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wire 2026-10-10
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test-utils records emitted events once per mount again

By RepoJournal · Filed · About Vue.js · Composed from the cited sources · methodology

ValentinYoushkevich
1 person shipped this
ValentinYoushkevich @ValentinYoushkevich 2 cited

@vuejs/test-utils fixes a devtools-hook regression that multiplied every recorded emit by the number of prior mounts, and it ships as one change arriving twice on the wire today.

fix: record emitted events once when a devtools hook is installed vuejs/test-utils

by ValentinYoushkevich

When __VUE_DEVTOOLS_GLOBAL_HOOK__ is present, each mount was wrapping hook.emit one more time, so after N mounts a single $emit landed in emitted() N times, and replacing the hook after Vue's renderer was created left emitted() empty entirely. VTU now installs its hook the way it did before #2311 and forwards events to the current global hook.

fix: record emitted events once when a devtools hook is installed vuejs/test-utils

by Valentin Yushkevich

The commit making the same fix is the one you can pin to: e449126c5451742d094ebad7c686bf276467666b always installs the VTU hook and forwards to the current global hook rather than re-wrapping the existing one. If you stub __VUE_DEVTOOLS_GLOBAL_HOOK__ in tests and assert on emitted(), this is the version to be on.

$ ls vuejs/reviews/ # the step-back reads

the week in review eslint-plugin-vue migrates 26 rules to TypeScript the month in review create-vue 3.24.0 adds tsgo option, tighter templates
Full archive → Weekly reviews →

Quick answers

What shipped in Vue.js on October 10, 2026?
@vuejs/test-utils fixes a devtools-hook regression that multiplied every recorded emit by the number of prior mounts, and it ships as one change arriving twice on the wire today. In total, 1 commits and 1 pull requests landed.
Who contributed to Vue.js on October 10, 2026?
1 developer shipped this update, including ValentinYoushkevich.
What were the notable Vue.js updates?
fix: record emitted events once when a devtools hook is installed and fix: record emitted events once when a devtools hook is installed.
♥

$ log @vuejs --recent

language-tools trims its HTML data workflow 1 shipped Language-tools moves to trusted publishing, fixes hover and nav regressions 9 shipped language-tools drops a @ts-ignore for inline handler $event 7 shipped Volar smooths strict JS diagnostics, router fixes native hash scroll 13 shipped

$ log --all # elsewhere on the wire

Alignment & Post-training GSM8K scoring parses answers as exact decimals AI Red Teaming PyRIT closes a judge-spoofing hole, promptfoo accepts Langfuse v6

$ ls showcases/

Safety Evals AI Red Teaming Agent Security Interpretability Alignment & Post-training

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