https://ubuntuupdates.org/package/postgresql/bionic-pgdg/main/base/postgresql-9.4-debversion
UbuntuUpdates - Package "postgresql-9.4-debversion" (bionic-pgdg )
packagepostgresqldebversionbionic
https://pigsty.io/ext/e/debversion/
debversion | PIGSTY
May 1, 2026 - Debian version number data type
debversionpigsty