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fix(runtime-core): queue mounted hooks added during mount#14349

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edison1105 merged 2 commits intovuejs:minorfrom
jackma9604:fix/mounted-hook-reference-missing
Jan 23, 2026
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fix(runtime-core): queue mounted hooks added during mount#14349
edison1105 merged 2 commits intovuejs:minorfrom
jackma9604:fix/mounted-hook-reference-missing

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@jackma9604 jackma9604 commented Jan 22, 2026 •
edited by edison1105
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Ensure mounted hooks registered during render (e.g., slots calling onMounted) are still scheduled by reading instance.m after patch instead of relying on a destructured snapshot.

Problem Description

The mounted hook is lost after the virtual dom mounts the vapor slot

Root Cause

After the mounted hook is deconstructed, the reference is lost due to modification

Validation

  1. Enter text in the input box.
  2. Click the "Change" button

Under normal circumstances, the text should be brought out.

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github-actions bot commented Jan 22, 2026

Size Report

Bundles

File Size Gzip Brotli
compiler-dom.global.prod.js 85.5 kB 30 kB 26.4 kB
runtime-dom.global.prod.js 108 kB 40.7 kB (-5 B) 36.6 kB (+59 B)
vue.global.prod.js 167 kB 60.8 kB (-5 B) 54.1 kB (+76 B)

Usages

Name Size Gzip Brotli
createApp (CAPI only) 48.3 kB 18.9 kB (-3 B) 17.3 kB (-12 B)
createApp 57.3 kB 22 kB (-2 B) 20.1 kB (-6 B)
createApp + vaporInteropPlugin 78.5 kB 29 kB (-6 B) 26.4 kB (-2 B)
createVaporApp 27.9 kB 10.7 kB 9.83 kB
createSSRApp 61.6 kB 23.8 kB (-7 B) 21.7 kB (-17 B)
defineCustomElement 63.3 kB 23.9 kB (+1 B) 21.8 kB (-3 B)
overall 72.1 kB 27.3 kB (+2 B) 24.9 kB (+19 B)

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pkg-pr-new bot commented Jan 22, 2026 •
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commit: 0643d02

@edison1105 edison1105 changed the title fix(runtime-code): mounted hook reference missing fix(runtime-core): queue mounted hooks added during mount Jan 23, 2026
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edison1105 commented Jan 23, 2026

/ecosystem-ci run

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vue-bot commented Jan 23, 2026

📝 Ran ecosystem CI: Open

suite result latest scheduled
radix-vue ✅ success ✅ success
primevue ✅ success ❌ failure
pinia ✅ success ✅ success
quasar ✅ success ✅ success
language-tools ✅ success ✅ success
vueuse ❌ failure ❌ failure
vue-macros ✅ success ❌ failure
router ❌ failure ❌ failure
vuetify ❌ failure ❌ failure
nuxt ❌ failure ✅ success
vite-plugin-vue ✅ success ✅ success
vue-i18n ❌ failure ❌ failure
vue-simple-compiler ✅ success ✅ success
test-utils ❌ failure ✅ success
vitepress ✅ success ✅ success
vant ✅ success ✅ success

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edison1105 commented Jan 23, 2026

Thank you for your contribution

@edison1105 edison1105 added version: minor interop vdom / vapor interop labels Jan 23, 2026
@edison1105 edison1105 merged commit d3b1de3 into vuejs:minor Jan 23, 2026
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@jackma9604 jackma9604 deleted the fix/mounted-hook-reference-missing branch January 23, 2026 01:59
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