73b6), closes #8342
• runtime-dom: preserve option modifier event names (#8338) (4b659e6), closes #8334
• ssr: dedupe inherited scope ids during vnode rendering (#15005) (027da6b), closes #12159 #12175
• ssr: resolve nested async teleport content (#9431) (31d0f23), closes #6207
• teleport: handle teleport unmount edge case (#12705) (671997a), closes #12702
• types: support named tuple emits (#12676) (232f402), closes #12673
• types: validate defineModel defaults (#14968) (747f57e), closes #14966

Bug Fixes

• compiler-core: avoid crash on CDATA at the document root (#14916) (0ea17e2)
• compiler-core: prefix dynamic keys on v-memo elements (#14922) (68e978e), closes #14920
• compiler-sfc: handle vue-ignore on leading intersection/union type (#14950) (0dcd225), closes #12254
• compiler-sfc: respect var hoisting in props destructure (48ad452)
• reactivity: preserve watch callback return value when wrapped for once: true (#14902) (450a8a8)
• runtime-core: add dev warning for silent catch in compat mode and fix test description typo (#14891) (db3e117)
• runtime-core: force model update when reverted before sync (#14897) (7f76378), closes #13524
• runtime-core: skip async component callbacks after unmount (#14911) (5300ead)
• transition: avoid move transition for hidden v-show group children (#14895) (c11f6ee), closes #14894
• watch: trigger immediate callback for empty sources (#14914) (1f2ca7e), closes #14898

Bug Fixes

• compiler-core: avoid double processing v-for keys with v-memo (#14861) (34a0ded), closes #14859
• compiler-sfc: resolve top-level exports from files registered as global types (#14805) (3d077f2), closes nuxt/nuxt#33694
• runtime-core: avoid repeated hydration mismatch checks (#14857) (170fc95), closes #14855
• runtime-core: skip idle persisted transition hooks in keep-alive moves (#14865) (80fc139), closes #14031
• server-renderer: propagate sync errors from ssrRenderSuspense (#14804) (4760997), closes nuxt/nuxt#28162
• teleport: skip child unmount when pending mount discarded (#14876) (#14877) (584beb1)

Performance Improvements

• reactivity: skip type checks for cached proxies (#14860) (5734fe9)
• runtime-dom: optimize array event handler dispatch (#14828) (bb18dc8)
• server-renderer: avoid materializing iterables in ssrRenderList (#14821) (1b7a2cc)

Bug Fixes

• compiler-sfc: infer Vue ref wrapper types when source is unresolvable (#14758) (7f46fd4), closes #14729
• compiler-sfc: preserve hash hrefs on <image> elements (#14756) (090b2e3)
• compiler-sfc: resolve type re-exports inside declare global (#14766) (acfffe3)
• reactivity: prevent orphan effect when created in a stopped scope (#14778) (c8e2d4a), closes #14777
• runtime-core: avoid symbol coercion during props validation (#8539) (23d4fb5), closes #8487
• suspense: avoid DOM leak with out-in transition in v-if fragment (#14762) (9667e0d), closes #14761

Bug Fixes

• compiler-sfc: handle nested :deep in selector pseudos (#14725) (bb9d265), closes #14724
• reactivity: unlink effect scopes on out-of-order off (#14734) (e7659be), closes #14733
• runtime-dom: preserve textarea resize dimensions (#14747) (11fb2fd), closes #14741
• teleport: don't move teleport children if not mounted (#14702) (6a61f44), closes #14701
• transition: preserve placeholder for conditional explicit default slots (#14748) (45990ce), closes #14727