We would like to announce the recent change made to the Announcing the Modern Servicing Model for SQL Server – Microsoft Tech Community that applies for SQL Server on Linux/Container releases only.
We are moving forward with a Linux apt mainstream servicing lifecycle for SQL Server 2017 and later:
For SQL Server 2017 and above we will only have Cumulative Update (CU) based General Distribution Releases (GDRs), thus simplifying it for users to download the required updates through one single branch which is the CU (Cumulative Update) branch. Users need to subscribe and use only one single repository,