The Noble archive is not in a consistent state at the moment, because of many package rebuilds taking place. Things are getting back to normal, and indeed on my Noble system:
$ apt install strongswan --simulate Reading package lists... Done Building dependency tree... Done Reading state information... Done The following additional packages will be installed: libcharon-extauth-plugins libstrongswan libstrongswan-standard-plugins strongswan-charon strongswan-libcharon strongswan-starter Suggested packages: libstrongswan-extra-plugins libcharon-extra-plugins The following NEW packages will be installed: libcharon-extauth-plugins libstrongswan libstrongswan-standard-plugins strongswan strongswan-charon strongswan-libcharon strongswan-starter 0 upgraded, 7 newly installed, 0 to remove and 70 not upgraded. Inst libstrongswan (5.9.13-2ubuntu4 Ubuntu:24.04/noble-proposed [amd64]) Inst strongswan-libcharon (5.9.13-2ubuntu4 Ubuntu:24.04/noble-proposed [amd64]) Inst strongswan-charon (5.9.13-2ubuntu4 Ubuntu:24.04/noble-proposed [amd64]) Inst strongswan-starter (5.9.13-2ubuntu4 Ubuntu:24.04/noble-proposed [amd64]) Inst libcharon-extauth-plugins (5.9.13-2ubuntu4 Ubuntu:24.04/noble-proposed [amd64]) Inst libstrongswan-standard-plugins (5.9.13-2ubuntu4 Ubuntu:24.04/noble-proposed [amd64]) Inst strongswan (5.9.13-2ubuntu3 Ubuntu:24.04/noble [all]) ** Changed in: strongswan (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2060158 Title: Strong swan library mismatch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/strongswan/+bug/2060158/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs