Hello, I have a (test) database that has been upgraded several times from 9.4 to 13 using pg_upgrade. I have noticed that when I look at pg_available_extensions many extensions are listed with multiple versions even though only the latest one is actually used. I did "alter extension ... update" for those that are installed in the database after running pg_upgrade. But the multiple versions even show up for extensions that are not installed. After I did a dump & restore of the database in question, this list was cleaned and only the most recent version of the extensions were shown. This is not a big deal, but I am curious neverthless: Did I have another choice to cleanup that apart from doing the dump & restore? Running "drop extension" obviously doesn't work for those that aren't installed. Thomas
