• Debian 11 is approaching its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.80 will be the last release to support it.
    If you are running Plesk Obsidian on Debian 11, we recommend you upgrade those servers to Debian 12 using our dist-upgrade tool.
  • We plan to deprecate and remove the support for XML RPC protocol versions earlier than 1.6.9.1 in Plesk Obsidian 18.0.82. We strongly recommend that you update all existing integrations using earlier versions of the XML RPC protocol to comply with the version 1.6.9.1 specification.

Plesk 11.5

To expand on what Abdi said, Plesk 11.5 is fine for production use and has been for some months now.
Indeed, personally I would not use any other version of Plesk when commissioning a new server.

But with something as complex as Plesk, what Abdi is saying is that you might still encounter problems - it is impossible to guarantee a trouble-free upgrade/restore/migration, and as with any control panel there are still going to be bugs. You might never encounter them or they may cause you a problem. But so far I've not seen anything significant. I'm actually quite keen to upgrade my 10.4.4 systems and will probably do so soon.
 
Back
Top