This improvement updates the Memory Optimized Tempdb (hktempdb.dll) .dll version in SQL Server 2019 which contains the metadata bindings for various Tempdb memory-optimized system tables.
This improvement is included in the following cumulative update for SQL Server:
About cumulative updates for SQL Server:
Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server: