Looking to upgrade my servers to 25.04 on a production cluster. Any Issues or should I stay in 24
Depends what packages you’re using. If you’re using the Incus that ships with Ubuntu and you’re happy with the maintenance (or lack thereof) that Canonical does on that package, then 25.04 should be fine.
If you’re using the Zabbly packages, only Ubuntu LTS releases are supported, so 25.04 would be a very bad idea as it’s completely untested and unsupported.