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Migration guides

Migrate to Vitest plugin
Migrate from Vitest 3 to Vitest 4
Migrate from Miniflare 2's test environments
Migrate from unstable_dev

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Source: https://developers.cloudflare.com/workers/testing/vitest-integration/migration-guides/, from the Cloudflare Developer Docs. © Cloudflare, Inc., licensed under CC BY 4.0.

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