In-memory: add change notes #96

Author: greenrobot-team

objectbox/CHANGELOG.md

@@ -40,6 +40,13 @@
   int get computedValue => TODO;
   set computedValue(int value) => TODO;
   ```
+* Use a file-less in-memory database, for example for testing, by setting `inMemoryIdentifier` when
+  creating a `Store` instead of a `directory`. See the `Store` documentation for details.
+  ```dart
+   final inMemoryStore =
+       Store(getObjectBoxModel(), inMemoryIdentifier: "test-db");
+  ```
+* Add `Store.removeDbFiles()` to conveniently delete database files or an in-memory database.
 
 ## 2.4.0 (2023-12-13)