docs: Jest 29 blog post (#13103)

website/blog/2022-08-25-jest-29.md

@@ -0,0 +1,30 @@
+---
+title: 'Jest 29: Snapshot format changes'
+author: Simen Bekkhus
+authorURL: https://github.com/SimenB
+authorImageURL: https://avatars.githubusercontent.com/u/1404810
+---
+
+Jest 29 is here, just a few short months after Jest 28. As mentioned in the [Jest 28 blog post](/blog/2022/04/25/jest-28#future), this version contains just a couple of breaking changes, in order to make the upgrade as smooth as possible.
+
+<!--truncate-->
+
+The only breaking changes that should be noticable are:
+
+- Node versions 12 and 17 are dropped, both of which are EOL
+- The `snapshotFormat` property is changed to:
+
+  ```diff
+  + snapshotFormat: {
+  +   escapeString: false,
+  +   printBasicPrototype: false
+  + }
+  ```
+
+- `jest-environment-jsdom` has upgraded `jsdom` from v19 to v20
+
+There are certain changes to the types exposed by Jest, but probably (hopefully!) nothing that should impede the upgrade. Please see the [upgrade guide](/docs/upgrading-to-jest29) for more details.
+
+That's it for breaking changes! Hopefully this means the upgrade path from Jest 28 is smooth. Please see the [changelog](https://github.com/facebook/jest/blob/main/CHANGELOG.md#2900) for other changes.
+
+Thanks for reading, and happy Jesting! 🃏