Vue.Js Core Updates & Release Notes

Name: Vue.Js Core
Brand: Vue

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18 updates curated from 1 source by the Releasebot Team. Last updated: Jun 26, 2026

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Jun 25, 2026
Date parsed from source:
Jun 25, 2026

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Jun 26, 2026
Vue.Js Core by Vue

3.5.39

Vue.Js Core improves stability with bug fixes across compiler-core, hydration, runtime-core, SSR, Teleport, reactivity, and types. The update tightens event handling, async rendering, and model validation while smoothing edge cases for a more reliable Vue experience.
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

Original source
Jun 11, 2026
Date parsed from source:
Jun 11, 2026

First seen by Releasebot:
Jun 11, 2026
Vue.Js Core by Vue

3.5.38

Vue.Js Core releases 3.5.38 with a new patch update.

3.5.38 (2026-06-11)
Original source
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Jun 11, 2026
Date parsed from source:
Jun 11, 2026

First seen by Releasebot:
Jun 11, 2026
Vue.Js Core by Vue

3.5.37

Vue.Js Core releases 3.5.37 with a new patch update.

3.5.37 (2026-06-11)
Original source
Jun 11, 2026
Date parsed from source:
Jun 11, 2026

First seen by Releasebot:
Jun 11, 2026
Vue.Js Core by Vue

3.5.36

Vue.Js Core ships a round of bug fixes across compiler-core, compiler-sfc, runtime-core, reactivity, transition, and watch, improving stability, warning behavior, and update handling while preventing several crashes and edge-case regressions.
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

Original source
May 27, 2026
Date parsed from source:
May 27, 2026

First seen by Releasebot:
May 27, 2026
Vue.Js Core by Vue

3.5.35

Vue.Js Core releases bug fixes and performance improvements across compiler-core, compiler-sfc, runtime-core, server-renderer, teleport, reactivity, and runtime-dom, improving hydration checks, SSR error handling, event dispatch, and overall rendering efficiency.
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)

Original source
Similar to Vue.Js Core with recent updates:
May 6, 2026
Date parsed from source:
May 6, 2026

First seen by Releasebot:
May 6, 2026
Vue.Js Core by Vue

3.5.34

Vue.Js Core ships bug fixes across compiler-sfc, reactivity, runtime-core, and suspense, improving type handling, href preservation, props validation, and DOM leak prevention for a smoother Vue experience.
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

Original source
Apr 22, 2026
Date parsed from source:
Apr 22, 2026

First seen by Releasebot:
Apr 22, 2026
Vue.Js Core by Vue

3.5.33

Vue.Js Core fixes compiler-sfc, reactivity, runtime-dom, teleport, and transition issues, improving selector handling, effect scope cleanup, textarea resizing, teleport behavior, and slot placeholders.
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

Original source
Apr 3, 2026
Date parsed from source:
Apr 3, 2026

First seen by Releasebot:
Apr 3, 2026
Vue.Js Core by Vue

3.5.32

Vue.Js Core fixes runtime-core and Teleport edge cases, improves TypeScript support for customRef and shallowReactive, and reverts an SSR cleanup change to stabilize rendering behavior.
Bug Fixes

runtime-core: prevent currentInstance leak into sibling render during async setup re-entry (#14668) (f166353), closes #14667

teleport: handle updates before deferred mount (#14642) (32b44f1), closes #14640

types: allow customRef to have different getter/setter types (#14639) (e20ddb0)

types: use private branding for shallowReactive (#14641) (302c47a), closes #14638 #14493

Reverts

Revert "fix(server-renderer): cleanup component effect scopes after SSR render" (#14674) (219d83b), closes #14674 #14669

Original source
Mar 25, 2026
Date parsed from source:
Mar 25, 2026

First seen by Releasebot:
Mar 25, 2026
Vue.Js Core by Vue

3.5.31

Vue.Js Core fixes a broad set of compiler, runtime, Suspense, Teleport, SSR, and type issues, improving asset URL handling, v-model behavior, event merging, and overall stability across the framework.
Bug Fixes

compiler-sfc: allow Node.js subpath imports patterns in asset urls (#13045) (95c3356), closes #9919

compiler-sfc: support template literal as defineModel name (#14622) (bd7eef0), closes #14621

reactivity: normalize toRef property keys before dep lookup + improve types (#14625) (1bb28d0), closes #12427 #12431

runtime-core: invalidate detached v-for memo vnodes after unmount (#14624) (560def4), closes #12708 #12710

runtime-core: preserve nullish event handlers in mergeProps (#14550) (5725222)

runtime-core: prevent merging model listener when value is null or undefined (#14629) (b39e032)

runtime-dom: defer teleport mount/update until suspense resolves (#8619) (88ed045), closes #8603

runtime-dom: handle activeElement check in Shadow DOM for v-model (#14196) (959ded2)

server-renderer: cleanup component effect scopes after SSR render (#14548) (862f11e)

suspense: avoid unmount activeBranch twice if wrapped in transition (#9392) (908c6ad), closes #7966

suspense: update suspense vnode's el during branch self-update (#12922) (a2c1700), closes #12920

transition: skip enter guard while hmr updating (#14611) (be0a2f1), closes #14608

types: prevent shallowReactive marker from leaking into value unions (#14493) (3b561db), closes #14490

Original source
Mar 9, 2026
Date parsed from source:
Mar 9, 2026

First seen by Releasebot:
Mar 10, 2026
Vue.Js Core by Vue

3.5.30

Vue releases a solid bug fix update tackling edge cases in compat deps, custom-element styling order and shadow dom handling, reactive Set and array edge cases, SSR watch timing, and TS generic typing fixes. Aims to tighten runtime-core behavior, SSR reliability, and type safety.
Bug Fixes

compat: add entities to @vue/compat deps to fix CJS edge cases (#12514) (e725a67), closes #10609

custom-element: ensure child component styles are injected in correct order before parent styles (#13374) (1398bf8), closes #13029

custom-element: properly locate parent when slotted in shadow dom (#12480) (f06c81a), closes #12479

custom-element: should properly patch as props for vue custom elements (#12409) (740983e), closes #12408

reactivity: avoid duplicate raw/proxy entries in Set.add (#14545) (d943612)

reactivity: fix reduce on reactive arrays to preserve reactivity (#12737) (16ef165), closes #12735

reactivity: handle Set with initial reactive values edge case (#12393) (5dc27ca), closes #8647

runtime-core: warn about negative number in v-for (#12308) (9438cc5)

ssr: prevent watch from firing after async setup await (#14547) (6cda71d), closes #14546

types: make generics with runtime props in defineComponent work (fix #11374) (#13119) (cea3cf7), closes #13763

types: narrow useAttrs class/style typing for TSX (#14492) (bbb8977), closes #14489

Original source
Feb 24, 2026
Date parsed from source:
Feb 24, 2026

First seen by Releasebot:
Feb 27, 2026
Vue.Js Core by Vue

3.5.29

Vue core bug fixes boost stability and rendering correctness. It fixes an instance leak in withAsyncContext, makes server side className rendering safe, and prevents enter during an ongoing leave transition. A solid stability and rendering correctness patch.
Bug Fixes

runtime-core: prevent instance leak in withAsyncContext (#14445) (702284f), closes nuxt/nuxt#33644

server-renderer: render className as escaped string (#14469) (da6690c)

transition: prevent enter if leave is in progress (#14443) (df059f8), closes #12091 #12133

Original source
Feb 9, 2026
Date parsed from source:
Feb 9, 2026

First seen by Releasebot:
Feb 12, 2026
Vue.Js Core by Vue

3.5.28

Vue.js core delivers a broad bug fix release touching transitions, SFC file resolution, reactivity flags, and runtime behavior. The update sharpens reliability in async updates, element handling, and edge cases like teleport targets and style changes.
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

Original source
Jan 19, 2026
Date parsed from source:
Jan 19, 2026

First seen by Releasebot:
Jan 19, 2026
Vue.Js Core by Vue

3.5.27

Vue delivers a bug fix update across compilation, runtime, and server rendering. Key fixes include correct for loop destructuring, indexed access types, and inherited iterator methods, plus safer className handling and skipping patching reserved props.
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

Original source
Dec 18, 2025
Date parsed from source:
Dec 18, 2025

First seen by Releasebot:
Jan 8, 2026
Vue.Js Core by Vue

3.5.26

Vue.js core patches fix compatibility, SSR, and runtime edge cases while boosting performance. Highlights include corrected v-model and hmr handling, safer keep-alive caching, and a faster line/column mapping pass.
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)

Original source
Nov 24, 2025
Date parsed from source:
Nov 24, 2025

First seen by Releasebot:
Jan 8, 2026
Vue.Js Core by Vue

3.5.25

Vue core bug fixes streamline compiler comment and whitespace behavior, warn on provide after mounting, preserve readonly status for iterated reactive items, fix ref unwrap edge cases, and tidy suspense fallback cleanup while preserving typing.
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

Original source