Can you install SQL Server 2019 side by side?
You can install SQL Server 2019 (15.x) Integration Services (SSIS) side-by-side with earlier versions of SSIS. This topic describes some limitations of side-by-side installations. To design and maintain packages that target SQL Server 2016, SQL Server 2014, or SQL Server 2012, use SQL Server Data Tools (SSDT) for Visual Studio 2015.
How to work with different versions of SQL Server?
Using SQL Server Side-By-Side with Previous Versions of SQL Server Existing instance Side by side support SQL Server 2019 SQL Server 2008 through SQL Server 2017 SQL Server 2017 SQL Server 2008 through SQL Server 2016 SQL Server 2016 SQL Server 2008 through SQL Server 2014
What happens if I install SQL Server 2016 cumulative update?
If you have installed this cumulative update on a server that also runs older versions of SQL Server, such as SQL Server 2014 or SQL Server 2012, VSS backups will fail against these older instances. If you are running SQL Server 2016 side-by-side with older versions of SQL Server, we recommend that you do not install this Cumulative Update.
Where can I find SQL Server 2016 update?
Only the most recent CU that was released for SQL Server 2016 SP2 is available at the Download Center. Each new CU contains all the fixes that were included togetrher with the previous CU for the installed version or service pack of SQL Server.
Can you install SQL Server 2012 and 2017 on the same computer?
For example, you cannot prepare a SQL Server 2017 instance side by side with a prepared instance of SQL Server 2012 (11.x). However, you can install multiple prepared instances of the same major version of SQL Server side by side on the same computer.
Can a SQL server failover cluster be installed side by side?
When a SQL Server Failover Cluster Instance is installed side by side with a standalone instance of the SQL Server Database Engine, take care to avoid TCP port number conflicts on the IP addresses. Conflicts usually occur when two instances of the Database Engine are both configured to use the default TCP port (1433).