I thought of another trick. Haven"t tried it, should work though. Where applicable put tenants on multi schema. If the tables are now very small in comparison t

I thought of another trick. Haven"t tried it, should work though. Where applicable put tenants on multi schema. If the tables are now very small in comparison then a write lock is not that important. Simply migrate. Do a blue green deployment between code versions. Done. One downside is the downgrade part. If you still want it you have to do it as in the article.