Aiven allows you to upgrade your PostgreSQL database's major version by forking your database service.

The web console's database fork dialog contains a selection box allowing you to choose (when you're still using 9.5.x) between forking a 9.5 or a 9.6 PostgreSQL database. Once forked the database automatically runs upgrade on itself at the end of restore providing you with a new PostgreSQL 9.6 database.

Did this answer your question?