In SQL Server 2019, you have the following improvements for peer-to-peer (P2P) replication:
Last Writer Wins (LWW): A new conflict detection and resolution policy for P2P replication.
Support for P2P database in Availability Group.
This improvement is included in the following cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:
For more information, see Replication Enhancements in the SQL Server 2019 CU13 Release.
Learn about the terminology that Microsoft uses to describe software updates.