Vue.Js Core Release Notes

Bug Fixes

• transition: avoid unexpected cancelled parameter in transition done callback (#14391) (6798853)
• compiler-sfc: add resolution trying for .mts/.cts files (#14402) (c09d41f), closes vuejs/router#2611
• compiler-sfc: no params were generated when using withDefaults (#12823) (b0a1f05), closes #12822
• reactivity: add __v_skip flag to EffectScope to prevent reactive conversion (#14359) (48b7552), closes #14357
• runtime-core: avoid retaining el on cached text vnodes during static traversal (#14419) (4ace79a), closes #14134
• runtime-core: prevent child component updates when style remains unchanged (#12825) (57866b5), closes #12826
• runtime-core: properly handle async component update before resolve (#11619) (e71c26c), closes #11617
• runtime-dom: handle null/undefined handler in withModifiers (#14362) (261de54), closes #14361
• teleport: properly handling disabled teleport target anchor (#14417) (d7bcd85), closes #14412
• transition-group: correct move translation under scale via element rect (#14360) (0243a79), closes #14356
• useTemplateRef: don't update setup ref for useTemplateRef key (#12756) (fc40ca0), closes #12749

Bug Fixes

• compile-sfc: correctly handle variable shadowing in for loop for defineProps destructuring. (#14296) (6a1bb50), closes #14294
• compiler-sfc: handle indexed access types in declare global blocks (#14260) (e4091fe), closes #14236
• compiler-sfc: use correct scope when resolving indexed access types from external files (#14297) (f0f0a21), closes #14292
• reactivity: collection iteration should inherit iterator instance methods (#12644) (3c8b2fc), closes #12615
• runtime-core: skip patching reserved props for custom elements (#14275) (19cc7e2), closes #14274
• server-renderer: use ssrRenderClass helper for className attribute (#14327) (a4708f3)
• ssr: handle v-bind modifiers during render attrs (#14263) (c2f5964), closes #14262

Bug Fixes

• compat: fix compat handler of draggable (#12445) (ed85953), closes #12444
• compat: handle v-model deprecation warning with missing appContext (#14203) (945a543), closes #14202
• compiler-sfc: demote const reactive bindings used in v-model (#14214) (e24ff7d), closes #11265 #11275
• compiler-ssr: handle ssr attr fallthrough when preserve whitespace (#12304) (4783118), closes #8072
• hmr: handle cached text node update (#14134) (69ce3c7), closes #14127
• keep-alive: use resolved component name for async components in cache pruning (#14212) (dfe667c), closes #14210
• runtime-core: ensure correct anchor el for deeper unresolved async components (#14182) (f5b3bf2), closes #14173
• runtime-core: handle patch stable fragment edge case (#12411) (94aeb64), closes #12410
• runtime-core: pass component instance to flushPreFlushCbs on unmount (#14221) (e857e12), closes #14215

Performance Improvements

• compiler-core: use binary-search to get line and column (#14222) (1904053)

Bug Fixes

• compiler: share logic for comments and whitespace (#13550) (2214f7a)
• provide: warn when using provide after mounting (#13954) (247b2c2), closes #13921 #13924
• reactivity: correctly wrap iterated array items to preserve their readonly status (#14120) (301020b)
• reactivity: toRef edge cases for ref unwrapping (#12420) (0d2357e)
• runtime-core: keep options API typing intact when expose is used (#14118) (8f82f23), closes #14117 vuejs/language-tools#5069
• suspense: defer clearing fallback vnode el in case it has dirs (#14080) (c0f63dd), closes #14078

Bug Fixes

• compiler-core: correctly handle ts type assertions in expressions (#13397) (e6544ac), closes #13395
• compiler-core: fix v-bind shorthand handling for in-DOM templates (#13933) (b3cca26), closes #13930
• compiler-sfc: resolve numeric literals and template literals without expressions as static property key (#13998) (75d44c7)
• compiler-ssr: textarea with v-text directive SSR (#13975) (006a0c1)
• compiler: using guard instead of non-nullish assertion (#13982) (dcc6f36)
• custom-element: batch custom element prop patching (#13478) (c13e674), closes #12619
• custom-element: optimize slot retrieval to avoid duplicates (#13961) (84ca349), closes #13955
• hydration: avoid mismatch during hydrate text with newlines in interpolation (#9232) (6cbdf78), closes #9229
• runtime-core: pass props and children to loadingComponent (#13997) (40c4b2a)
• runtime-dom: ensure iframe sandbox is handled as an attribute to prevent unintended behavior (#13950) (5689884), closes #13946
• suspense: clear placeholder and fallback el after resolve to enable GC (#13928) (f411c66)
• transition-group: use offsetLeft and offsetTop instead of getBoundingClientRect to avoid transform scale affect animation (#6108) (dc4dd59), closes #6105
• v-model: handle number modifier on change (#13959) (8fbe48f), closes #13958

Bug Fixes

• compiler-core: identifiers in switch-case should not be inferred as references (#13923) (5953c9f)
• compiler-dom: nodes with v-once shouldn't be stringified (#13878) (95c1975)
• compiler-sfc: add support for @vue-ignore in runtime type resolution (#13906) (ba7f7f9)
• compiler-sfc: enhance inferRuntimeType to support TSMappedType with indexed access (#13848) (e388f1a), closes #13847
• compiler-sfc: ensure css custom properties do not start with a digit (#13870) (9c27951)
• compiler-sfc: ensure props bindings register before compiling template (#13922) (abd5638), closes #13920
• compiler-ssr: ensure v-show has a higher priority in SSR (#12171) (836b829), closes #12162
• custom-element: properly mount multiple Teleports in custom element component w/ shadowRoot false (#13900) (5e1e791), closes #13899
• custom-element: set prop runs pending mutations before disconnect (#13897) (c4a88cd), closes #13315
• custom-element: use PatchFlags.BAIL for slot when props are present (#13907) (5358bca), closes #13904
• reactivity: respect readonly during ref unwrapping (#13905) (aba7fed), closes #13903
• reactivity: update iterator to check for completion instead of value presence (#13761) (2078f8b)
• runtime-core: simplify block-tracking disabling in h helper (#13841) (75220c7)
• transition-group: run forceReflow on the correct document (fix #13849) (#13853) (1be5ddf)
• types: more precise types for Events and added missing definitions (#9675) (8bb8fb2)
• types: set dom stub type to never instead of {} (#13915) (8620a61), closes #11564
• types: widen directive arg type from string to any (#13758) (4b71706), closes #13757

Features

• custom-element: allow specifying additional options for shadowRoot in custom elements (#12965) (47e628d), closes #12964

Reverts

• Revert "fix(hmr): prevent VUE_HMR_RUNTIME from being overwritten by vue runtime in 3rd-party libraries" (#13925) (6b68f72), closes #13925

Bug Fixes

• compiler-core: force dynamic slots when slot referencing scope vars (#9427) (99d54b2), closes #9380
• compiler-sfc: check lang before attempt to compile script (#13508) (55922ff), closes #8368
• compiler-sfc: support ${configDir} in paths for TypeScript 5.5+ (#13491) (8696e34), closes #13484
• compiler-sfc: support global augments with named exports (#13789) (35da3c6)
• custom-element: prevent defineCustomElement from mutating the options object (#13791) (e322436)
• hmr: prevent __VUE_HMR_RUNTIME__ from being overwritten by vue runtime in 3rd-party libraries (#13817) (1392734), closes vitejs/vite-plugin-vue#644
• hmr: prevent update unmounting component during HMR reload (#13815) (ef20b86), closes vitejs/vite-plugin-vue#599
• runtime-core: disable tracking block in h function (#8213) (8f6b505), closes #6913
• runtime-core: use separate emits caches for components and mixins (#11661) (15fc75f)
• Suspence: handle Suspense + KeepAlive HMR updating edge case (#13076) (5d75a17), closes #13075
• Teleport: hydrate disabled Teleport with undefined target (#11235) (00978f7), closes #11230
• templateRef: prevent unnecessary set ref on dynamic ref change or component unmount (#12642) (93ba107), closes #12639
• watch: use maximum depth for duplicates (#13434) (f2699a5)

Performance Improvements

• improve regexp performance with non-capturing groups (#13567) (1e8b65a)