# Migrations (/docs/migrations)



Each guide covers one major-version jump and the changes to expect when you take it.

* **[v7 to v8](/docs/migration-v7-to-v8).** The source classes get shorter names, one universal `envapt` import replaces the `workerd` and `browser` subpaths, and the portable file APIs warn instead of throwing by default.
* **[v6 to v7](/docs/migration-v6-to-v7).** The default decorators become TC39 Stage 3 accessors, and the legacy decorators move to `envapt/legacy`.
* **[v5 to v6](/docs/migration-v5-to-v6).** The positional decorator form is removed, and the test-environment behavior changes.
* **[v4 to v5](/docs/migration-v4-to-v5).** Renames and behavior shifts to watch when moving off v4.