Service packs keep a product current. They include hotfixes and fixes to issues that are reported through the Microsoft SQL Server

What is SQL Server SP1?

Microsoft SQL Server 2016 service packs are cumulative updates and upgrade all editions and service levels of SQL Server 2016 to SP1. … This service pack contains up to and including SQL Server 2016 RTM Cumulative Update 3 (CU3).

Is there a service pack for SQL Server 2019?

Here’s the release history for Microsoft SQL Server 2019. … Since SQL Server 2017, we only get Cumulative Updates and GDRs (security fixes), not Service Packs.