• Debian 11 has reached its end-of-life (vendor EOL date - August 31, 2026). Plesk Obsidian 18.0.81 is 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.

Update to 12.x problem

GjemajlK

New Pleskian
Update from Web Panel 11.5.30 to 12
Web Panel, this message will appear:

###
Parallels Panel pre-upgrade check...
Failed loading /usr/lib/x86_64-linux-gnu/php/modules/sw-engine/ioncube_loader_lin_5.4.so: /usr/lib/x86_64-linux-gnu/php/modules/sw-engine/ioncube_loader_lin_5.4.so: undefined symbol: execute
dpkg-query: no packages found matching psa-atmail
dpkg-query: no packages found matching plesk-modsecurity-crs
WARNING: You have already installed libapache2-modsecurity package which is not from Panel distribution.
You should deinstall package libapache2-modsecurity before component 'modsecurity' installation, otherwise your apache web-server will be broken. Check KB article for details http://kb.parallels.com/122324
WARNING: There are custom web server configuration templates at /opt/psa/admin/conf/templates/custom. These custom templates might be incompatible with a new Plesk version, and this might lead to failure to generate web server configuration files.Please check http://kb.parallels.com/118192 for details.
###

modsecurity is not installed.
custom templates have previously deleted.
ioncube_loader_lin_5.4.so has deleted plesk itself.
(sorry my bad english)

message after "apt-get dist-upgrad":
The following packages have unmet dependencies:
plesk-l10n : Depends: plesk-core (>= 12.0.18) but 11.5.30-debian7.0.build115130819.13 is installed
plesk-mail-pc-driver : Depends: psa-mail-driver-common (>= 12.0.18) but 11.5.30-debian7.0.build115130819.13 is installed
plesk-management-node : Depends: plesk-core (>= 12.0.18) but 11.5.30-debian7.0.build115130819.13 is installed
psa-courier-imap : Depends: plesk-courier-imap-driver but it is not installed
psa-mail-driver-common : Depends: psa-11.5.30 but it is not installable
psa-migration-manager : Depends: plesk-core (>= 12.0.18) but 11.5.30-debian7.0.build115130819.13 is installed
psa-spamassassin : Depends: psa-mail-driver-common (>= 12.0.18) but 11.5.30-debian7.0.build115130819.13 is installed
psa-updates : Depends: plesk-core (>= 12.0.18) but 11.5.30-debian7.0.build115130819.13 is installed

here can I execute Page "apt-get -f install"?
 
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