I've just pushed an initial build with a tag for PostgreSQL 15: pgautoupgrade/pgautoupgrade:15-alpine3.8-v1 The "-v1" text fragment on the end is a versio

I've just pushed an initial build with a tag for PostgreSQL 15: pgautoupgrade/pgautoupgrade:15-alpine3.8-v1 The "-v1" text fragment on the end is a version number because I'm still improving the scripting for the upgrade part. So that'll likely increment over time (-v2, -v3, -v4, etc) until it stabilises.