chore(@effect/vitest): upgrade to Vitest 4 by nclsndr · Pull Request #6012 · Effect-TS/effect

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@nclsndr nclsndr commented

Jan 30, 2026

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Type

  • Refactor
  • Feature
  • Bug Fix
  • Optimization
  • Documentation Update
  • Dependency bump

Description

  • Bumps Vitest dependency from 3.24 to 4.0.18 (latest)

  • Remove deprecated TestCollectorOptions

  • Tried to figure out: @effect/docgen in package.json. I was confused by this: I couldn't pnpm i without changing it to npm version first. If this is probably out of this PR scope.

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changeset-bot bot commented

Jan 30, 2026

edited

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🦋 Changeset detected

Latest commit: 88dce56

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
Name Type
@effect/vitest Minor

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

@nclsndr

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nclsndr commented

Jan 30, 2026

edited

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duplicate of #5980
duplicate of #5791
The current PR #6012 tends to merge the vitest bump along with peerDep wider range. #5791 changes seem to make the CI passing checks.
I leave this PR open for comparison.

@nclsndr nclsndr changed the title chore(@effect/vitest): support Vitest 4 chore(@effect/vitest): upgrade to Vitest 4

Jan 30, 2026

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@mikearnaldi mikearnaldi Awaiting requested review from mikearnaldi mikearnaldi is a code owner

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Add vitest 4.x support to @effect/vitest

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