> If I 'sudo apt-mark unhold network-manager', the Update Manager still > proposes me the version 1.10.6-2ubuntu1+8.0trisquel2 of > NetworkManager...
If you really did use "unhold", then this is the expected behavior. Change it to "hold" in order to prevent upgrades to network-manager. If you actually used "hold" and "unhold" is just a typo in the forum post, then maybe the graphical update manager does not observe the hold. Or, perhaps it will not actually upgrade network-manager if you follow through with the upgrade. When I run "apt list --upgradable" network-manager does appear, but when I run "sudo apt upgrade" I get The following packages have been kept back: network-manager so if the graphical installer uses "apt list --upgradable" or some equivalent to list the upgradable packages, then network-manager might appear even if it will not actually be upgraded.
signature.asc
Description: PGP signature