Updated changelog after release

Author: Michael Wilkerson-Barker

CHANGELOG.md

@@ -1,3 +1,26 @@
+# NEXT RELEASE
+
+### Enhancements
+* <New feature description> (PR [#????](https://github.com/realm/realm-core/pull/????))
+* None.
+
+### Fixed
+* <How do the end-user experience this issue? what was the impact?> ([#????](https://github.com/realm/realm-core/issues/????), since v?.?.?)
+* None.
+
+### Breaking changes
+* None.
+
+### Compatibility
+* Fileformat: Generates files with format v24. Reads and automatically upgrade from fileformat v10. If you want to upgrade from an earlier file format version you will have to use RealmCore v13.x.y or earlier.
+
+-----------
+
+### Internals
+* Follow on to ([PR #7300](https://github.com/realm/realm-core/pull/7300)) to allow SDKs to construct a fake user for testing SyncManager::get_user -> App::create_fake_user_for_testing ([PR #7632](https://github.com/realm/realm-core/pull/7632))
+
+----------------------------------------------
+
 # 14.6.0 Release notes
 
 ### Enhancements
@@ -32,9 +55,7 @@
   - SyncUser::session_for_on_disk_path() -> SyncManager::get_existing_session()
   - SyncUser::all_sessions() -> SyncManager::get_all_sessions_for(User&)
   - SyncManager::immediately_run_file_actions() -> App::immediately_run_file_actions()
-  - realm_sync_user_subscription_token -> realm_app_user_subscription_token
-  - SyncManager::get_user -> App::create_fake_user_for_testing
-  ([PR #7300](https://github.com/realm/realm-core/pull/7300)).
+  - realm_sync_user_subscription_token -> realm_app_user_subscription_token ([PR #7300](https://github.com/realm/realm-core/pull/7300)).
 * The `ClientAppDeallocated` error code no longer exists as this error code can no longer occur. ([PR #7300](https://github.com/realm/realm-core/pull/7300)).
 * Some fields have moved from SyncClientConfig to AppConfig. AppConfig now has a SyncClientConfig field rather than it being passed separately to App::get_app(). ([PR #7300](https://github.com/realm/realm-core/pull/7300)).
 * Sync user management has been removed from SyncManager. This functionality was already additionally available on App. ([PR #7300](https://github.com/realm/realm-core/pull/7300)).