Meanwhile, IBM said Db2 11.5 has a shared code base with three editions: Db2, Db2 Standard and Db2 Advanced. Db2 is a trial download for developers with a single application to prototype and test.

IBM released DB2 version 10 for z/OS in 2010. This release is for Linux, Unix and Windows systems, and has a different codebase and is maintained by different set of developers from the z/OS version.