Incompatible database backend version

Infos:

• Used Zammad version: This is Zammad version 6.1.0-1701163867.5a81e629.bullseye
• Used Zammad installation type: (source, package, docker-compose, …) package
• Operating system: “Debian GNU/Linux 11 (bullseye)”
• Browser + version: /

Expected behavior:

• Updating use sudo apt-get update / sudo apt-get update should update Zammad to 6.2 but receiving database error we did not get with previous versions.

Actual behavior:

• When running sudo apt-get upgrade receiving Error: Incompatible database backend version (PostgreSQL 10+ required: 9.6.24 found)

Steps to reproduce the behavior:

• Updating to 6.2 using deb packages.

Extra info:

PostgreSQL 9.6 and 13 are installed.

Could not find a reference in the release notes of 6.2 that this required PostgreSQL 10+.

In the Zammad docs for configuring the database server I could not find the upgrade path from older PostgreSQL versions. Also could not find any related topics on the community site.

I restored a snapshot and we’re back running 6.1.

Thanks for any advice how to move to PostgreSQL 10+ and letting us run Zammad 6.2.