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fix(hydration): add null check to toStyleMap function to prevent TypeError #10786

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fix(hydration): add null check to toStyleMap function to prevent TypeError #10786

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dsbalico
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This pull request addresses a TypeError that occurs when switching to different routes. The issue arises due to potential null values in the str parameter of the toStyleMap function. To resolve this, I have added a null check at the beginning of the function to handle cases where str is null or undefined, preventing the TypeError from occurring.

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@skirtles-code
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I believe this Playground shows a reproduction of the error:

Not sure whether there's a simpler way to hit this edge case.

@skirtles-code
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Could you add a test for this? There seem to be other tests for style mismatches in hydration.spec.ts, just not for this edge case.

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github-actions bot commented May 6, 2024

Size Report

Bundles

File Size Gzip Brotli
runtime-dom.global.prod.js 90.7 kB (-9 B) 34.5 kB (+8 B) 31.1 kB (+6 B)
vue.global.prod.js 148 kB (+97 B) 53.8 kB (+63 B) 48.1 kB (+88 B)

Usages

Name Size Gzip Brotli
createApp 50.7 kB (-35 B) 19.8 kB (-38 B) 18.1 kB (-18 B)
createSSRApp 54.1 kB (-35 B) 21.2 kB (-15 B) 19.3 kB
defineCustomElement 53 kB (-35 B) 20.6 kB (-16 B) 18.8 kB (+13 B)
overall 64.5 kB (-6 B) 24.9 kB (-2 B) 22.6 kB (+21 B)

yyx990803 added a commit that referenced this pull request May 6, 2024
@yyx990803
fix(hydration): handle edge case of style mismatch without style attr…
f2c1412 
…ibute

ref #10786
@yyx990803
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Thanks for the PR - looks like the root cause of this is the types of actual and expected are too lax and thus we didn't catch the case where el.getAttribute('style') could possibly be null. I fixed it with a test in f2c1412.

@yyx990803 yyx990803 closed this May 6, 2024
danroux pushed a commit to danroux/sk8l-ui that referenced this pull request May 8, 2024
@dependabot
npm:(deps): bump vue from 3.4.18 to 3.4.27 (#60)
4e6b179 
## [3.4.27](vuejs/core@v3.4.26...v3.4.27) (2024-05-06)

### Bug Fixes

* **compat:** include legacy scoped slots ([#10868](vuejs/core#10868)) ([8366126](vuejs/core@8366126)), closes [#8869](vuejs/core#8869)
* **compiler-core:** add support for arrow aysnc function with unbracketed ([#5789](vuejs/core#5789)) ([ca7d421](vuejs/core@ca7d421)), closes [#5788](vuejs/core#5788)
* **compiler-dom:** restrict createStaticVNode usage with option elements ([#10846](vuejs/core#10846)) ([0e3d617](vuejs/core@0e3d617)), closes [#6568](vuejs/core#6568) [#7434](vuejs/core#7434)
* **compiler-sfc:** handle keyof operator ([#10874](vuejs/core#10874)) ([10d34a5](vuejs/core@10d34a5)), closes [#10871](vuejs/core#10871)
* **hydration:** handle edge case of style mismatch without style attribute ([f2c1412](vuejs/core@f2c1412)), closes [#10786](vuejs/core#10786)

## [3.4.26](vuejs/core@v3.4.25...v3.4.26) (2024-04-29)

### Bug Fixes

* **compiler-core:** fix bail constant for globals ([fefce06](vuejs/core@fefce06))
* **compiler-core:** remove unnecessary constant bail check ([09b4df8](vuejs/core@09b4df8)), closes [#10807](vuejs/core#10807)
* **runtime-core:** attrs should be readonly in functional components ([#10767](vuejs/core#10767)) ([e8fd644](vuejs/core@e8fd644))
* **runtime-core:** ensure slot compiler marker writable ([#10825](vuejs/core#10825)) ([9c2de62](vuejs/core@9c2de62)), closes [#10818](vuejs/core#10818)
* **runtime-core:** properly handle inherit transition during clone VNode ([#10809](vuejs/core#10809)) ([638a79f](vuejs/core@638a79f)), closes [#3716](vuejs/core#3716) [#10497](vuejs/core#10497) [#4091](vuejs/core#4091)
* **Transition:** re-fix [#10620](vuejs/core#10620) ([#10832](vuejs/core#10832)) ([accf839](vuejs/core@accf839)), closes [#10632](vuejs/core#10632) [#10827](vuejs/core#10827)

## [3.4.25](vuejs/core@v3.4.24...v3.4.25) (2024-04-24)

### Bug Fixes

* **defineModel:** align prod mode runtime type generation with defineProps ([4253a57](vuejs/core@4253a57)), closes [#10769](vuejs/core#10769)
* **runtime-core:** properly get keepAlive child ([#10772](vuejs/core#10772)) ([3724693](vuejs/core@3724693)), closes [#10771](vuejs/core#10771)
* **runtime-core:** use normal object as internal prototype for attrs and slots ([064e82f](vuejs/core@064e82f)), closes [/github.com/vuejs/core/commit/6df53d85a207986128159d88565e6e7045db2add#r141304923](https://github.com//github.com/vuejs/core/commit/6df53d85a207986128159d88565e6e7045db2add/issues/r141304923)

## [3.4.24](vuejs/core@v3.4.23...v3.4.24) (2024-04-22)

### Bug Fixes

* **compiler-core:** handle template ref bound via v-bind object on v-for ([#10706](vuejs/core#10706)) ([da7adef](vuejs/core@da7adef)), closes [#10696](vuejs/core#10696)
* **compiler-core:** properly parse await expressions in edge cases ([b92c25f](vuejs/core@b92c25f)), closes [#10754](vuejs/core#10754)
* **compiler-sfc:** handle readonly operator and ReadonlyArray/Map/Set types ([5cef52a](vuejs/core@5cef52a)), closes [#10726](vuejs/core#10726)
* **compiler-ssr:** fix hydration mismatch for conditional slot in transition ([f12c81e](vuejs/core@f12c81e)), closes [#10743](vuejs/core#10743)
* **compiler-ssr:** fix v-html SSR for nullish values ([1ff4076](vuejs/core@1ff4076)), closes [#10725](vuejs/core#10725)
* **deps:** update compiler ([#10760](vuejs/core#10760)) ([15df5c1](vuejs/core@15df5c1))
* **runtime-core:** fix edge case of KeepAlive inside Transition with slot children ([#10719](vuejs/core#10719)) ([e51ca61](vuejs/core@e51ca61)), closes [#10708](vuejs/core#10708)
* **runtime-core:** further fix slots _ctx check ([cde7f05](vuejs/core@cde7f05)), closes [#10724](vuejs/core#10724)
* **runtime-core:** props should be readonly via direct template access ([b93f264](vuejs/core@b93f264)), closes [#8216](vuejs/core#8216) [#10736](vuejs/core#10736)
* **transition:** transition is breaking/flickering when enter is canceled ([#10688](vuejs/core#10688)) ([65109a7](vuejs/core@65109a7))

## [3.4.23](vuejs/core@v3.4.22...v3.4.23) (2024-04-16)

### Bug Fixes

* **runtime-core:** fix regression for $attrs tracking in slots ([6930e60](vuejs/core@6930e60)), closes [#10710](vuejs/core#10710)
* **runtime-core:** use same internal object mechanism for slots ([6df53d8](vuejs/core@6df53d8)), closes [#10709](vuejs/core#10709)

## [3.4.22](vuejs/core@v3.4.21...v3.4.22) (2024-04-15)

### Bug Fixes

* **compat:** fix $options mutation + adjust private API initialization ([d58d133](vuejs/core@d58d133)), closes [#10626](vuejs/core#10626) [#10636](vuejs/core#10636)
* **compile-sfc:** analyze v-bind shorthand usage in template ([#10518](vuejs/core#10518)) ([e5919d4](vuejs/core@e5919d4)), closes [#10515](vuejs/core#10515)
* **compiler-core:** fix loc.source for end tags with whitespace before > ([16174da](vuejs/core@16174da)), closes [#10694](vuejs/core#10694) [#10695](vuejs/core#10695)
* **compiler-core:** fix v-bind shorthand for component :is ([04af950](vuejs/core@04af950)), closes [#10469](vuejs/core#10469) [#10471](vuejs/core#10471)
* **compiler-sfc:** :is() and :where() in compound selectors ([#10522](vuejs/core#10522)) ([660cadc](vuejs/core@660cadc)), closes [#10511](vuejs/core#10511)
* **compiler-sfc:** also search for `.tsx` when type import's extension is omitted  ([#10637](vuejs/core#10637)) ([34106bc](vuejs/core@34106bc)), closes [#10635](vuejs/core#10635)
* **compiler-sfc:** fix defineModel coercion for boolean + string union types ([#9603](vuejs/core#9603)) ([0cef65c](vuejs/core@0cef65c)), closes [#9587](vuejs/core#9587) [#10676](vuejs/core#10676)
* **compiler-sfc:** fix universal selector scope ([#10551](vuejs/core#10551)) ([54a6afa](vuejs/core@54a6afa)), closes [#10548](vuejs/core#10548)
* **compiler-sfc:** use options module name if options provide runtimeModuleName options ([#10457](vuejs/core#10457)) ([e76d743](vuejs/core@e76d743)), closes [#10454](vuejs/core#10454)
* **custom-element:** avoid setting attr to null if it is removed ([#9012](vuejs/core#9012)) ([b49306a](vuejs/core@b49306a)), closes [#9006](vuejs/core#9006) [#10324](vuejs/core#10324)
* **hydration:** properly handle optimized mode during hydrate node ([#10638](vuejs/core#10638)) ([2ec06fd](vuejs/core@2ec06fd)), closes [#10607](vuejs/core#10607)
* **reactivity:** computed should not be detected as true by isProxy ([#10401](vuejs/core#10401)) ([9da34d7](vuejs/core@9da34d7))
* **reactivity:** fix hasOwnProperty key coercion edge cases ([969c5fb](vuejs/core@969c5fb))
* **reactivity:** fix tracking when hasOwnProperty is called with non-string value ([c3c5dc9](vuejs/core@c3c5dc9)), closes [#10455](vuejs/core#10455) [#10464](vuejs/core#10464)
* **runtime-core:** fix errorHandler causes an infinite loop during execution ([#9575](vuejs/core#9575)) ([ab59bed](vuejs/core@ab59bed))
* **runtime-core:** handle invalid values in callWithAsyncErrorHandling ([53d15d3](vuejs/core@53d15d3))
* **runtime-core:** show hydration mismatch details for non-rectified mismatches too when __PROD_HYDRATION_MISMATCH_DETAILS__ is set ([#10599](vuejs/core#10599)) ([0dea7f9](vuejs/core@0dea7f9))
* **runtime-dom:** `v-model` string/number coercion for multiselect options ([#10576](vuejs/core#10576)) ([db374e5](vuejs/core@db374e5))
* **runtime-dom:** fix css v-bind for suspensed components ([#8523](vuejs/core#8523)) ([67722ba](vuejs/core@67722ba)), closes [#8520](vuejs/core#8520)
* **runtime-dom:** force update v-model number with leading 0 ([#10506](vuejs/core#10506)) ([15ffe8f](vuejs/core@15ffe8f)), closes [#10503](vuejs/core#10503) [#10615](vuejs/core#10615)
* **runtime-dom:** sanitize wrongly passed string value as event handler ([#8953](vuejs/core#8953)) ([7ccd453](vuejs/core@7ccd453)), closes [#8818](vuejs/core#8818)
* **ssr:** don't render v-if comments in TransitionGroup ([#6732](vuejs/core#6732)) ([5a96267](vuejs/core@5a96267)), closes [#6715](vuejs/core#6715)
* **Transition:** ensure the KeepAlive children unmount w/ out-in mode ([#10632](vuejs/core#10632)) ([fc99e4d](vuejs/core@fc99e4d)), closes [#10620](vuejs/core#10620)
* **TransitionGroup:** avoid set transition hooks for comment nodes and text nodes ([#9421](vuejs/core#9421)) ([140a768](vuejs/core@140a768)), closes [#4621](vuejs/core#4621) [#4622](vuejs/core#4622) [#5153](vuejs/core#5153) [#5168](vuejs/core#5168) [#7898](vuejs/core#7898) [#9067](vuejs/core#9067)
* **types:** avoid merging object union types when using withDefaults ([#10596](vuejs/core#10596)) ([37ba93c](vuejs/core@37ba93c)), closes [#10594](vuejs/core#10594)

### Performance Improvements

* add `__NO_SIDE_EFFECTS__` comments ([#9053](vuejs/core#9053)) ([d46df6b](vuejs/core@d46df6b))
* optimize component props/slots internal object checks ([6af733d](vuejs/core@6af733d))
* **ssr:** avoid calling markRaw on component instance proxy ([4bc9f39](vuejs/core@4bc9f39))
* **ssr:** optimize setup context creation for ssr in v8 ([ca84316](vuejs/core@ca84316))

## [3.4.21](vuejs/core@v3.4.20...v3.4.21) (2024-02-28)

### Bug Fixes

* **runtime-dom:** avoid unset option's value ([#10416](vuejs/core#10416)) ([b3f8b5a](vuejs/core@b3f8b5a)), closes [#10412](vuejs/core#10412) [#10396](vuejs/core#10396)
* **suspense:** ensure nested suspense patching if in fallback state ([#10417](vuejs/core#10417)) ([7c97778](vuejs/core@7c97778)), closes [#10415](vuejs/core#10415)
* **warning:** stringify args in warn handler ([#10414](vuejs/core#10414)) ([bc37258](vuejs/core@bc37258)), closes [#10409](vuejs/core#10409)

## [3.4.20](vuejs/core@v3.4.19...v3.4.20) (2024-02-26)

### Bug Fixes

* **parser:** should not treat uppercase components as special tags ([e0e0253](vuejs/core@e0e0253)), closes [#10395](vuejs/core#10395)
* **runtime-dom:** avoid always resetting nullish option value ([ff130c4](vuejs/core@ff130c4)), closes [#10396](vuejs/core#10396)
* **runtime-dom:** fix nested v-show priority regression ([364f890](vuejs/core@364f890)), closes [#10338](vuejs/core#10338)
* **runtime-dom:** v-bind style should clear previous css string value ([#10373](vuejs/core#10373)) ([e2d3235](vuejs/core@e2d3235)), closes [#10352](vuejs/core#10352)
* **suspense:** handle suspense switching with nested suspense  ([#10184](vuejs/core#10184)) ([0f3da05](vuejs/core@0f3da05)), closes [#10098](vuejs/core#10098)
* **types:** better typing for direct setup signature of defineComponent ([#10357](vuejs/core#10357)) ([eadce5b](vuejs/core@eadce5b)), closes [#8604](vuejs/core#8604) [#8855](vuejs/core#8855)

## [3.4.19](vuejs/core@v3.4.18...v3.4.19) (2024-02-13)

### Bug Fixes

* **deps:** pin lru-cache to avoid hashing error ([b8be990](vuejs/core@b8be990)), closes [#10300](vuejs/core#10300)
* **hydration:** fix css vars hydration mismatch false positive on non-root nodes ([995d2fd](vuejs/core@995d2fd)), closes [#10317](vuejs/core#10317) [#10325](vuejs/core#10325)
* **runtime-dom:** should not trigger transition when v-show value is falsy ([#10311](vuejs/core#10311)) ([e509639](vuejs/core@e509639))

### Features

> Note: this warning is categorized as a feature but released in a patch because it does not affect public APIs.

* **dx:** warn users when computed is self-triggering ([#10299](vuejs/core#10299)) ([f7ba97f](vuejs/core@f7ba97f))

### Performance Improvements

* **runtime:** improve `getType()` GC and speed ([#10327](vuejs/core#10327)) ([603a1e1](vuejs/core@603a1e1))
danroux pushed a commit to danroux/sk8l-ui that referenced this pull request May 8, 2024
@dependabot @danroux
npm:(deps): bump vue from 3.4.18 to 3.4.27 (#60)
e6e642f 
## [3.4.27](vuejs/core@v3.4.26...v3.4.27) (2024-05-06)

### Bug Fixes

* **compat:** include legacy scoped slots ([#10868](vuejs/core#10868)) ([8366126](vuejs/core@8366126)), closes [#8869](vuejs/core#8869)
* **compiler-core:** add support for arrow aysnc function with unbracketed ([#5789](vuejs/core#5789)) ([ca7d421](vuejs/core@ca7d421)), closes [#5788](vuejs/core#5788)
* **compiler-dom:** restrict createStaticVNode usage with option elements ([#10846](vuejs/core#10846)) ([0e3d617](vuejs/core@0e3d617)), closes [#6568](vuejs/core#6568) [#7434](vuejs/core#7434)
* **compiler-sfc:** handle keyof operator ([#10874](vuejs/core#10874)) ([10d34a5](vuejs/core@10d34a5)), closes [#10871](vuejs/core#10871)
* **hydration:** handle edge case of style mismatch without style attribute ([f2c1412](vuejs/core@f2c1412)), closes [#10786](vuejs/core#10786)

## [3.4.26](vuejs/core@v3.4.25...v3.4.26) (2024-04-29)

### Bug Fixes

* **compiler-core:** fix bail constant for globals ([fefce06](vuejs/core@fefce06))
* **compiler-core:** remove unnecessary constant bail check ([09b4df8](vuejs/core@09b4df8)), closes [#10807](vuejs/core#10807)
* **runtime-core:** attrs should be readonly in functional components ([#10767](vuejs/core#10767)) ([e8fd644](vuejs/core@e8fd644))
* **runtime-core:** ensure slot compiler marker writable ([#10825](vuejs/core#10825)) ([9c2de62](vuejs/core@9c2de62)), closes [#10818](vuejs/core#10818)
* **runtime-core:** properly handle inherit transition during clone VNode ([#10809](vuejs/core#10809)) ([638a79f](vuejs/core@638a79f)), closes [#3716](vuejs/core#3716) [#10497](vuejs/core#10497) [#4091](vuejs/core#4091)
* **Transition:** re-fix [#10620](vuejs/core#10620) ([#10832](vuejs/core#10832)) ([accf839](vuejs/core@accf839)), closes [#10632](vuejs/core#10632) [#10827](vuejs/core#10827)

## [3.4.25](vuejs/core@v3.4.24...v3.4.25) (2024-04-24)

### Bug Fixes

* **defineModel:** align prod mode runtime type generation with defineProps ([4253a57](vuejs/core@4253a57)), closes [#10769](vuejs/core#10769)
* **runtime-core:** properly get keepAlive child ([#10772](vuejs/core#10772)) ([3724693](vuejs/core@3724693)), closes [#10771](vuejs/core#10771)
* **runtime-core:** use normal object as internal prototype for attrs and slots ([064e82f](vuejs/core@064e82f)), closes [/github.com/vuejs/core/commit/6df53d85a207986128159d88565e6e7045db2add#r141304923](https://github.com//github.com/vuejs/core/commit/6df53d85a207986128159d88565e6e7045db2add/issues/r141304923)

## [3.4.24](vuejs/core@v3.4.23...v3.4.24) (2024-04-22)

### Bug Fixes

* **compiler-core:** handle template ref bound via v-bind object on v-for ([#10706](vuejs/core#10706)) ([da7adef](vuejs/core@da7adef)), closes [#10696](vuejs/core#10696)
* **compiler-core:** properly parse await expressions in edge cases ([b92c25f](vuejs/core@b92c25f)), closes [#10754](vuejs/core#10754)
* **compiler-sfc:** handle readonly operator and ReadonlyArray/Map/Set types ([5cef52a](vuejs/core@5cef52a)), closes [#10726](vuejs/core#10726)
* **compiler-ssr:** fix hydration mismatch for conditional slot in transition ([f12c81e](vuejs/core@f12c81e)), closes [#10743](vuejs/core#10743)
* **compiler-ssr:** fix v-html SSR for nullish values ([1ff4076](vuejs/core@1ff4076)), closes [#10725](vuejs/core#10725)
* **deps:** update compiler ([#10760](vuejs/core#10760)) ([15df5c1](vuejs/core@15df5c1))
* **runtime-core:** fix edge case of KeepAlive inside Transition with slot children ([#10719](vuejs/core#10719)) ([e51ca61](vuejs/core@e51ca61)), closes [#10708](vuejs/core#10708)
* **runtime-core:** further fix slots _ctx check ([cde7f05](vuejs/core@cde7f05)), closes [#10724](vuejs/core#10724)
* **runtime-core:** props should be readonly via direct template access ([b93f264](vuejs/core@b93f264)), closes [#8216](vuejs/core#8216) [#10736](vuejs/core#10736)
* **transition:** transition is breaking/flickering when enter is canceled ([#10688](vuejs/core#10688)) ([65109a7](vuejs/core@65109a7))

## [3.4.23](vuejs/core@v3.4.22...v3.4.23) (2024-04-16)

### Bug Fixes

* **runtime-core:** fix regression for $attrs tracking in slots ([6930e60](vuejs/core@6930e60)), closes [#10710](vuejs/core#10710)
* **runtime-core:** use same internal object mechanism for slots ([6df53d8](vuejs/core@6df53d8)), closes [#10709](vuejs/core#10709)

## [3.4.22](vuejs/core@v3.4.21...v3.4.22) (2024-04-15)

### Bug Fixes

* **compat:** fix $options mutation + adjust private API initialization ([d58d133](vuejs/core@d58d133)), closes [#10626](vuejs/core#10626) [#10636](vuejs/core#10636)
* **compile-sfc:** analyze v-bind shorthand usage in template ([#10518](vuejs/core#10518)) ([e5919d4](vuejs/core@e5919d4)), closes [#10515](vuejs/core#10515)
* **compiler-core:** fix loc.source for end tags with whitespace before > ([16174da](vuejs/core@16174da)), closes [#10694](vuejs/core#10694) [#10695](vuejs/core#10695)
* **compiler-core:** fix v-bind shorthand for component :is ([04af950](vuejs/core@04af950)), closes [#10469](vuejs/core#10469) [#10471](vuejs/core#10471)
* **compiler-sfc:** :is() and :where() in compound selectors ([#10522](vuejs/core#10522)) ([660cadc](vuejs/core@660cadc)), closes [#10511](vuejs/core#10511)
* **compiler-sfc:** also search for `.tsx` when type import's extension is omitted  ([#10637](vuejs/core#10637)) ([34106bc](vuejs/core@34106bc)), closes [#10635](vuejs/core#10635)
* **compiler-sfc:** fix defineModel coercion for boolean + string union types ([#9603](vuejs/core#9603)) ([0cef65c](vuejs/core@0cef65c)), closes [#9587](vuejs/core#9587) [#10676](vuejs/core#10676)
* **compiler-sfc:** fix universal selector scope ([#10551](vuejs/core#10551)) ([54a6afa](vuejs/core@54a6afa)), closes [#10548](vuejs/core#10548)
* **compiler-sfc:** use options module name if options provide runtimeModuleName options ([#10457](vuejs/core#10457)) ([e76d743](vuejs/core@e76d743)), closes [#10454](vuejs/core#10454)
* **custom-element:** avoid setting attr to null if it is removed ([#9012](vuejs/core#9012)) ([b49306a](vuejs/core@b49306a)), closes [#9006](vuejs/core#9006) [#10324](vuejs/core#10324)
* **hydration:** properly handle optimized mode during hydrate node ([#10638](vuejs/core#10638)) ([2ec06fd](vuejs/core@2ec06fd)), closes [#10607](vuejs/core#10607)
* **reactivity:** computed should not be detected as true by isProxy ([#10401](vuejs/core#10401)) ([9da34d7](vuejs/core@9da34d7))
* **reactivity:** fix hasOwnProperty key coercion edge cases ([969c5fb](vuejs/core@969c5fb))
* **reactivity:** fix tracking when hasOwnProperty is called with non-string value ([c3c5dc9](vuejs/core@c3c5dc9)), closes [#10455](vuejs/core#10455) [#10464](vuejs/core#10464)
* **runtime-core:** fix errorHandler causes an infinite loop during execution ([#9575](vuejs/core#9575)) ([ab59bed](vuejs/core@ab59bed))
* **runtime-core:** handle invalid values in callWithAsyncErrorHandling ([53d15d3](vuejs/core@53d15d3))
* **runtime-core:** show hydration mismatch details for non-rectified mismatches too when __PROD_HYDRATION_MISMATCH_DETAILS__ is set ([#10599](vuejs/core#10599)) ([0dea7f9](vuejs/core@0dea7f9))
* **runtime-dom:** `v-model` string/number coercion for multiselect options ([#10576](vuejs/core#10576)) ([db374e5](vuejs/core@db374e5))
* **runtime-dom:** fix css v-bind for suspensed components ([#8523](vuejs/core#8523)) ([67722ba](vuejs/core@67722ba)), closes [#8520](vuejs/core#8520)
* **runtime-dom:** force update v-model number with leading 0 ([#10506](vuejs/core#10506)) ([15ffe8f](vuejs/core@15ffe8f)), closes [#10503](vuejs/core#10503) [#10615](vuejs/core#10615)
* **runtime-dom:** sanitize wrongly passed string value as event handler ([#8953](vuejs/core#8953)) ([7ccd453](vuejs/core@7ccd453)), closes [#8818](vuejs/core#8818)
* **ssr:** don't render v-if comments in TransitionGroup ([#6732](vuejs/core#6732)) ([5a96267](vuejs/core@5a96267)), closes [#6715](vuejs/core#6715)
* **Transition:** ensure the KeepAlive children unmount w/ out-in mode ([#10632](vuejs/core#10632)) ([fc99e4d](vuejs/core@fc99e4d)), closes [#10620](vuejs/core#10620)
* **TransitionGroup:** avoid set transition hooks for comment nodes and text nodes ([#9421](vuejs/core#9421)) ([140a768](vuejs/core@140a768)), closes [#4621](vuejs/core#4621) [#4622](vuejs/core#4622) [#5153](vuejs/core#5153) [#5168](vuejs/core#5168) [#7898](vuejs/core#7898) [#9067](vuejs/core#9067)
* **types:** avoid merging object union types when using withDefaults ([#10596](vuejs/core#10596)) ([37ba93c](vuejs/core@37ba93c)), closes [#10594](vuejs/core#10594)

### Performance Improvements

* add `__NO_SIDE_EFFECTS__` comments ([#9053](vuejs/core#9053)) ([d46df6b](vuejs/core@d46df6b))
* optimize component props/slots internal object checks ([6af733d](vuejs/core@6af733d))
* **ssr:** avoid calling markRaw on component instance proxy ([4bc9f39](vuejs/core@4bc9f39))
* **ssr:** optimize setup context creation for ssr in v8 ([ca84316](vuejs/core@ca84316))

## [3.4.21](vuejs/core@v3.4.20...v3.4.21) (2024-02-28)

### Bug Fixes

* **runtime-dom:** avoid unset option's value ([#10416](vuejs/core#10416)) ([b3f8b5a](vuejs/core@b3f8b5a)), closes [#10412](vuejs/core#10412) [#10396](vuejs/core#10396)
* **suspense:** ensure nested suspense patching if in fallback state ([#10417](vuejs/core#10417)) ([7c97778](vuejs/core@7c97778)), closes [#10415](vuejs/core#10415)
* **warning:** stringify args in warn handler ([#10414](vuejs/core#10414)) ([bc37258](vuejs/core@bc37258)), closes [#10409](vuejs/core#10409)

## [3.4.20](vuejs/core@v3.4.19...v3.4.20) (2024-02-26)

### Bug Fixes

* **parser:** should not treat uppercase components as special tags ([e0e0253](vuejs/core@e0e0253)), closes [#10395](vuejs/core#10395)
* **runtime-dom:** avoid always resetting nullish option value ([ff130c4](vuejs/core@ff130c4)), closes [#10396](vuejs/core#10396)
* **runtime-dom:** fix nested v-show priority regression ([364f890](vuejs/core@364f890)), closes [#10338](vuejs/core#10338)
* **runtime-dom:** v-bind style should clear previous css string value ([#10373](vuejs/core#10373)) ([e2d3235](vuejs/core@e2d3235)), closes [#10352](vuejs/core#10352)
* **suspense:** handle suspense switching with nested suspense  ([#10184](vuejs/core#10184)) ([0f3da05](vuejs/core@0f3da05)), closes [#10098](vuejs/core#10098)
* **types:** better typing for direct setup signature of defineComponent ([#10357](vuejs/core#10357)) ([eadce5b](vuejs/core@eadce5b)), closes [#8604](vuejs/core#8604) [#8855](vuejs/core#8855)

## [3.4.19](vuejs/core@v3.4.18...v3.4.19) (2024-02-13)

### Bug Fixes

* **deps:** pin lru-cache to avoid hashing error ([b8be990](vuejs/core@b8be990)), closes [#10300](vuejs/core#10300)
* **hydration:** fix css vars hydration mismatch false positive on non-root nodes ([995d2fd](vuejs/core@995d2fd)), closes [#10317](vuejs/core#10317) [#10325](vuejs/core#10325)
* **runtime-dom:** should not trigger transition when v-show value is falsy ([#10311](vuejs/core#10311)) ([e509639](vuejs/core@e509639))

### Features

> Note: this warning is categorized as a feature but released in a patch because it does not affect public APIs.

* **dx:** warn users when computed is self-triggering ([#10299](vuejs/core#10299)) ([f7ba97f](vuejs/core@f7ba97f))

### Performance Improvements

* **runtime:** improve `getType()` GC and speed ([#10327](vuejs/core#10327)) ([603a1e1](vuejs/core@603a1e1))
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@dsbalico @skirtles-code @yyx990803