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Building codemods

Making your first codemod

Get started with building, publishing, and running your first codemod.

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Migrations

React v18 -> v19

Nuxt 3 -> 4

pnpm catalogs migration

MSW v1 -> v2

Radix Vue -> Reka UI (Radix Vue v2)

Fastify v3 -> v4

Meteor v2 -> v3

Valibot v0.31.0 upgrade

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Making Your First Codemod