Matthias Leisi <matthias@xxxxxxxxx> writes: >> This [HINT] says that YOU are supposed to run the ALTER EXTENSION command: > I did run that, but it seemed to have no effect. How should the update work, what should it do? What this suggests is that you have a repmgr executable (.so file) that is newer than the extension's SQL files (.../share/extension/repmgr.control etc). You need to straighten out that version mismatch. regards, tom lane