2026-10-31 * Winter preparations along the coast and in the woods

* upgrade of Proxmox VE v9.2.3--9.2.24 (cat /var/log/apt/history.log)
* upgrade of OPNsense v26.1.11--26.7.7--26.7.8 (fgrep -irn upgraded /var/log/pkg/ | grep opnsense | sort)  (important on importing fingerprint before upgrade to validate base package)
* Debian v12--13 upgrade
* Dovecot v2.2--2.4 upgrade (configuration syntax changes for MailDir, ssl_server_cert_file, ssl_server_key_file, ssl_server_dh_file)
* Icinga repos update for Debian v13