#### New migrations again ([#3220](https://github.com/tldraw/tldraw/pull/3220))
#### BREAKING CHANGES
- The `Migrations` type is now called `LegacyMigrations`.
- The serialized schema format (e.g. returned by `StoreSchema.serialize()` and `Store.getSnapshot()`) has changed. You don't need to do anything about it unless you were reading data directly from the schema for some reason. In which case it'd be best to avoid that in the future! We have no plans to change the schema format again (this time was traumatic enough) but you never know.
-`compareRecordVersions` and the `RecordVersion` type have both disappeared. There is no replacement. These were public by mistake anyway, so hopefully nobody had been using it.
-`compareSchemas` is gone. Comparing the schemas directly is no longer really possible since we introduced some fuzziness. The best thing to do now to check compatibility is to call `schema.getMigraitonsSince(prevSchema)` and it will return an error if the schemas are not compatible, an empty array if there are no migrations to apply since the prev schema, and a nonempty array otherwise.
Generally speaking, the best way to check schema compatibility now is to call `store.schema.getMigrationsSince(persistedSchema)`. This will throw an error if there is no upgrade path from the `persistedSchema` to the current version.
-`defineMigrations` has been deprecated and will be removed in a future release. For upgrade instructions see https://tldraw.dev/docs/persistence#Updating-legacy-shape-migrations-defineMigrations
-`migrate` has been removed. Nobody should have been using this but if you were you'll need to find an alternative. For migrating tldraw data, you should stick to using `schema.migrateStoreSnapshot` and, if you are building a nuanced sync engine that supports some amount of backwards compatibility, also feel free to use `schema.migratePersistedRecord`.
- the `Migration` type has changed. If you need the old one for some reason it has been renamed to `LegacyMigration`. It will be removed in a future release.
- the `Migrations` type has been renamed to `LegacyMigrations` and will be removed in a future release.
- the `SerializedSchema` type has been augmented. If you need the old version specifically you can use `SerializedSchemaV1`
#### Perf: (slightly) faster min dist checks ([#3401](https://github.com/tldraw/tldraw/pull/3401))
- New migrations again [#3220](https://github.com/tldraw/tldraw/pull/3220) ([@ds300](https://github.com/ds300) [@steveruizok](https://github.com/steveruizok))
- use native structuredClone on node, cloudflare workers, and in tests [#3166](https://github.com/tldraw/tldraw/pull/3166) ([@si14](https://github.com/si14))
#### 📖 Documentation changes
- Fix typo in Store.ts [#3385](https://github.com/tldraw/tldraw/pull/3385) ([@OrionReed](https://github.com/OrionReed))
#### Authors: 6
- Dan Groshev ([@si14](https://github.com/si14))
- David Sheldrick ([@ds300](https://github.com/ds300))
#### Faster validations + record reference stability at the same time ([#2848](https://github.com/tldraw/tldraw/pull/2848))
- Add a brief release note for your PR here.
---
#### 🐛 Bug Fix
- Faster validations + record reference stability at the same time [#2848](https://github.com/tldraw/tldraw/pull/2848) ([@ds300](https://github.com/ds300))
- Update the project to Node 20 [#2691](https://github.com/tldraw/tldraw/pull/2691) ([@si14](https://github.com/si14))
- make CI check for yarn install warnings and fix the peer deps ones we have [#2683](https://github.com/tldraw/tldraw/pull/2683) ([@si14](https://github.com/si14))
- dev: add test-dev command for easier testing of packages [#2627](https://github.com/tldraw/tldraw/pull/2627) ([@mimecuvalo](https://github.com/mimecuvalo))
- unbrivate, dot com in [#2475](https://github.com/tldraw/tldraw/pull/2475) ([@steveruizok](https://github.com/steveruizok) [@si14](https://github.com/si14) [@SomeHats](https://github.com/SomeHats))
- Make sure all types and build stuff get run in CI [#1548](https://github.com/tldraw/tldraw-lite/pull/1548) ([@SomeHats](https://github.com/SomeHats))
- add pre-commit api report generation [#1517](https://github.com/tldraw/tldraw-lite/pull/1517) ([@SomeHats](https://github.com/SomeHats))
- [chore] restore api extractor [#1500](https://github.com/tldraw/tldraw-lite/pull/1500) ([@steveruizok](https://github.com/steveruizok))
- [fix] use polyfill for `structuredClone` [#1408](https://github.com/tldraw/tldraw-lite/pull/1408) ([@TodePond](https://github.com/TodePond) [@steveruizok](https://github.com/steveruizok))
- Run all the tests. Fix linting for tests. [#1389](https://github.com/tldraw/tldraw-lite/pull/1389) ([@MitjaBezensek](https://github.com/MitjaBezensek))
#### Authors: 5
- alex ([@SomeHats](https://github.com/SomeHats))
- David Sheldrick ([@ds300](https://github.com/ds300))
- Lu[ke] Wilson ([@TodePond](https://github.com/TodePond))
