v5.2.0

• Allow analyzer versions 9 and 10. #780
• Update ObjectBox database for Flutter Linux/Windows, Dart Native apps to 5.1.0-2026-01-19.
• Update ObjectBox database for Flutter Android apps to 5.1.0-2026-01-19.
  If your project is using Admin, make sure to update to io.objectbox:objectbox-android-objectbrowser:5.1.0 in android/app/build.gradle.
• Update ObjectBox database for Flutter iOS/macOS apps to 5.1.1-dev-2026-01-21.
  For existing projects, run pod repo update and pod update ObjectBox in the ios or macos directories.

Sync

• New Sync protocol V8: using new clients also requires a server update
• SyncClient: add a constructor, deprecate Sync.client and related helper methods.
• SyncClient: add constructor parameters to provide custom certificates and configuration flags.
  • Remove-operations with object content for Sync filters (optional setting; sync flag)
  • Add DebugLogTxLogs sync flag to log TX log processing on the client side
  • Add SkipInvalidTxOps sync flag to skip invalid operations in a TX log on the client side; errors
    are logged and the TX is only partially applied.
• Remove superfluous sync listener triggers when sync filters "report updates" (SKIP_TX)
• Sync clients compress earlier: reduces disk storage for outgoing data
• Reworked certificates for Apple platforms
• Removed support for older Sync protocol versions before 2024-09; protocol V5+ is now required.