Hi @Westerhold, Linda (Information Technology)
SQL Server Management Studio (SSMS) is generally backwards compatible, meaning you can use a newer version of SSMS to connect to and manage older versions of SQL Server, including SQL Server 2008 and 2012. However, there may be some limitations or differences in functionality depending on the features of the specific SQL Server version you are managing
Upgrading SSMS should not directly impact your SQL Server instance or database, as SSMS is a client tool used for managing and administering SQL Server and Azure SQL Database
In terms of functionality, using the latest version of SSMS would provide you with the most up-to-date features and improvements for managing and querying your SQL Server instances and databases
Also sharing blog for reference - https://www.mssqltips.com/sqlservertutorial/9259/sql-server-management-studio-backwards-compatibility/
Thank you!