On Mon, 17 May 2021 15:22:47 -0400 Leo Famulari wrote: > Currently we have packages for PostgreSQL 9.6, 10, 11, and 13. > > Versions 9.6 and 11 are not used in Guix. So I propose that we remove > them. These versions are still supported [0], 9.6 until 2021-11-11. Although they have no dependencies, people could still use them. I would keep them until EOL. Björn [0] https://en.wikipedia.org/wiki/PostgreSQL#Release_history