Merge branch 'main' into edison/fix/hmrRootReload

.github/workflows/autofix.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4
@@ -31,4 +31,4 @@ jobs:
       - name: Run prettier
         run: pnpm run format
 
-      - uses: autofix-ci/action@ff86a557419858bb967097bfc916833f5647fa8c
+      - uses: autofix-ci/action@551dded8c6cc8a1054039c8bc0b8b48c51dfc6ef

.github/workflows/canary-minor.yml

@@ -17,7 +17,7 @@ jobs:
           ref: minor
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4

.github/workflows/canary.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4

.github/workflows/size-data.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4

.github/workflows/size-report.yml

@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4
@@ -37,7 +37,7 @@ jobs:
         run: pnpm install
 
       - name: Download Size Data
-        uses: dawidd6/action-download-artifact@v6
+        uses: dawidd6/action-download-artifact@v9
         with:
           name: size-data
           run_id: ${{ github.event.workflow_run.id }}
@@ -56,7 +56,7 @@ jobs:
           path: temp/size/base.txt
 
       - name: Download Previous Size Data
-        uses: dawidd6/action-download-artifact@v6
+        uses: dawidd6/action-download-artifact@v9
         with:
           branch: ${{ steps.pr-base.outputs.content }}
           workflow: size-data.yml

.github/workflows/test.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4
@@ -35,7 +35,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4
@@ -63,7 +63,7 @@ jobs:
           key: chromium-${{ hashFiles('pnpm-lock.yaml') }}
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4
@@ -88,7 +88,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Install pnpm
-        uses: pnpm/action-setup@v4.0.0
+        uses: pnpm/action-setup@v4.1.0
 
       - name: Install Node.js
         uses: actions/setup-node@v4

.node-version

@@ -1 +1 @@
-20
+22.14.0

CHANGELOG.md

@@ -8,7 +8,7 @@
 * **custom-element:** avoid triggering mutationObserver when relecting props ([352bc88](https://github.com/vuejs/core/commit/352bc88c1bd2fda09c61ab17ea1a5967ffcd7bc0)), closes [#12214](https://github.com/vuejs/core/issues/12214) [#12215](https://github.com/vuejs/core/issues/12215)
 * **deps:** update dependency postcss to ^8.4.48 ([#12356](https://github.com/vuejs/core/issues/12356)) ([b5ff930](https://github.com/vuejs/core/commit/b5ff930089985a58c3553977ef999cec2a6708a4))
 * **hydration:** the component vnode's el should be updated when a mismatch occurs. ([#12255](https://github.com/vuejs/core/issues/12255)) ([a20a4cb](https://github.com/vuejs/core/commit/a20a4cb36a3e717d1f8f259d0d59f133f508ff0a)), closes [#12253](https://github.com/vuejs/core/issues/12253)
-* **reactiivty:** avoid unnecessary watcher effect removal from inactive scope ([2193284](https://github.com/vuejs/core/commit/21932840eae72ffcd357a62ec596aaecc7ec224a)), closes [#5783](https://github.com/vuejs/core/issues/5783) [#5806](https://github.com/vuejs/core/issues/5806)
+* **reactivity:** avoid unnecessary watcher effect removal from inactive scope ([2193284](https://github.com/vuejs/core/commit/21932840eae72ffcd357a62ec596aaecc7ec224a)), closes [#5783](https://github.com/vuejs/core/issues/5783) [#5806](https://github.com/vuejs/core/issues/5806)
 * **reactivity:** release nested effects/scopes on effect scope stop ([#12373](https://github.com/vuejs/core/issues/12373)) ([bee2f5e](https://github.com/vuejs/core/commit/bee2f5ee62dc0cd04123b737779550726374dd0a)), closes [#12370](https://github.com/vuejs/core/issues/12370)
 * **runtime-dom:** set css vars before user onMounted hooks ([2d5c5e2](https://github.com/vuejs/core/commit/2d5c5e25e9b7a56e883674fb434135ac514429b5)), closes [#11533](https://github.com/vuejs/core/issues/11533)
 * **runtime-dom:** set css vars on update to handle child forcing reflow in onMount ([#11561](https://github.com/vuejs/core/issues/11561)) ([c4312f9](https://github.com/vuejs/core/commit/c4312f9c715c131a09e552ba46e9beb4b36d55e6))

README.md

@@ -34,7 +34,8 @@ Please make sure to respect issue requirements and use [the new issue helper](ht
 
 ## Stay In Touch
 
-- [Twitter](https://twitter.com/vuejs)
+- [X](https://x.com/vuejs)
+- [Bluesky](https://bsky.app/profile/vuejs.org)
 - [Blog](https://blog.vuejs.org/)
 - [Job Board](https://vuejobs.com/?ref=vuejs)
 
@@ -44,7 +45,9 @@ Please make sure to read the [Contributing Guide](https://github.com/vuejs/core/
 
 Thank you to all the people who already contributed to Vue!
 
-<a href="https://github.com/vuejs/core/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890" /></a>
+<a href="https://github.com/vuejs/core/graphs/contributors"><img src="https://opencollective.com/vuejs/contributors.svg?width=890&limit=500" /></a>
+
+<sub>_Note: Showing the first 500 contributors only due to GitHub image size limitations_</sub>
 
 ## License
 

changelogs/CHANGELOG-3.4.md

@@ -741,17 +741,6 @@ Note that this is a type-only breaking change in a minor release, which adheres
 
 
 
-## [3.3.13](https://github.com/vuejs/core/compare/v3.3.12...v3.3.13) (2023-12-19)
-
-
-### Bug Fixes
-
-* **compiler-core:** fix v-on with modifiers on inline expression of undefined ([#9866](https://github.com/vuejs/core/issues/9866)) ([bae79dd](https://github.com/vuejs/core/commit/bae79ddf8564a2da4a5365cfeb8d811990f42335)), closes [#9865](https://github.com/vuejs/core/issues/9865)
-* **runtime-dom:** cache event handlers by key/modifiers ([#9851](https://github.com/vuejs/core/issues/9851)) ([04d2c05](https://github.com/vuejs/core/commit/04d2c05054c26b02fbc1d84839b0ed5cd36455b6)), closes [#9849](https://github.com/vuejs/core/issues/9849)
-* **types:** extract properties from extended collections ([#9854](https://github.com/vuejs/core/issues/9854)) ([24b1c1d](https://github.com/vuejs/core/commit/24b1c1dd57fd55d998aa231a147500e010b10219)), closes [#9852](https://github.com/vuejs/core/issues/9852)
-
-
-
 # [3.4.0-beta.3](https://github.com/vuejs/core/compare/v3.3.12...v3.4.0-beta.3) (2023-12-16)
 
 
@@ -764,19 +753,6 @@ Note that this is a type-only breaking change in a minor release, which adheres
 
 
 
-## [3.3.12](https://github.com/vuejs/core/compare/v3.3.11...v3.3.12) (2023-12-16)
-
-### Bug Fixes
-
-* **hydration:** handle appear transition before patch props ([#9837](https://github.com/vuejs/core/issues/9837)) ([e70f4c4](https://github.com/vuejs/core/commit/e70f4c47c553b6e16d8fad70743271ca23802fe7)), closes [#9832](https://github.com/vuejs/core/issues/9832)
-* **sfc/cssVars:** fix loss of CSS v-bind variables when setting inline style with string value ([#9824](https://github.com/vuejs/core/issues/9824)) ([0a387df](https://github.com/vuejs/core/commit/0a387dfb1d04afb6eae4296b6da76dfdaca77af4)), closes [#9821](https://github.com/vuejs/core/issues/9821)
-* **ssr:** fix suspense hydration of fallback content ([#7188](https://github.com/vuejs/core/issues/7188)) ([60415b5](https://github.com/vuejs/core/commit/60415b5d67df55f1fd6b176615299c08640fa142))
-* **types:** add `xmlns:xlink` to `SVGAttributes` ([#9300](https://github.com/vuejs/core/issues/9300)) ([0d61b42](https://github.com/vuejs/core/commit/0d61b429ecf63591d31e09702058fa4c7132e1a7)), closes [#9299](https://github.com/vuejs/core/issues/9299)
-* **types:** fix `shallowRef` type error ([#9839](https://github.com/vuejs/core/issues/9839)) ([9a57158](https://github.com/vuejs/core/commit/9a571582b53220270e498d8712ea59312c0bef3a))
-* **types:** support for generic keyof slots ([#8374](https://github.com/vuejs/core/issues/8374)) ([213eba4](https://github.com/vuejs/core/commit/213eba479ce080efc1053fe636f6be4a4c889b44))
-
-
-
 # [3.4.0-beta.2](https://github.com/vuejs/core/compare/v3.4.0-beta.1...v3.4.0-beta.2) (2023-12-14)
 
 
@@ -836,22 +812,6 @@ default.
 
 
 
-## [3.3.11](https://github.com/vuejs/core/compare/v3.3.10...v3.3.11) (2023-12-08)
-
-
-### Bug Fixes
-
-* **custom-element:** correctly handle number type props in prod ([#8989](https://github.com/vuejs/core/issues/8989)) ([d74d364](https://github.com/vuejs/core/commit/d74d364d62db8e48881af6b5a75ce4fb5f36cc35))
-* **reactivity:** fix mutation on user proxy of reactive Array ([6ecbd5c](https://github.com/vuejs/core/commit/6ecbd5ce2a7f59314a8326a1d193874b87f4d8c8)), closes [#9742](https://github.com/vuejs/core/issues/9742) [#9751](https://github.com/vuejs/core/issues/9751) [#9750](https://github.com/vuejs/core/issues/9750)
-* **runtime-dom:** fix width and height prop check condition ([5b00286](https://github.com/vuejs/core/commit/5b002869c533220706f9788b496b8ca8d8e98609)), closes [#9762](https://github.com/vuejs/core/issues/9762)
-* **shared:** handle Map with symbol keys in toDisplayString ([#9731](https://github.com/vuejs/core/issues/9731)) ([364821d](https://github.com/vuejs/core/commit/364821d6bdb1775e2f55a69bcfb9f40f7acf1506)), closes [#9727](https://github.com/vuejs/core/issues/9727)
-* **shared:** handle more Symbol cases in toDisplayString ([983d45d](https://github.com/vuejs/core/commit/983d45d4f8eb766b5a16b7ea93b86d3c51618fa6))
-* **Suspense:** properly get anchor when mount fallback vnode ([#9770](https://github.com/vuejs/core/issues/9770)) ([b700328](https://github.com/vuejs/core/commit/b700328342e17dc16b19316c2e134a26107139d2)), closes [#9769](https://github.com/vuejs/core/issues/9769)
-* **types:** ref() return type should not be any when initial value is any ([#9768](https://github.com/vuejs/core/issues/9768)) ([cdac121](https://github.com/vuejs/core/commit/cdac12161ec27b45ded48854c3d749664b6d4a6d))
-* **watch:** should not fire pre watcher on child component unmount ([#7181](https://github.com/vuejs/core/issues/7181)) ([6784f0b](https://github.com/vuejs/core/commit/6784f0b1f8501746ea70d87d18ed63a62cf6b76d)), closes [#7030](https://github.com/vuejs/core/issues/7030)
-
-
-
 # [3.4.0-alpha.4](https://github.com/vuejs/core/compare/v3.3.10...v3.4.0-alpha.4) (2023-12-04)
 
 
@@ -873,37 +833,6 @@ default.
 
 
 
-## [3.3.10](https://github.com/vuejs/core/compare/v3.3.9...v3.3.10) (2023-12-04)
-
-
-### Bug Fixes
-
-* **app:** prevent template from being cached between apps with different options ([#9724](https://github.com/vuejs/core/issues/9724)) ([ec71585](https://github.com/vuejs/core/commit/ec715854ca12520b2afc9e9b3981cbae05ae5206)), closes [#9618](https://github.com/vuejs/core/issues/9618)
-* **compiler-sfc:** avoid passing forEach index to genMap ([f12db7f](https://github.com/vuejs/core/commit/f12db7fb564a534cef2e5805cc9f54afe5d72fbf))
-* **compiler-sfc:** deindent pug/jade templates ([6345197](https://github.com/vuejs/core/commit/634519720a21fb5a6871454e1cadad7053a568b8)), closes [#3231](https://github.com/vuejs/core/issues/3231) [#3842](https://github.com/vuejs/core/issues/3842) [#7723](https://github.com/vuejs/core/issues/7723)
-* **compiler-sfc:** fix :where and :is selector in scoped mode with multiple selectors ([#9735](https://github.com/vuejs/core/issues/9735)) ([c3e2c55](https://github.com/vuejs/core/commit/c3e2c556b532656b50b8ab5cd2d9eabc26622d63)), closes [#9707](https://github.com/vuejs/core/issues/9707)
-* **compiler-sfc:** generate more treeshaking friendly code ([#9507](https://github.com/vuejs/core/issues/9507)) ([8d74ca0](https://github.com/vuejs/core/commit/8d74ca0e6fa2738ca6854b7e879ff59419f948c7)), closes [#9500](https://github.com/vuejs/core/issues/9500)
-* **compiler-sfc:** support inferring generic types ([#8511](https://github.com/vuejs/core/issues/8511)) ([eb5e307](https://github.com/vuejs/core/commit/eb5e307c0be62002e62c4c800d0dfacb39b0d4ca)), closes [#8482](https://github.com/vuejs/core/issues/8482)
-* **compiler-sfc:** support resolving components from props ([#8785](https://github.com/vuejs/core/issues/8785)) ([7cbcee3](https://github.com/vuejs/core/commit/7cbcee3d831241a8bd3588ae92d3f27e3641e25f))
-* **compiler-sfc:** throw error when failing to load TS during type resolution ([#8883](https://github.com/vuejs/core/issues/8883)) ([4936d2e](https://github.com/vuejs/core/commit/4936d2e11a8d0ca3704bfe408548cb26bb3fd5e9))
-* **cssVars:** cssVar names should be double-escaped when generating code for ssr ([#8824](https://github.com/vuejs/core/issues/8824)) ([5199a12](https://github.com/vuejs/core/commit/5199a12f8855cd06f24bf355708b5a2134f63176)), closes [#7823](https://github.com/vuejs/core/issues/7823)
-* **deps:** update compiler to ^7.23.4 ([#9681](https://github.com/vuejs/core/issues/9681)) ([31f6ebc](https://github.com/vuejs/core/commit/31f6ebc4df84490ed29fb75e7bf4259200eb51f0))
-* **runtime-core:** Suspense get anchor properly in Transition ([#9309](https://github.com/vuejs/core/issues/9309)) ([65f3fe2](https://github.com/vuejs/core/commit/65f3fe273127a8b68e1222fbb306d28d85f01757)), closes [#8105](https://github.com/vuejs/core/issues/8105)
-* **runtime-dom:** set width/height with units as attribute ([#8781](https://github.com/vuejs/core/issues/8781)) ([bfc1838](https://github.com/vuejs/core/commit/bfc1838f31199de3f189198a3c234fa7bae91386))
-* **ssr:** avoid computed being accidentally cached before server render ([#9688](https://github.com/vuejs/core/issues/9688)) ([30d5d93](https://github.com/vuejs/core/commit/30d5d93a92b2154406ec04f8aca6b217fa01177c)), closes [#5300](https://github.com/vuejs/core/issues/5300)
-* **types:** expose emits as props in functional components ([#9234](https://github.com/vuejs/core/issues/9234)) ([887e54c](https://github.com/vuejs/core/commit/887e54c347ea9eac4c721b5e2288f054873d1d30))
-* **types:** fix reactive collection types ([#8960](https://github.com/vuejs/core/issues/8960)) ([ad27473](https://github.com/vuejs/core/commit/ad274737015c36906d76f3189203093fa3a2e4e7)), closes [#8904](https://github.com/vuejs/core/issues/8904)
-* **types:** improve return type withKeys and withModifiers ([#9734](https://github.com/vuejs/core/issues/9734)) ([43c3cfd](https://github.com/vuejs/core/commit/43c3cfdec5ae5d70fa2a21e857abc2d73f1a0d07))
-
-
-### Performance Improvements
-
-* optimize on* prop check ([38aaa8c](https://github.com/vuejs/core/commit/38aaa8c88648c54fe2616ad9c0961288092fcb44))
-* **runtime-dom:** cache modifier wrapper functions ([da4a4fb](https://github.com/vuejs/core/commit/da4a4fb5e8eee3c6d31f24ebd79a9d0feca56cb2)), closes [#8882](https://github.com/vuejs/core/issues/8882)
-* **v-on:** constant handlers with modifiers should not be treated as dynamic ([4d94ebf](https://github.com/vuejs/core/commit/4d94ebfe75174b340d2b794e699cad1add3600a9))
-
-
-
 # [3.4.0-alpha.3](https://github.com/vuejs/core/compare/v3.4.0-alpha.2...v3.4.0-alpha.3) (2023-11-28)
 
 
@@ -960,55 +889,6 @@ default.
 
 
 
-## [3.3.9](https://github.com/vuejs/core/compare/v3.3.8...v3.3.9) (2023-11-25)
-
-
-### Bug Fixes
-
-* **compiler-core:** avoid rewriting scope variables in inline for loops ([#7245](https://github.com/vuejs/core/issues/7245)) ([a2d810e](https://github.com/vuejs/core/commit/a2d810eb40cef631f61991ca68b426ee9546aba0)), closes [#7238](https://github.com/vuejs/core/issues/7238)
-* **compiler-core:** fix `resolveParserPlugins` decorators check ([#9566](https://github.com/vuejs/core/issues/9566)) ([9d0eba9](https://github.com/vuejs/core/commit/9d0eba916f3bf6fb5c03222400edae1a2db7444f)), closes [#9560](https://github.com/vuejs/core/issues/9560)
-* **compiler-sfc:** consistently escape type-only prop names ([#8654](https://github.com/vuejs/core/issues/8654)) ([3e08d24](https://github.com/vuejs/core/commit/3e08d246dfd8523c54fb8e7a4a6fd5506ffb1bcc)), closes [#8635](https://github.com/vuejs/core/issues/8635) [#8910](https://github.com/vuejs/core/issues/8910) [vitejs/vite-plugin-vue#184](https://github.com/vitejs/vite-plugin-vue/issues/184)
-* **compiler-sfc:** malformed filename on windows using path.posix.join() ([#9478](https://github.com/vuejs/core/issues/9478)) ([f18a174](https://github.com/vuejs/core/commit/f18a174979626b3429db93c5d5b7ae5448917c70)), closes [#8671](https://github.com/vuejs/core/issues/8671) [#9583](https://github.com/vuejs/core/issues/9583) [#9446](https://github.com/vuejs/core/issues/9446) [#9473](https://github.com/vuejs/core/issues/9473)
-* **compiler-sfc:** support `:is` and `:where` selector in scoped css rewrite ([#8929](https://github.com/vuejs/core/issues/8929)) ([3227e50](https://github.com/vuejs/core/commit/3227e50b32105f8893f7dff2f29278c5b3a9f621))
-* **compiler-sfc:** support resolve extends interface for defineEmits ([#8470](https://github.com/vuejs/core/issues/8470)) ([9e1b74b](https://github.com/vuejs/core/commit/9e1b74bcd5fa4151f5d1bc02c69fbbfa4762f577)), closes [#8465](https://github.com/vuejs/core/issues/8465)
-* **hmr/transition:** fix kept-alive component inside transition disappearing after hmr ([#7126](https://github.com/vuejs/core/issues/7126)) ([d11e978](https://github.com/vuejs/core/commit/d11e978fc98dcc83526c167e603b8308f317f786)), closes [#7121](https://github.com/vuejs/core/issues/7121)
-* **hydration:** force hydration for v-bind with .prop modifier ([364f319](https://github.com/vuejs/core/commit/364f319d214226770d97c98d8fcada80c9e8dde3)), closes [#7490](https://github.com/vuejs/core/issues/7490)
-* **hydration:** properly hydrate indeterminate prop ([34b5a5d](https://github.com/vuejs/core/commit/34b5a5da4ae9c9faccac237acd7acc8e7e017571)), closes [#7476](https://github.com/vuejs/core/issues/7476)
-* **reactivity:** clear method on readonly collections should return undefined ([#7316](https://github.com/vuejs/core/issues/7316)) ([657476d](https://github.com/vuejs/core/commit/657476dcdb964be4fbb1277c215c073f3275728e))
-* **reactivity:** onCleanup also needs to be cleaned ([#8655](https://github.com/vuejs/core/issues/8655)) ([73fd810](https://github.com/vuejs/core/commit/73fd810eebdd383a2b4629f67736c4db1f428abd)), closes [#5151](https://github.com/vuejs/core/issues/5151) [#7695](https://github.com/vuejs/core/issues/7695)
-* **ssr:** hydration `__vnode` missing for devtools ([#9328](https://github.com/vuejs/core/issues/9328)) ([5156ac5](https://github.com/vuejs/core/commit/5156ac5b38cfa80d3db26f2c9bf40cb22a7521cb))
-* **types:** allow falsy value types in `StyleValue` ([#7954](https://github.com/vuejs/core/issues/7954)) ([17aa92b](https://github.com/vuejs/core/commit/17aa92b79b31d8bb8b5873ddc599420cb9806db8)), closes [#7955](https://github.com/vuejs/core/issues/7955)
-* **types:** defineCustomElement using defineComponent return type with emits ([#7937](https://github.com/vuejs/core/issues/7937)) ([5d932a8](https://github.com/vuejs/core/commit/5d932a8e6d14343c9d7fc7c2ecb58ac618b2f938)), closes [#7782](https://github.com/vuejs/core/issues/7782)
-* **types:** fix `unref` and `toValue` when input union type contains ComputedRef ([#8748](https://github.com/vuejs/core/issues/8748)) ([176d476](https://github.com/vuejs/core/commit/176d47671271b1abc21b1508e9a493c7efca6451)), closes [#8747](https://github.com/vuejs/core/issues/8747) [#8857](https://github.com/vuejs/core/issues/8857)
-* **types:** fix instance type when props type is incompatible with setup returned type ([#7338](https://github.com/vuejs/core/issues/7338)) ([0e1e8f9](https://github.com/vuejs/core/commit/0e1e8f919e5a74cdaadf9c80ee135088b25e7fa3)), closes [#5885](https://github.com/vuejs/core/issues/5885)
-* **types:** fix shallowRef return type with union value type ([#7853](https://github.com/vuejs/core/issues/7853)) ([7c44800](https://github.com/vuejs/core/commit/7c448000b0def910c2cfabfdf7ff20a3d6bc844f)), closes [#7852](https://github.com/vuejs/core/issues/7852)
-* **types:** more precise types for class bindings ([#8012](https://github.com/vuejs/core/issues/8012)) ([46e3374](https://github.com/vuejs/core/commit/46e33744c890bd49482c5e5c5cdea44e00ec84d5))
-* **types:** remove optional properties from defineProps return type ([#6421](https://github.com/vuejs/core/issues/6421)) ([94c049d](https://github.com/vuejs/core/commit/94c049d930d922069e38ea8700d7ff0970f71e61)), closes [#6420](https://github.com/vuejs/core/issues/6420)
-* **types:** return type of withDefaults should be readonly ([#8601](https://github.com/vuejs/core/issues/8601)) ([f15debc](https://github.com/vuejs/core/commit/f15debc01acb22d23f5acee97e6f02db88cef11a))
-* **types:** revert class type restrictions ([5d077c8](https://github.com/vuejs/core/commit/5d077c8754cc14f85d2d6d386df70cf8c0d93842)), closes [#8012](https://github.com/vuejs/core/issues/8012)
-* **types:** update jsx type definitions ([#8607](https://github.com/vuejs/core/issues/8607)) ([58e2a94](https://github.com/vuejs/core/commit/58e2a94871ae06a909c5f8bad07fb401193e6a38))
-* **types:** widen ClassValue type ([2424013](https://github.com/vuejs/core/commit/242401305944422d0c361b16101a4d18908927af))
-* **v-model:** avoid overwriting number input with same value ([#7004](https://github.com/vuejs/core/issues/7004)) ([40f4b77](https://github.com/vuejs/core/commit/40f4b77bb570868cb6e47791078767797e465989)), closes [#7003](https://github.com/vuejs/core/issues/7003)
-* **v-model:** unnecessary value binding error should apply to dynamic instead of static binding ([2859b65](https://github.com/vuejs/core/commit/2859b653c9a22460e60233cac10fe139e359b046)), closes [#3596](https://github.com/vuejs/core/issues/3596)
-
-
-
-## [3.3.8](https://github.com/vuejs/core/compare/v3.3.7...v3.3.8) (2023-11-06)
-
-
-### Bug Fixes
-
-* **compile-sfc:** support `Error` type in `defineProps` ([#5955](https://github.com/vuejs/core/issues/5955)) ([a989345](https://github.com/vuejs/core/commit/a9893458ec519aae442e1b99e64e6d74685cd22c))
-* **compiler-core:** known global should be shadowed by local variables in expression rewrite ([#9492](https://github.com/vuejs/core/issues/9492)) ([a75d1c5](https://github.com/vuejs/core/commit/a75d1c5c6242e91a73cc5ba01e6da620dea0b3d9)), closes [#9482](https://github.com/vuejs/core/issues/9482)
-* **compiler-sfc:** fix dynamic directive arguments usage check for slots ([#9495](https://github.com/vuejs/core/issues/9495)) ([b39fa1f](https://github.com/vuejs/core/commit/b39fa1f8157647859331ce439c42ae016a49b415)), closes [#9493](https://github.com/vuejs/core/issues/9493)
-* **deps:** update dependency @vue/repl to ^2.6.2 ([#9536](https://github.com/vuejs/core/issues/9536)) ([5cef325](https://github.com/vuejs/core/commit/5cef325f41e3b38657c72fa1a38dedeee1c7a60a))
-* **deps:** update dependency @vue/repl to ^2.6.3 ([#9540](https://github.com/vuejs/core/issues/9540)) ([176d590](https://github.com/vuejs/core/commit/176d59058c9aecffe9da4d4311e98496684f06d4))
-* **hydration:** fix tagName access error on comment/text node hydration mismatch ([dd8a0cf](https://github.com/vuejs/core/commit/dd8a0cf5dcde13d2cbd899262a0e07f16e14e489)), closes [#9531](https://github.com/vuejs/core/issues/9531)
-* **types:** avoid exposing lru-cache types in generated dts ([462aeb3](https://github.com/vuejs/core/commit/462aeb3b600765e219ded2ee9a0ed1e74df61de0)), closes [#9521](https://github.com/vuejs/core/issues/9521)
-* **warn:** avoid warning on empty children with Suspense ([#3962](https://github.com/vuejs/core/issues/3962)) ([405f345](https://github.com/vuejs/core/commit/405f34587a63a5f1e3d147b9848219ea98acc22d))
-
-
-
 # [3.4.0-alpha.1](https://github.com/vuejs/core/compare/v3.3.7...v3.4.0-alpha.1) (2023-10-28)
 
 

netlify.toml

@@ -1,3 +1,3 @@
 [build.environment]
-  NODE_VERSION = "18"
+  NODE_VERSION = "22"
   NPM_FLAGS = "--version" # prevent Netlify npm install

package.json

@@ -1,7 +1,7 @@
 {
   "private": true,
   "version": "3.5.13",
-  "packageManager": "pnpm@9.13.2",
+  "packageManager": "pnpm@10.9.0",
   "type": "module",
   "scripts": {
     "dev": "node scripts/dev.js",
@@ -65,62 +65,51 @@
     "@babel/parser": "catalog:",
     "@babel/types": "catalog:",
     "@rollup/plugin-alias": "^5.1.1",
-    "@rollup/plugin-commonjs": "^28.0.1",
+    "@rollup/plugin-commonjs": "^28.0.3",
     "@rollup/plugin-json": "^6.1.0",
-    "@rollup/plugin-node-resolve": "^15.3.0",
+    "@rollup/plugin-node-resolve": "^16.0.1",
     "@rollup/plugin-replace": "5.0.4",
-    "@swc/core": "^1.9.2",
+    "@swc/core": "^1.11.24",
     "@types/hash-sum": "^1.0.2",
-    "@types/node": "^22.9.0",
+    "@types/node": "^22.14.1",
-    "@types/semver": "^7.5.8",
+    "@types/semver": "^7.7.0",
     "@types/serve-handler": "^6.1.4",
-    "@vitest/coverage-v8": "^2.1.1",
+    "@vitest/coverage-v8": "^3.1.3",
+    "@vitest/eslint-plugin": "^1.1.44",
     "@vue/consolidate": "1.0.0",
     "conventional-changelog-cli": "^5.0.0",
     "enquirer": "^2.4.1",
-    "esbuild": "^0.24.0",
+    "esbuild": "^0.25.4",
     "esbuild-plugin-polyfill-node": "^0.3.0",
-    "eslint": "^9.15.0",
+    "eslint": "^9.25.1",
-    "eslint-plugin-import-x": "^4.4.2",
+    "eslint-plugin-import-x": "^4.11.0",
-    "@vitest/eslint-plugin": "^1.0.1",
     "estree-walker": "catalog:",
-    "jsdom": "^25.0.0",
+    "jsdom": "^26.1.0",
-    "lint-staged": "^15.2.10",
+    "lint-staged": "^15.5.1",
     "lodash": "^4.17.21",
-    "magic-string": "^0.30.12",
+    "magic-string": "^0.30.17",
     "markdown-table": "^3.0.4",
     "marked": "13.0.3",
-    "npm-run-all2": "^7.0.1",
+    "npm-run-all2": "^7.0.2",
     "picocolors": "^1.1.1",
-    "prettier": "^3.3.3",
+    "prettier": "^3.5.3",
     "pretty-bytes": "^6.1.1",
     "pug": "^3.0.3",
-    "puppeteer": "~23.3.0",
+    "puppeteer": "~24.8.2",
     "rimraf": "^6.0.1",
-    "rollup": "^4.27.2",
+    "rollup": "^4.40.2",
-    "rollup-plugin-dts": "^6.1.1",
+    "rollup-plugin-dts": "^6.2.1",
-    "rollup-plugin-esbuild": "^6.1.1",
+    "rollup-plugin-esbuild": "^6.2.1",
     "rollup-plugin-polyfill-node": "^0.13.0",
-    "semver": "^7.6.3",
+    "semver": "^7.7.1",
     "serve": "^14.2.4",
     "serve-handler": "^6.1.6",
-    "simple-git-hooks": "^2.11.1",
+    "simple-git-hooks": "^2.13.0",
     "todomvc-app-css": "^2.4.3",
     "tslib": "^2.8.1",
     "typescript": "~5.6.2",
-    "typescript-eslint": "^8.14.0",
+    "typescript-eslint": "^8.31.1",
     "vite": "catalog:",
-    "vitest": "^2.1.1"
+    "vitest": "^3.1.3"
-  },
-  "pnpm": {
-    "peerDependencyRules": {
-      "allowedVersions": {
-        "typescript-eslint>eslint": "^9.0.0",
-        "@typescript-eslint/eslint-plugin>eslint": "^9.0.0",
-        "@typescript-eslint/parser>eslint": "^9.0.0",
-        "@typescript-eslint/type-utils>eslint": "^9.0.0",
-        "@typescript-eslint/utils>eslint": "^9.0.0"
-      }
-    }
   }
 }

packages-private/dts-test/appDirective.test-d.ts

@@ -9,7 +9,7 @@ app.directive<HTMLElement, string, 'prevent' | 'stop', 'arg1' | 'arg2'>(
     mounted(el, binding) {
       expectType<HTMLElement>(el)
       expectType<string>(binding.value)
-      expectType<{ prevent: boolean; stop: boolean }>(binding.modifiers)
+      expectType<{ prevent?: boolean; stop?: boolean }>(binding.modifiers)
       expectType<'arg1' | 'arg2'>(binding.arg!)
 
       // @ts-expect-error not any

packages-private/dts-test/appUse.test-d.ts

@@ -12,8 +12,11 @@ app.use(PluginWithoutType, 2)
 app.use(PluginWithoutType, { anything: 'goes' }, true)
 
 type PluginOptions = {
+  /** option1 */
   option1?: string
+  /** option2 */
   option2: number
+  /** option3 */
   option3: boolean
 }
 
@@ -25,6 +28,20 @@ const PluginWithObjectOptions = {
   },
 }
 
+const objectPluginOptional = {
+  install(app: App, options?: PluginOptions) {},
+}
+app.use(objectPluginOptional)
+app.use(
+  objectPluginOptional,
+  // Test JSDoc and `go to definition` for options
+  {
+    option1: 'foo',
+    option2: 1,
+    option3: true,
+  },
+)
+
 for (const Plugin of [
   PluginWithObjectOptions,
   PluginWithObjectOptions.install,
@@ -92,7 +109,27 @@ const PluginTyped: Plugin<PluginOptions> = (app, options) => {}
 
 // @ts-expect-error: needs options
 app.use(PluginTyped)
-app.use(PluginTyped, { option2: 2, option3: true })
+app.use(
+  PluginTyped,
+  // Test autocomplete for options
+  {
+    option1: '',
+    option2: 2,
+    option3: true,
+  },
+)
+
+const functionPluginOptional = (app: App, options?: PluginOptions) => {}
+app.use(functionPluginOptional)
+app.use(functionPluginOptional, { option2: 2, option3: true })
+
+// type optional params
+const functionPluginOptional2: Plugin<[options?: PluginOptions]> = (
+  app,
+  options,
+) => {}
+app.use(functionPluginOptional2)
+app.use(functionPluginOptional2, { option2: 2, option3: true })
 
 // vuetify usage
 const key: string = ''

packages-private/dts-test/directives.test-d.ts

@@ -29,7 +29,7 @@ describe('custom', () => {
     value: number
     oldValue: number | null
     arg?: 'Arg'
-    modifiers: Record<'a' | 'b', boolean>
+    modifiers: Partial<Record<'a' | 'b', boolean>>
   }>(testDirective<number, 'a' | 'b', 'Arg'>())
 
   expectType<{

packages-private/dts-test/ref.test-d.ts

@@ -4,6 +4,7 @@ import {
   type MaybeRefOrGetter,
   type Ref,
   type ShallowRef,
+  type TemplateRef,
   type ToRefs,
   type WritableComputedRef,
   computed,
@@ -535,7 +536,7 @@ expectType<string>(toValue(unref2))
 
 // useTemplateRef
 const tRef = useTemplateRef('foo')
-expectType<Readonly<ShallowRef<unknown>>>(tRef)
+expectType<TemplateRef>(tRef)
 
 const tRef2 = useTemplateRef<HTMLElement>('bar')
-expectType<Readonly<ShallowRef<HTMLElement | null>>>(tRef2)
+expectType<TemplateRef<HTMLElement>>(tRef2)

packages-private/sfc-playground/package.json

@@ -13,7 +13,7 @@
     "vite": "catalog:"
   },
   "dependencies": {
-    "@vue/repl": "^4.4.2",
+    "@vue/repl": "^4.5.1",
     "file-saver": "^2.0.5",
     "jszip": "^3.10.1",
     "vue": "workspace:*"

packages-private/sfc-playground/src/App.vue

@@ -165,8 +165,9 @@ onMounted(() => {
 
 body {
   font-size: 13px;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
+  font-family:
-    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
+    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
+    Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
   margin: 0;
   --base: #444;
   --nav-height: 50px;

packages-private/sfc-playground/src/download/download.ts

@@ -17,7 +17,10 @@ export async function downloadProject(store: ReplStore) {
 
   // basic structure
   zip.file('index.html', index)
-  zip.file('package.json', pkg)
+  zip.file(
+    'package.json',
+    pkg.replace(`"vue": "latest"`, `"vue": "${store.vueVersion || 'latest'}"`),
+  )
   zip.file('vite.config.js', config)
   zip.file('README.md', readme)
 

packages-private/sfc-playground/src/download/template/package.json

@@ -8,10 +8,10 @@
     "serve": "vite preview"
   },
   "dependencies": {
-    "vue": "^3.4.0"
+    "vue": "latest"
   },
   "devDependencies": {
-    "@vitejs/plugin-vue": "^5.2.0",
+    "@vitejs/plugin-vue": "^5.2.4",
-    "vite": "^5.4.11"
+    "vite": "^6.3.5"
   }
 }

packages-private/template-explorer/package.json

@@ -11,7 +11,7 @@
     "enableNonBrowserBranches": true
   },
   "dependencies": {
-    "monaco-editor": "^0.52.0",
+    "monaco-editor": "^0.52.2",
     "source-map-js": "^1.2.1"
   }
 }

packages-private/template-explorer/style.css

@@ -1,8 +1,9 @@
 body {
   margin: 0;
   overflow: hidden;
-  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
+  font-family:
-    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
+    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu,
+    Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
   --bg: #1d1f21;
   --border: #333;
 }

packages/compiler-core/__tests__/transforms/cacheStatic.spec.ts

@@ -170,6 +170,11 @@ describe('compiler: cacheStatic transform', () => {
         {
           /* _ slot flag */
         },
+        {
+          type: NodeTypes.JS_PROPERTY,
+          key: { content: '__' },
+          value: { content: '[0]' },
+        },
       ],
     })
   })
@@ -197,6 +202,11 @@ describe('compiler: cacheStatic transform', () => {
         {
           /* _ slot flag */
         },
+        {
+          type: NodeTypes.JS_PROPERTY,
+          key: { content: '__' },
+          value: { content: '[0]' },
+        },
       ],
     })
   })

packages/compiler-core/src/parser.ts

@@ -388,7 +388,7 @@ const tokenizer = new Tokenizer(stack, {
               CompilerDeprecationTypes.COMPILER_V_BIND_SYNC,
               currentOptions,
               currentProp.loc,
-              currentProp.rawName,
+              currentProp.arg!.loc.source,
             )
           ) {
             currentProp.name = 'model'

packages/compiler-core/src/transforms/cacheStatic.ts

@@ -12,11 +12,14 @@ import {
   type RootNode,
   type SimpleExpressionNode,
   type SlotFunctionExpression,
+  type SlotsObjectProperty,
   type TemplateChildNode,
   type TemplateNode,
   type TextCallNode,
   type VNodeCall,
   createArrayExpression,
+  createObjectProperty,
+  createSimpleExpression,
   getVNodeBlockHelper,
   getVNodeHelper,
 } from '../ast'
@@ -140,6 +143,7 @@ function walk(
   }
 
   let cachedAsArray = false
+  const slotCacheKeys = []
   if (toCache.length === children.length && node.type === NodeTypes.ELEMENT) {
     if (
       node.tagType === ElementTypes.ELEMENT &&
@@ -163,6 +167,7 @@ function walk(
       // default slot
       const slot = getSlotNode(node.codegenNode, 'default')
       if (slot) {
+        slotCacheKeys.push(context.cached.length)
         slot.returns = getCacheExpression(
           createArrayExpression(slot.returns as TemplateChildNode[]),
         )
@@ -186,6 +191,7 @@ function walk(
         slotName.arg &&
         getSlotNode(parent.codegenNode, slotName.arg)
       if (slot) {
+        slotCacheKeys.push(context.cached.length)
         slot.returns = getCacheExpression(
           createArrayExpression(slot.returns as TemplateChildNode[]),
         )
@@ -196,10 +202,31 @@ function walk(
 
   if (!cachedAsArray) {
     for (const child of toCache) {
+      slotCacheKeys.push(context.cached.length)
       child.codegenNode = context.cache(child.codegenNode!)
     }
   }
 
+  // put the slot cached keys on the slot object, so that the cache
+  // can be removed when component unmounting to prevent memory leaks
+  if (
+    slotCacheKeys.length &&
+    node.type === NodeTypes.ELEMENT &&
+    node.tagType === ElementTypes.COMPONENT &&
+    node.codegenNode &&
+    node.codegenNode.type === NodeTypes.VNODE_CALL &&
+    node.codegenNode.children &&
+    !isArray(node.codegenNode.children) &&
+    node.codegenNode.children.type === NodeTypes.JS_OBJECT_EXPRESSION
+  ) {
+    node.codegenNode.children.properties.push(
+      createObjectProperty(
+        `__`,
+        createSimpleExpression(JSON.stringify(slotCacheKeys), false),
+      ) as SlotsObjectProperty,
+    )
+  }
+
   function getCacheExpression(value: JSChildNode): CacheExpression {
     const exp = context.cache(value)
     // #6978, #7138, #7114

packages/compiler-core/src/transforms/vBind.ts

@@ -12,7 +12,7 @@ import { camelize } from '@vue/shared'
 import { CAMELIZE } from '../runtimeHelpers'
 import { processExpression } from './transformExpression'
 
-// v-bind without arg is handled directly in ./transformElements.ts due to it affecting
+// v-bind without arg is handled directly in ./transformElement.ts due to its affecting
 // codegen for the entire props object. This transform here is only for v-bind
 // *with* args.
 export const transformBind: DirectiveTransform = (dir, _node, context) => {

packages/compiler-core/src/transforms/vOn.ts

@@ -17,7 +17,7 @@ import { hasScopeRef, isFnExpression, isMemberExpression } from '../utils'
 import { TO_HANDLER_KEY } from '../runtimeHelpers'
 
 export interface VOnDirectiveNode extends DirectiveNode {
-  // v-on without arg is handled directly in ./transformElements.ts due to it affecting
+  // v-on without arg is handled directly in ./transformElement.ts due to its affecting
   // codegen for the entire props object. This transform here is only for v-on
   // *with* args.
   arg: ExpressionNode

packages/compiler-core/src/transforms/vSlot.ts

@@ -342,7 +342,6 @@ export function buildSlots(
     : hasForwardedSlots(node.children)
       ? SlotFlags.FORWARDED
       : SlotFlags.STABLE
-
   let slots = createObjectExpression(
     slotsProperties.concat(
       createObjectProperty(

packages/compiler-sfc/__tests__/compileStyle.spec.ts

@@ -214,7 +214,8 @@ color: red
       ".div[data-v-test] { color: red;
       }
       .div[data-v-test]:where(:hover) { color: blue;
-    }"`)
+      }"
+    `)
 
     expect(
       compileScoped(`.div { color: red; } .div:is(:hover) { color: blue; }`),
@@ -222,7 +223,8 @@ color: red
       ".div[data-v-test] { color: red;
       }
       .div[data-v-test]:is(:hover) { color: blue;
-    }"`)
+      }"
+    `)
 
     expect(
       compileScoped(
@@ -232,7 +234,8 @@ color: red
       ".div[data-v-test] { color: red;
       }
       .div[data-v-test]:where(.foo:hover) { color: blue;
-    }"`)
+      }"
+    `)
 
     expect(
       compileScoped(
@@ -242,7 +245,8 @@ color: red
       ".div[data-v-test] { color: red;
       }
       .div[data-v-test]:is(.foo:hover) { color: blue;
-    }"`)
+      }"
+    `)
   })
 
   test('media query', () => {

packages/compiler-sfc/__tests__/parse.spec.ts

@@ -81,7 +81,7 @@ font-weight: bold;
 
       const consumer = new SourceMapConsumer(script!.map!)
       consumer.eachMapping(mapping => {
-        expect(mapping.originalLine - mapping.generatedLine).toBe(padding)
+        expect(mapping.originalLine! - mapping.generatedLine).toBe(padding)
       })
     })
 
@@ -100,8 +100,8 @@ font-weight: bold;
 
       const consumer = new SourceMapConsumer(template.map!)
       consumer.eachMapping(mapping => {
-        expect(mapping.originalLine - mapping.generatedLine).toBe(padding)
+        expect(mapping.originalLine! - mapping.generatedLine).toBe(padding)
-        expect(mapping.originalColumn - mapping.generatedColumn).toBe(2)
+        expect(mapping.originalColumn! - mapping.generatedColumn).toBe(2)
       })
     })
 
@@ -115,7 +115,7 @@ font-weight: bold;
 
       const consumer = new SourceMapConsumer(custom!.map!)
       consumer.eachMapping(mapping => {
-        expect(mapping.originalLine - mapping.generatedLine).toBe(padding)
+        expect(mapping.originalLine! - mapping.generatedLine).toBe(padding)
       })
     })
   })

packages/compiler-sfc/package.json

@@ -49,7 +49,7 @@
     "@vue/shared": "workspace:*",
     "estree-walker": "catalog:",
     "magic-string": "catalog:",
-    "postcss": "^8.4.49",
+    "postcss": "^8.5.3",
     "source-map-js": "catalog:"
   },
   "devDependencies": {
@@ -58,10 +58,10 @@
     "hash-sum": "^2.0.0",
     "lru-cache": "10.1.0",
     "merge-source-map": "^1.1.0",
-    "minimatch": "~9.0.5",
+    "minimatch": "~10.0.1",
     "postcss-modules": "^6.0.1",
-    "postcss-selector-parser": "^7.0.0",
+    "postcss-selector-parser": "^7.1.0",
     "pug": "^3.0.3",
-    "sass": "^1.81.0"
+    "sass": "^1.86.3"
   }
 }

packages/compiler-sfc/src/compileScript.ts

@@ -170,8 +170,6 @@ export function compileScript(
   const scriptLang = script && script.lang
   const scriptSetupLang = scriptSetup && scriptSetup.lang
 
-  let refBindings: string[] | undefined
-
   if (!scriptSetup) {
     if (!script) {
       throw new Error(`[@vue/compiler-sfc] SFC contains no <script> tags.`)
@@ -740,12 +738,6 @@ export function compileScript(
   for (const key in setupBindings) {
     ctx.bindingMetadata[key] = setupBindings[key]
   }
-  // known ref bindings
-  if (refBindings) {
-    for (const key of refBindings) {
-      ctx.bindingMetadata[key] = BindingTypes.SETUP_REF
-    }
-  }
 
   // 7. inject `useCssVars` calls
   if (
@@ -1112,6 +1104,7 @@ function walkDeclaration(
                 m === userImportAliases['shallowRef'] ||
                 m === userImportAliases['customRef'] ||
                 m === userImportAliases['toRef'] ||
+                m === userImportAliases['useTemplateRef'] ||
                 m === DEFINE_MODEL,
             )
           ) {

packages/compiler-sfc/src/compileTemplate.ts

@@ -289,7 +289,7 @@ function mapLines(oldMap: RawSourceMap, newMap: RawSourceMap): RawSourceMap {
 
     const origPosInOldMap = oldMapConsumer.originalPositionFor({
       line: m.originalLine,
-      column: m.originalColumn,
+      column: m.originalColumn!,
     })
 
     if (origPosInOldMap.source == null) {
@@ -305,7 +305,7 @@ function mapLines(oldMap: RawSourceMap, newMap: RawSourceMap): RawSourceMap {
         line: origPosInOldMap.line, // map line
         // use current column, since the oldMap produced by @vue/compiler-sfc
         // does not
-        column: m.originalColumn,
+        column: m.originalColumn!,
       },
       source: origPosInOldMap.source,
       name: origPosInOldMap.name,

packages/compiler-sfc/src/rewriteDefault.ts

@@ -39,7 +39,7 @@ export function rewriteDefaultAST(
   ast.forEach(node => {
     if (node.type === 'ExportDefaultDeclaration') {
       if (node.declaration.type === 'ClassDeclaration' && node.declaration.id) {
-        let start: number =
+        const start: number =
           node.declaration.decorators && node.declaration.decorators.length > 0
             ? node.declaration.decorators[
                 node.declaration.decorators.length - 1

packages/reactivity/__tests__/computed.spec.ts

@@ -1012,6 +1012,17 @@ describe('reactivity/computed', () => {
     expect(cValue.value).toBe(1)
   })
 
+  test('should not recompute if computed does not track reactive data', async () => {
+    const spy = vi.fn()
+    const c1 = computed(() => spy())
+
+    c1.value
+    ref(0).value++ // update globalVersion
+    c1.value
+
+    expect(spy).toBeCalledTimes(1)
+  })
+
   test('computed should remain live after losing all subscribers', () => {
     const state = reactive({ a: 1 })
     const p = computed(() => state.a + 1)

packages/reactivity/__tests__/reactive.spec.ts

@@ -1,4 +1,4 @@
-import { isRef, ref } from '../src/ref'
+import { isRef, ref, shallowRef } from '../src/ref'
 import {
   isProxy,
   isReactive,
@@ -301,6 +301,13 @@ describe('reactivity/reactive', () => {
     expect(() => markRaw(obj)).not.toThrowError()
   })
 
+  test('should not markRaw object as reactive', () => {
+    const a = reactive({ a: 1 })
+    const b = reactive({ b: 2 }) as any
+    b.a = markRaw(toRaw(a))
+    expect(b.a === a).toBe(false)
+  })
+
   test('should not observe non-extensible objects', () => {
     const obj = reactive({
       foo: Object.preventExtensions({ a: 1 }),
@@ -419,4 +426,17 @@ describe('reactivity/reactive', () => {
     map.set(void 0, 1)
     expect(c.value).toBe(1)
   })
+
+  test('should return true for reactive objects', () => {
+    expect(isReactive(reactive({}))).toBe(true)
+    expect(isReactive(readonly(reactive({})))).toBe(true)
+    expect(isReactive(ref({}).value)).toBe(true)
+    expect(isReactive(readonly(ref({})).value)).toBe(true)
+    expect(isReactive(shallowReactive({}))).toBe(true)
+  })
+
+  test('should return false for non-reactive objects', () => {
+    expect(isReactive(ref(true))).toBe(false)
+    expect(isReactive(shallowRef({}).value)).toBe(false)
+  })
 })

packages/reactivity/src/effect.ts

@@ -49,6 +49,7 @@ export enum EffectFlags {
   DIRTY = 1 << 4,
   ALLOW_RECURSE = 1 << 5,
   PAUSED = 1 << 6,
+  EVALUATED = 1 << 7,
 }
 
 /**
@@ -377,22 +378,22 @@ export function refreshComputed(computed: ComputedRefImpl): undefined {
   }
   computed.globalVersion = globalVersion
 
-  const dep = computed.dep
-  computed.flags |= EffectFlags.RUNNING
   // In SSR there will be no render effect, so the computed has no subscriber
   // and therefore tracks no deps, thus we cannot rely on the dirty check.
   // Instead, computed always re-evaluate and relies on the globalVersion
   // fast path above for caching.
+  // #12337 if computed has no deps (does not rely on any reactive data) and evaluated,
+  // there is no need to re-evaluate.
   if (
-    dep.version > 0 &&
     !computed.isSSR &&
-    computed.deps &&
+    computed.flags & EffectFlags.EVALUATED &&
-    !isDirty(computed)
+    ((!computed.deps && !(computed as any)._dirty) || !isDirty(computed))
   ) {
-    computed.flags &= ~EffectFlags.RUNNING
     return
   }
+  computed.flags |= EffectFlags.RUNNING
 
+  const dep = computed.dep
   const prevSub = activeSub
   const prevShouldTrack = shouldTrack
   activeSub = computed
@@ -402,6 +403,7 @@ export function refreshComputed(computed: ComputedRefImpl): undefined {
     prepareDeps(computed)
     const value = computed.fn(computed._value)
     if (dep.version === 0 || hasChanged(value, computed._value)) {
+      computed.flags |= EffectFlags.EVALUATED
       computed._value = value
       dep.version++
     }

packages/reactivity/src/effectScope.ts

@@ -8,6 +8,10 @@ export class EffectScope {
    * @internal
    */
   private _active = true
+  /**
+   * @internal track `on` calls, allow `on` call multiple times
+   */
+  private _on = 0
   /**
    * @internal
    */
@@ -99,20 +103,27 @@ export class EffectScope {
     }
   }
 
+  prevScope: EffectScope | undefined
   /**
    * This should only be called on non-detached scopes
    * @internal
    */
   on(): void {
+    if (++this._on === 1) {
+      this.prevScope = activeEffectScope
       activeEffectScope = this
     }
+  }
 
   /**
    * This should only be called on non-detached scopes
    * @internal
    */
   off(): void {
-    activeEffectScope = this.parent
+    if (this._on > 0 && --this._on === 0) {
+      activeEffectScope = this.prevScope
+      this.prevScope = undefined
+    }
   }
 
   stop(fromParent?: boolean): void {

packages/reactivity/src/reactive.ts

@@ -108,9 +108,9 @@ export declare const ShallowReactiveMarker: unique symbol
 export type ShallowReactive<T> = T & { [ShallowReactiveMarker]?: true }
 
 /**
- * Shallow version of {@link reactive()}.
+ * Shallow version of {@link reactive}.
  *
- * Unlike {@link reactive()}, there is no deep conversion: only root-level
+ * Unlike {@link reactive}, there is no deep conversion: only root-level
  * properties are reactive for a shallow reactive object. Property values are
  * stored and exposed as-is - this also means properties with ref values will
  * not be automatically unwrapped.
@@ -178,7 +178,7 @@ export type DeepReadonly<T> = T extends Builtin
  * the original.
  *
  * A readonly proxy is deep: any nested property accessed will be readonly as
- * well. It also has the same ref-unwrapping behavior as {@link reactive()},
+ * well. It also has the same ref-unwrapping behavior as {@link reactive},
  * except the unwrapped values will also be made readonly.
  *
  * @example
@@ -215,9 +215,9 @@ export function readonly<T extends object>(
 }
 
 /**
- * Shallow version of {@link readonly()}.
+ * Shallow version of {@link readonly}.
  *
- * Unlike {@link readonly()}, there is no deep conversion: only root-level
+ * Unlike {@link readonly}, there is no deep conversion: only root-level
  * properties are made readonly. Property values are stored and exposed as-is -
  * this also means properties with ref values will not be automatically
  * unwrapped.
@@ -279,16 +279,16 @@ function createReactiveObject(
   ) {
     return target
   }
-  // target already has corresponding Proxy
-  const existingProxy = proxyMap.get(target)
-  if (existingProxy) {
-    return existingProxy
-  }
   // only specific value types can be observed.
   const targetType = getTargetType(target)
   if (targetType === TargetType.INVALID) {
     return target
   }
+  // target already has corresponding Proxy
+  const existingProxy = proxyMap.get(target)
+  if (existingProxy) {
+    return existingProxy
+  }
   const proxy = new Proxy(
     target,
     targetType === TargetType.COLLECTION ? collectionHandlers : baseHandlers,
@@ -298,8 +298,8 @@ function createReactiveObject(
 }
 
 /**
- * Checks if an object is a proxy created by {@link reactive()} or
+ * Checks if an object is a proxy created by {@link reactive} or
- * {@link shallowReactive()} (or {@link ref()} in some cases).
+ * {@link shallowReactive} (or {@link ref} in some cases).
  *
  * @example
  * ```js
@@ -327,7 +327,7 @@ export function isReactive(value: unknown): boolean {
  * readonly object can change, but they can't be assigned directly via the
  * passed object.
  *
- * The proxies created by {@link readonly()} and {@link shallowReadonly()} are
+ * The proxies created by {@link readonly} and {@link shallowReadonly} are
  * both considered readonly, as is a computed ref without a set function.
  *
  * @param value - The value to check.
@@ -343,7 +343,7 @@ export function isShallow(value: unknown): boolean {
 
 /**
  * Checks if an object is a proxy created by {@link reactive},
- * {@link readonly}, {@link shallowReactive} or {@link shallowReadonly()}.
+ * {@link readonly}, {@link shallowReactive} or {@link shallowReadonly}.
  *
  * @param value - The value to check.
  * @see {@link https://vuejs.org/api/reactivity-utilities.html#isproxy}
@@ -356,8 +356,8 @@ export function isProxy(value: any): boolean {
  * Returns the raw, original object of a Vue-created proxy.
  *
  * `toRaw()` can return the original object from proxies created by
- * {@link reactive()}, {@link readonly()}, {@link shallowReactive()} or
+ * {@link reactive}, {@link readonly}, {@link shallowReactive} or
- * {@link shallowReadonly()}.
+ * {@link shallowReadonly}.
  *
  * This is an escape hatch that can be used to temporarily read without
  * incurring proxy access / tracking overhead or write without triggering
@@ -397,7 +397,7 @@ export type Raw<T> = T & { [RawSymbol]?: true }
  * ```
  *
  * **Warning:** `markRaw()` together with the shallow APIs such as
- * {@link shallowReactive()} allow you to selectively opt-out of the default
+ * {@link shallowReactive} allow you to selectively opt-out of the default
  * deep reactive/readonly conversion and embed raw, non-proxied objects in your
  * state graph.
  *

packages/reactivity/src/ref.ts

@@ -67,7 +67,7 @@ export type ShallowRef<T = any, S = T> = Ref<T, S> & {
 }
 
 /**
- * Shallow version of {@link ref()}.
+ * Shallow version of {@link ref}.
  *
  * @example
  * ```js
@@ -229,7 +229,7 @@ export function unref<T>(ref: MaybeRef<T> | ComputedRef<T>): T {
 
 /**
  * Normalizes values / refs / getters to values.
- * This is similar to {@link unref()}, except that it also normalizes getters.
+ * This is similar to {@link unref}, except that it also normalizes getters.
  * If the argument is a getter, it will be invoked and its return value will
  * be returned.
  *
@@ -331,7 +331,7 @@ export type ToRefs<T = any> = {
 /**
  * Converts a reactive object to a plain object where each property of the
  * resulting object is a ref pointing to the corresponding property of the
- * original object. Each individual ref is created using {@link toRef()}.
+ * original object. Each individual ref is created using {@link toRef}.
  *
  * @param object - Reactive object to be made into an object of linked refs.
  * @see {@link https://vuejs.org/api/reactivity-utilities.html#torefs}

packages/runtime-core/__tests__/apiWatch.spec.ts

@@ -31,6 +31,7 @@ import {
   TrackOpTypes,
   TriggerOpTypes,
   effectScope,
+  onScopeDispose,
   shallowReactive,
   shallowRef,
   toRef,
@@ -1982,4 +1983,31 @@ describe('api: watch', () => {
     expect(spy1).toHaveBeenCalled()
     expect(spy2).toHaveBeenCalled()
   })
+
+  // #12631
+  test('this.$watch w/ onScopeDispose', () => {
+    const onCleanup = vi.fn()
+    const toggle = ref(true)
+
+    const Comp = defineComponent({
+      render() {},
+      created(this: any) {
+        this.$watch(
+          () => 1,
+          function () {},
+        )
+        onScopeDispose(onCleanup)
+      },
+    })
+
+    const App = defineComponent({
+      render() {
+        return toggle.value ? h(Comp) : null
+      },
+    })
+
+    const root = nodeOps.createElement('div')
+    createApp(App).mount(root)
+    expect(onCleanup).toBeCalledTimes(0)
+  })
 })

packages/runtime-core/__tests__/componentSlots.spec.ts

@@ -324,4 +324,98 @@ describe('component: slots', () => {
       'Slot "default" invoked outside of the render function',
     ).not.toHaveBeenWarned()
   })
+
+  test('basic warn', () => {
+    const Comp = {
+      setup(_: any, { slots }: any) {
+        slots.default && slots.default()
+        return () => null
+      },
+    }
+
+    const App = {
+      setup() {
+        return () => h(Comp, () => h('div'))
+      },
+    }
+
+    createApp(App).mount(nodeOps.createElement('div'))
+    expect(
+      'Slot "default" invoked outside of the render function',
+    ).toHaveBeenWarned()
+  })
+
+  test('basic warn when mounting another app in setup', () => {
+    const Comp = {
+      setup(_: any, { slots }: any) {
+        slots.default?.()
+        return () => null
+      },
+    }
+
+    const mountComp = () => {
+      createApp({
+        setup() {
+          return () => h(Comp, () => 'msg')
+        },
+      }).mount(nodeOps.createElement('div'))
+    }
+
+    const App = {
+      setup() {
+        mountComp()
+        return () => null
+      },
+    }
+
+    createApp(App).mount(nodeOps.createElement('div'))
+    expect(
+      'Slot "default" invoked outside of the render function',
+    ).toHaveBeenWarned()
+  })
+
+  test('should not warn when render in setup', () => {
+    const container = {
+      setup(_: any, { slots }: any) {
+        return () => slots.default && slots.default()
+      },
+    }
+
+    const comp = h(container, null, () => h('div'))
+
+    const App = {
+      setup() {
+        render(h(comp), nodeOps.createElement('div'))
+        return () => null
+      },
+    }
+
+    createApp(App).mount(nodeOps.createElement('div'))
+    expect(
+      'Slot "default" invoked outside of the render function',
+    ).not.toHaveBeenWarned()
+  })
+
+  test('basic warn when render in setup', () => {
+    const container = {
+      setup(_: any, { slots }: any) {
+        slots.default && slots.default()
+        return () => null
+      },
+    }
+
+    const comp = h(container, null, () => h('div'))
+
+    const App = {
+      setup() {
+        render(h(comp), nodeOps.createElement('div'))
+        return () => null
+      },
+    }
+
+    createApp(App).mount(nodeOps.createElement('div'))
+    expect(
+      'Slot "default" invoked outside of the render function',
+    ).toHaveBeenWarned()
+  })
 })

packages/runtime-core/__tests__/components/Teleport.spec.ts

@@ -10,6 +10,7 @@ import {
   markRaw,
   nextTick,
   nodeOps,
+  onMounted,
   h as originalH,
   ref,
   render,
@@ -18,6 +19,10 @@ import {
 } from '@vue/runtime-test'
 import { Fragment, createCommentVNode, createVNode } from '../../src/vnode'
 import { compile, createApp as createDOMApp, render as domRender } from 'vue'
+import type { HMRRuntime } from '../../src/hmr'
+
+declare var __VUE_HMR_RUNTIME__: HMRRuntime
+const { rerender, createRecord } = __VUE_HMR_RUNTIME__
 
 describe('renderer: teleport', () => {
   describe('eager mode', () => {
@@ -741,4 +746,56 @@ describe('renderer: teleport', () => {
       expect(tRefInMounted).toBe(target.children[1])
     })
   }
+
+  test('handle update and hmr rerender', async () => {
+    const target = document.createElement('div')
+    const root = document.createElement('div')
+
+    const Comp = {
+      setup() {
+        const cls = ref('foo')
+        onMounted(() => {
+          // trigger update
+          cls.value = 'bar'
+        })
+        return { cls, target }
+      },
+      template: `
+        <Teleport :to="target">
+          <div :class="cls">
+            <div>
+              <slot></slot>
+            </div>
+          </div>
+        </Teleport>
+      `,
+    }
+
+    const appId = 'test-app-id'
+    const App = {
+      __hmrId: appId,
+      components: { Comp },
+      render() {
+        return originalH(Comp, null, { default: () => originalH('div', 'foo') })
+      },
+    }
+    createRecord(appId, App)
+
+    domRender(originalH(App), root)
+    expect(target.innerHTML).toBe(
+      '<div class="foo"><div><div>foo</div></div></div>',
+    )
+    await nextTick()
+    expect(target.innerHTML).toBe(
+      '<div class="bar"><div><div>foo</div></div></div>',
+    )
+
+    rerender(appId, () =>
+      originalH(Comp, null, { default: () => originalH('div', 'bar') }),
+    )
+    await nextTick()
+    expect(target.innerHTML).toBe(
+      '<div class="bar"><div><div>bar</div></div></div>',
+    )
+  })
 })

packages/runtime-core/__tests__/helpers/renderList.spec.ts

@@ -1,4 +1,10 @@
-import { isReactive, reactive, shallowReactive } from '../../src/index'
+import {
+  effect,
+  isReactive,
+  reactive,
+  readonly,
+  shallowReactive,
+} from '../../src/index'
 import { renderList } from '../../src/helpers/renderList'
 
 describe('renderList', () => {
@@ -65,4 +71,31 @@ describe('renderList', () => {
     const shallowReactiveArray = shallowReactive([{ foo: 1 }])
     expect(renderList(shallowReactiveArray, isReactive)).toEqual([false])
   })
+
+  it('should not allow mutation', () => {
+    const arr = readonly(reactive([{ foo: 1 }]))
+    expect(
+      renderList(arr, item => {
+        ;(item as any).foo = 0
+        return item.foo
+      }),
+    ).toEqual([1])
+    expect(
+      `Set operation on key "foo" failed: target is readonly.`,
+    ).toHaveBeenWarned()
+  })
+
+  it('should trigger effect for deep mutations in readonly reactive arrays', () => {
+    const arr = reactive([{ foo: 1 }])
+    const readonlyArr = readonly(arr)
+
+    let dummy
+    effect(() => {
+      dummy = renderList(readonlyArr, item => item.foo)
+    })
+    expect(dummy).toEqual([1])
+
+    arr[0].foo = 2
+    expect(dummy).toEqual([2])
+  })
 })

packages/runtime-core/src/apiCreateApp.ts

@@ -36,9 +36,9 @@ export interface App<HostElement = any> {
 
   use<Options extends unknown[]>(
     plugin: Plugin<Options>,
-    ...options: Options
+    ...options: NoInfer<Options>
   ): this
-  use<Options>(plugin: Plugin<Options>, options: Options): this
+  use<Options>(plugin: Plugin<Options>, options: NoInfer<Options>): this
 
   mixin(mixin: ComponentOptions): this
   component(name: string): Component | undefined
@@ -215,9 +215,11 @@ export type ObjectPlugin<Options = any[]> = {
 export type FunctionPlugin<Options = any[]> = PluginInstallFunction<Options> &
   Partial<ObjectPlugin<Options>>
 
-export type Plugin<Options = any[]> =
+export type Plugin<
-  | FunctionPlugin<Options>
+  Options = any[],
-  | ObjectPlugin<Options>
+  // TODO: in next major Options extends unknown[] and remove P
+  P extends unknown[] = Options extends unknown[] ? Options : [Options],
+> = FunctionPlugin<P> | ObjectPlugin<P>
 
 export function createAppContext(): AppContext {
   return {

packages/runtime-core/src/component.ts

@@ -806,7 +806,7 @@ export function setupComponent(
   const { props, children } = instance.vnode
   const isStateful = isStatefulComponent(instance)
   initProps(instance, props, isStateful, isSSR)
-  initSlots(instance, children, optimized)
+  initSlots(instance, children, optimized || isSSR)
 
   const setupResult = isStateful
     ? setupStatefulComponent(instance, isSSR)

packages/runtime-core/src/componentSlots.ts

@@ -17,7 +17,11 @@ import {
 } from '@vue/shared'
 import { warn } from './warning'
 import { isKeepAlive } from './components/KeepAlive'
-import { type ContextualRenderFn, withCtx } from './componentRenderContext'
+import {
+  type ContextualRenderFn,
+  currentRenderingInstance,
+  withCtx,
+} from './componentRenderContext'
 import { isHmrUpdating } from './hmr'
 import { DeprecationTypes, isCompatEnabled } from './compat/compatConfig'
 import { TriggerOpTypes, trigger } from '@vue/reactivity'
@@ -75,6 +79,11 @@ export type RawSlots = {
    * @internal
    */
   _?: SlotFlags
+  /**
+   * cache indexes for slot content
+   * @internal
+   */
+  __?: number[]
 }
 
 const isInternalKey = (key: string) => key[0] === '_' || key === '$stable'
@@ -97,7 +106,8 @@ const normalizeSlot = (
     if (
       __DEV__ &&
       currentInstance &&
-      (!ctx || ctx.root === currentInstance.root)
+      !(ctx === null && currentRenderingInstance) &&
+      !(ctx && ctx.root !== currentInstance.root)
     ) {
       warn(
         `Slot "${key}" invoked outside of the render function: ` +
@@ -170,7 +180,7 @@ const assignSlots = (
     // when rendering the optimized slots by manually written render function,
     // do not copy the `slots._` compiler flag so that `renderSlot` creates
     // slot Fragment with BAIL patchFlag to force full updates
-    if (optimized || key !== '_') {
+    if (optimized || !isInternalKey(key)) {
       slots[key] = children[key]
     }
   }

packages/runtime-core/src/components/KeepAlive.ts

@@ -187,6 +187,11 @@ const KeepAliveImpl: ComponentOptions = {
         // Update components tree
         devtoolsComponentAdded(instance)
       }
+
+      // for e2e test
+      if (__DEV__ && __BROWSER__) {
+        ;(instance as any).__keepAliveStorageContainer = storageContainer
+      }
     }
 
     function unmount(vnode: VNode) {

packages/runtime-core/src/components/Teleport.ts

@@ -220,7 +220,8 @@ export const TeleportImpl = {
         // even in block tree mode we need to make sure all root-level nodes
         // in the teleport inherit previous DOM references so that they can
         // be moved in future patches.
-        traverseStaticChildren(n1, n2, true)
+        // in dev mode, deep traversal is necessary for HMR
+        traverseStaticChildren(n1, n2, !__DEV__)
       } else if (!optimized) {
         patchChildren(
           n1,

packages/runtime-core/src/customFormatter.ts

@@ -4,6 +4,8 @@ import {
   isReadonly,
   isRef,
   isShallow,
+  pauseTracking,
+  resetTracking,
   toRaw,
 } from '@vue/reactivity'
 import { EMPTY_OBJ, extend, isArray, isFunction, isObject } from '@vue/shared'
@@ -34,13 +36,16 @@ export function initCustomFormatter(): void {
       if (obj.__isVue) {
         return ['div', vueStyle, `VueInstance`]
       } else if (isRef(obj)) {
+        // avoid tracking during debugger accessing
+        pauseTracking()
+        const value = obj.value
+        resetTracking()
         return [
           'div',
           {},
           ['span', vueStyle, genRefFlag(obj)],
           '<',
-          // avoid debugger accessing value affecting behavior
+          formatValue(value),
-          formatValue('_value' in obj ? obj._value : obj),
           `>`,
         ]
       } else if (isReactive(obj)) {

packages/runtime-core/src/directives.ts

@@ -111,7 +111,9 @@ export type Directive<
   | ObjectDirective<HostElement, Value, Modifiers, Arg>
   | FunctionDirective<HostElement, Value, Modifiers, Arg>
 
-export type DirectiveModifiers<K extends string = string> = Record<K, boolean>
+export type DirectiveModifiers<K extends string = string> = Partial<
+  Record<K, boolean>
+>
 
 export function validateDirectiveName(name: string): void {
   if (isBuiltInDirective(name)) {

packages/runtime-core/src/helpers/renderList.ts

@@ -1,9 +1,11 @@
 import type { VNode, VNodeChild } from '../vnode'
 import {
   isReactive,
+  isReadonly,
   isShallow,
   shallowReadArray,
   toReactive,
+  toReadonly,
 } from '@vue/reactivity'
 import { isArray, isObject, isString } from '@vue/shared'
 import { warn } from '../warning'
@@ -69,14 +71,20 @@ export function renderList(
   if (sourceIsArray || isString(source)) {
     const sourceIsReactiveArray = sourceIsArray && isReactive(source)
     let needsWrap = false
+    let isReadonlySource = false
     if (sourceIsReactiveArray) {
       needsWrap = !isShallow(source)
+      isReadonlySource = isReadonly(source)
       source = shallowReadArray(source)
     }
     ret = new Array(source.length)
     for (let i = 0, l = source.length; i < l; i++) {
       ret[i] = renderItem(
-        needsWrap ? toReactive(source[i]) : source[i],
+        needsWrap
+          ? isReadonlySource
+            ? toReadonly(toReactive(source[i]))
+            : toReactive(source[i])
+          : source[i],
         i,
         undefined,
         cached && cached[i],

packages/runtime-core/src/helpers/useTemplateRef.ts

@@ -5,9 +5,11 @@ import { EMPTY_OBJ } from '@vue/shared'
 
 export const knownTemplateRefs: WeakSet<ShallowRef> = new WeakSet()
 
+export type TemplateRef<T = unknown> = Readonly<ShallowRef<T | null>>
+
 export function useTemplateRef<T = unknown, Keys extends string = string>(
   key: Keys,
-): Readonly<ShallowRef<T | null>> {
+): TemplateRef<T> {
   const i = getCurrentInstance()
   const r = shallowRef(null)
   if (i) {

packages/runtime-core/src/index.ts

@@ -64,7 +64,7 @@ export { defineComponent } from './apiDefineComponent'
 export { defineAsyncComponent } from './apiAsyncComponent'
 export { useAttrs, useSlots } from './apiSetupHelpers'
 export { useModel } from './helpers/useModel'
-export { useTemplateRef } from './helpers/useTemplateRef'
+export { useTemplateRef, type TemplateRef } from './helpers/useTemplateRef'
 export { useId } from './helpers/useId'
 export {
   hydrateOnIdle,

packages/runtime-core/src/renderer.ts

@@ -2049,7 +2049,13 @@ function baseCreateRenderer(
         queuePostRenderEffect(() => transition!.enter(el!), parentSuspense)
       } else {
         const { leave, delayLeave, afterLeave } = transition!
-        const remove = () => hostInsert(el!, container, anchor)
+        const remove = () => {
+          if (vnode.ctx!.isUnmounted) {
+            hostRemove(el!)
+          } else {
+            hostInsert(el!, container, anchor)
+          }
+        }
         const performLeave = () => {
           leave(el!, () => {
             remove()
@@ -2092,7 +2098,9 @@ function baseCreateRenderer(
 
     // unset ref
     if (ref != null) {
+      pauseTracking()
       setRef(ref, null, parentSuspense, vnode, true)
+      resetTracking()
     }
 
     // #6593 should clean memo cache when unmount
@@ -2256,7 +2264,17 @@ function baseCreateRenderer(
       unregisterHMR(instance)
     }
 
-    const { bum, scope, job, subTree, um, m, a } = instance
+    const {
+      bum,
+      scope,
+      job,
+      subTree,
+      um,
+      m,
+      a,
+      parent,
+      slots: { __: slotCacheKeys },
+    } = instance
     invalidateMount(m)
     invalidateMount(a)
 
@@ -2265,6 +2283,13 @@ function baseCreateRenderer(
       invokeArrayFns(bum)
     }
 
+    // remove slots content from parent renderCache
+    if (parent && isArray(slotCacheKeys)) {
+      slotCacheKeys.forEach(v => {
+        parent.renderCache[v] = undefined
+      })
+    }
+
     if (
       __COMPAT__ &&
       isCompatEnabled(DeprecationTypes.INSTANCE_EVENT_HOOKS, instance)
@@ -2478,11 +2503,15 @@ export function traverseStaticChildren(
       if (c2.type === Text) {
         c2.el = c1.el
       }
-      // also inherit for comment nodes, but not placeholders (e.g. v-if which
+      if (__DEV__) {
+        // #2324 also inherit for comment nodes, but not placeholders (e.g. v-if which
         // would have received .el during block patch)
-      if (__DEV__ && c2.type === Comment && !c2.el) {
+        if (c2.type === Comment && !c2.el) {
           c2.el = c1.el
         }
+
+        c2.el && (c2.el.__vnode = c2)
+      }
     }
   }
 }

packages/runtime-dom/src/components/TransitionGroup.ts

@@ -81,6 +81,7 @@ const TransitionGroupImpl: ComponentOptions = /*@__PURE__*/ decorate({
           moveClass,
         )
       ) {
+        prevChildren = []
         return
       }
 
@@ -110,6 +111,7 @@ const TransitionGroupImpl: ComponentOptions = /*@__PURE__*/ decorate({
         })
         el.addEventListener('transitionend', cb)
       })
+      prevChildren = []
     })
 
     return () => {

packages/runtime-dom/src/patchProp.ts

@@ -102,7 +102,12 @@ function shouldSetAsProp(
   // them as attributes.
   // Note that `contentEditable` doesn't have this problem: its DOM
   // property is also enumerated string values.
-  if (key === 'spellcheck' || key === 'draggable' || key === 'translate') {
+  if (
+    key === 'spellcheck' ||
+    key === 'draggable' ||
+    key === 'translate' ||
+    key === 'autocorrect'
+  ) {
     return false
   }
 

packages/server-renderer/__tests__/ssrSlot.spec.ts

@@ -1,4 +1,4 @@
-import { createApp } from 'vue'
+import { createApp, defineAsyncComponent, h } from 'vue'
 import { renderToString } from '../src/renderToString'
 
 const components = {
@@ -154,6 +154,38 @@ describe('ssr: slot', () => {
     ).toBe(`<div><p>1</p><p>2</p></div>`)
   })
 
+  // #12438
+  test('async component slot with v-if true', async () => {
+    const Layout = defineAsyncComponent(() =>
+      Promise.resolve({
+        template: `<div><slot name="header">default header</slot></div>`,
+      }),
+    )
+    const LayoutLoader = {
+      setup(_: any, context: any) {
+        return () => h(Layout, {}, context.slots)
+      },
+    }
+    expect(
+      await renderToString(
+        createApp({
+          components: {
+            LayoutLoader,
+          },
+          template: `
+            <Suspense>
+              <LayoutLoader>
+                <template v-if="true" #header>
+                  new header
+                </template>
+              </LayoutLoader>
+            </Suspense>
+          `,
+        }),
+      ),
+    ).toBe(`<div><!--[--> new header <!--]--></div>`)
+  })
+
   // #11326
   test('dynamic component slot', async () => {
     expect(

packages/vue/__tests__/e2e/Transition.spec.ts

@@ -1,3 +1,4 @@
+import type { ElementHandle } from 'puppeteer'
 import { E2E_TIMEOUT, setupPuppeteer } from './e2eUtils'
 import path from 'node:path'
 import { Transition, createApp, h, nextTick, ref } from 'vue'
@@ -1653,6 +1654,74 @@ describe('e2e: Transition', () => {
       },
       E2E_TIMEOUT,
     )
+
+    // #12860
+    test(
+      'unmount children',
+      async () => {
+        const unmountSpy = vi.fn()
+        let storageContainer: ElementHandle<HTMLDivElement>
+        const setStorageContainer = (container: any) =>
+          (storageContainer = container)
+        await page().exposeFunction('unmountSpy', unmountSpy)
+        await page().exposeFunction('setStorageContainer', setStorageContainer)
+        await page().evaluate(() => {
+          const { unmountSpy, setStorageContainer } = window as any
+          const { createApp, ref, h, onUnmounted, getCurrentInstance } = (
+            window as any
+          ).Vue
+          createApp({
+            template: `
+            <div id="container">
+              <transition>
+                <KeepAlive :include="includeRef">
+                  <TrueBranch v-if="toggle"></TrueBranch>
+                </KeepAlive>
+              </transition>
+            </div>
+            <button id="toggleBtn" @click="click">button</button>
+          `,
+            components: {
+              TrueBranch: {
+                name: 'TrueBranch',
+                setup() {
+                  const instance = getCurrentInstance()
+                  onUnmounted(() => {
+                    unmountSpy()
+                    setStorageContainer(instance.__keepAliveStorageContainer)
+                  })
+                  const count = ref(0)
+                  return () => h('div', count.value)
+                },
+              },
+            },
+            setup: () => {
+              const includeRef = ref(['TrueBranch'])
+              const toggle = ref(true)
+              const click = () => {
+                toggle.value = !toggle.value
+                if (toggle.value) {
+                  includeRef.value = ['TrueBranch']
+                } else {
+                  includeRef.value = []
+                }
+              }
+              return { toggle, click, unmountSpy, includeRef }
+            },
+          }).mount('#app')
+        })
+
+        await transitionFinish()
+        expect(await html('#container')).toBe('<div>0</div>')
+
+        await click('#toggleBtn')
+        await transitionFinish()
+        expect(await html('#container')).toBe('<!--v-if-->')
+        expect(unmountSpy).toBeCalledTimes(1)
+        expect(await storageContainer!.evaluate(x => x.innerHTML)).toBe(``)
+      },
+      E2E_TIMEOUT,
+    )
   })
 
   describe('transition with Suspense', () => {

packages/vue/__tests__/e2e/TransitionGroup.spec.ts

@@ -645,4 +645,55 @@ describe('e2e: TransitionGroup', () => {
     },
     E2E_TIMEOUT,
   )
+
+  test(
+    'not leaking after children unmounted',
+    async () => {
+      const client = await page().createCDPSession()
+      await page().evaluate(async () => {
+        const { createApp, ref, nextTick } = (window as any).Vue
+        const show = ref(true)
+
+        createApp({
+          components: {
+            Child: {
+              setup: () => {
+                // Big arrays kick GC earlier
+                const test = ref([...Array(3000)].map((_, i) => ({ i })))
+                // @ts-expect-error - Custom property and same lib as runtime is used
+                window.__REF__ = new WeakRef(test)
+
+                return { test }
+              },
+              template: `
+              <p>{{ test.length }}</p>
+            `,
+            },
+          },
+          template: `
+          <transition-group>
+            <Child v-if="show" />
+          </transition-group>
+        `,
+          setup() {
+            return { show }
+          },
+        }).mount('#app')
+
+        show.value = false
+        await nextTick()
+      })
+
+      const isCollected = async () =>
+        // @ts-expect-error - Custom property
+        await page().evaluate(() => window.__REF__.deref() === undefined)
+
+      while ((await isCollected()) === false) {
+        await client.send('HeapProfiler.collectGarbage')
+      }
+
+      expect(await isCollected()).toBe(true)
+    },
+    E2E_TIMEOUT,
+  )
 })

packages/vue/__tests__/e2e/e2eUtils.ts

@@ -1,13 +1,13 @@
 import puppeteer, {
   type Browser,
   type ClickOptions,
+  type LaunchOptions,
   type Page,
-  type PuppeteerLaunchOptions,
 } from 'puppeteer'
 
 export const E2E_TIMEOUT: number = 30 * 1000
 
-const puppeteerOptions: PuppeteerLaunchOptions = {
+const puppeteerOptions: LaunchOptions = {
   args: process.env.CI ? ['--no-sandbox', '--disable-setuid-sandbox'] : [],
   headless: true,
 }

packages/vue/__tests__/e2e/todomvc.spec.ts

@@ -14,6 +14,7 @@ describe('e2e: todomvc', () => {
     classList,
     enterValue,
     clearValue,
+    timeout,
   } = setupPuppeteer()
 
   async function removeItemAt(n: number) {
@@ -101,6 +102,7 @@ describe('e2e: todomvc', () => {
 
     // active filter
     await click('.filters li:nth-child(2) a')
+    await timeout(1)
     expect(await count('.todo')).toBe(1)
     expect(await count('.todo.completed')).toBe(0)
     // add item with filter active
@@ -109,6 +111,7 @@ describe('e2e: todomvc', () => {
 
     // completed filter
     await click('.filters li:nth-child(3) a')
+    await timeout(1)
     expect(await count('.todo')).toBe(2)
     expect(await count('.todo.completed')).toBe(2)
 
@@ -128,13 +131,15 @@ describe('e2e: todomvc', () => {
     await click('.todo .toggle')
     expect(await count('.todo')).toBe(1)
     await click('.filters li:nth-child(2) a')
+    await timeout(1)
     expect(await count('.todo')).toBe(3)
     await click('.todo .toggle')
     expect(await count('.todo')).toBe(2)
 
     // editing triggered by blur
     await click('.filters li:nth-child(1) a')
-    await click('.todo:nth-child(1) label', { clickCount: 2 })
+    await timeout(1)
+    await click('.todo:nth-child(1) label', { count: 2 })
     expect(await count('.todo.editing')).toBe(1)
     expect(await isFocused('.todo:nth-child(1) .edit')).toBe(true)
     await clearValue('.todo:nth-child(1) .edit')
@@ -144,13 +149,13 @@ describe('e2e: todomvc', () => {
     expect(await text('.todo:nth-child(1) label')).toBe('edited!')
 
     // editing triggered by enter
-    await click('.todo label', { clickCount: 2 })
+    await click('.todo label', { count: 2 })
     await enterValue('.todo:nth-child(1) .edit', 'edited again!')
     expect(await count('.todo.editing')).toBe(0)
     expect(await text('.todo:nth-child(1) label')).toBe('edited again!')
 
     // cancel
-    await click('.todo label', { clickCount: 2 })
+    await click('.todo label', { count: 2 })
     await clearValue('.todo:nth-child(1) .edit')
     await page().type('.todo:nth-child(1) .edit', 'edited!')
     await page().keyboard.press('Escape')
@@ -158,7 +163,7 @@ describe('e2e: todomvc', () => {
     expect(await text('.todo:nth-child(1) label')).toBe('edited again!')
 
     // empty value should remove
-    await click('.todo label', { clickCount: 2 })
+    await click('.todo label', { count: 2 })
     await enterValue('.todo:nth-child(1) .edit', ' ')
     expect(await count('.todo')).toBe(3)
 

packages/vue/__tests__/e2e/tree.spec.ts

@@ -88,7 +88,7 @@ describe('e2e: tree', () => {
     expect(await isVisible('#demo ul')).toBe(true)
     expect(await text('#demo li div span')).toContain('[-]')
 
-    await click('#demo ul > .item div', { clickCount: 2 })
+    await click('#demo ul > .item div', { count: 2 })
     expect(await count('.item')).toBe(15)
     expect(await count('.item > ul')).toBe(5)
     expect(await text('#demo ul > .item:nth-child(1)')).toContain('[-]')

pnpm-workspace.yaml

@@ -3,10 +3,25 @@ packages:
   - 'packages-private/*'
 
 catalog:
-  '@babel/parser': ^7.25.3
+  '@babel/parser': ^7.27.1
-  '@babel/types': ^7.25.2
+  '@babel/types': ^7.27.1
   'estree-walker': ^2.0.2
-  'magic-string': ^0.30.11
+  'magic-string': ^0.30.17
-  'source-map-js': ^1.2.0
+  'source-map-js': ^1.2.1
-  'vite': ^5.4.0
+  'vite': ^5.4.15
-  '@vitejs/plugin-vue': ^5.1.2
+  '@vitejs/plugin-vue': ^5.2.4
+
+onlyBuiltDependencies:
+  - '@swc/core'
+  - 'esbuild'
+  - 'puppeteer'
+  - 'simple-git-hooks'
+  - 'unrs-resolver'
+
+peerDependencyRules:
+  allowedVersions:
+    'typescript-eslint>eslint': '^9.0.0'
+    '@typescript-eslint/eslint-plugin>eslint': '^9.0.0'
+    '@typescript-eslint/parser>eslint': '^9.0.0'
+    '@typescript-eslint/type-utils>eslint': '^9.0.0'
+    '@typescript-eslint/utils>eslint': '^9.0.0'

scripts/size-report.js

@@ -111,7 +111,7 @@ async function renderUsages() {
  */
 async function importJSON(filePath) {
   if (!existsSync(filePath)) return undefined
-  return (await import(filePath, { assert: { type: 'json' } })).default
+  return (await import(filePath, { with: { type: 'json' } })).default
 }
 
 /**

scripts/verify-treeshaking.js

@@ -36,7 +36,7 @@ exec('pnpm', ['build', 'vue', '-f', 'global-runtime']).then(() => {
     prodBuild.includes('annotation,annotation-xml,maction')
   ) {
     errors.push(
-      'prod build contains unexpected domTagConifg lists.\n' +
+      'prod build contains unexpected domTagConfig lists.\n' +
         'This means helpers like isHTMLTag() is used in runtime code paths when it should be compiler-only.',
     )
   }

tsconfig.build.json

@@ -17,7 +17,6 @@
     "packages/runtime-dom/src",
     "packages/reactivity/src",
     "packages/shared/src",
-    "packages/global.d.ts",
     "packages/compiler-sfc/src",
     "packages/compiler-ssr/src",
     "packages/server-renderer/src"

vitest.config.ts

@@ -1,4 +1,4 @@
-import { configDefaults, defineConfig } from 'vitest/config'
+import { defineConfig } from 'vitest/config'
 import { entries } from './scripts/aliases.js'
 
 export default defineConfig({