+- Added [multi-resource](https://firebase.google.com/docs/database/usage/sharding) support to the database SDK.
+
# v4.0.3
- [fixed] Fixed a regression in v4.0.2 that affected the storage location of the offline persistent cache. This caused v4.0.2 to not see data written with previous versions.
- [fixed] Fixed a crash in `FIRApp deleteApp` for apps that did not have active database instances.
Sebastian Schmidt