• 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.

Upgrading components didn't work

Plesk doesn't ship client's PHP and MySQL, it only downloads it from original OS vendor repo and it is quite likely it may be outdated there (especially for older OS).
Try to use alternative repositories, from Atomic, for example.
 
Hi IgorG,
thank you for your answer.
I haven't got into Plesk and all its functionalities yet, so I thought it was Plesk duty to update all components it itself proposes for an update. Can you please explain how can I have PHP and MySQL update? Do I have to do it outside Plesk?
Thank you
 
Got it! I'm not a Linux expert, so probably the answer is open a SSH session and then update PHP and MySQL manually using commands' shell, isn't it?
 
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