Introduce vitest4 to vitest-pool-workers#28908
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MattieTK merged 8 commits intoproductionfrom Mar 18, 2026
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This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:
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src/content/changelog/workers/2026-03-11-vitest-pool-workers-vitest-4.mdx
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irvinebroque
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See questions about codemod
Also — opportunity for agent skill?
src/content/changelog/workers/2026-03-11-vitest-pool-workers-vitest-4.mdx
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penalosa
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...ontent/docs/workers/testing/vitest-integration/migration-guides/migrate-from-miniflare-2.mdx
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Co-authored-by: Pete Bacon Darwin <pete@bacondarwin.com>
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We're spinning out the changelog from this so we can land the docs change and continue on the changelog separately today. |
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threepointone
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should we have a guide for migrating from vitest 3.x?
src/content/docs/durable-objects/best-practices/rules-of-durable-objects.mdx
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Question here on vitest vs vitest-pool-workers: vitest 3 -> vitest 4 is something that the vitest guides cover themselves in more detail than we would. Otherwise we're talking about just the changes that are happening in this update which hopefully are quite transitory and something the changelog will cover. |
threepointone
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Mar 18, 2026
TownLake
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Mar 18, 2026
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Summary
This introduces a changelog and updates relevant documentation for vitest-pool-workers to reflect the changes made to update to vitest4. There are some features that are dependent on vitest 4.1 so we should wait for that release before merging this.
The changelog largely uses the documentation opencode persona, but has been manually reviewed and tweaked where it overstepped.
Documentation checklist