This is primarily for other who may also run into this issue. I have just sent the following e-mail to the davical-general@lists.sourceforge.net mailing list: Hello I am running on FreeBSD 14.4-RELEASE / amd64 with PHP 8.4. The FreeBSD Port was recently updated from 1.1.12 to 1.1.13 and after installing it on my server users were not able to login any more and got a message about wrong username / password. Admin Login was still working, so I saw the message about pending database update and did it with: cd /usr/local/share/davical/dba/ ./update-davical-database But still regular users were not able to login and I found this messages in my Apache httpd error log: [Sun Jun 07 17:19:12.316643 2026] [php:notice] [pid 32935] [client 2001:xxxx:xxxx:xxxx::4:56201] DAViCal setup.php: Informational: /usr/local/www/davical/config/config.php(655): [2] include(drivers_imap_pam.php): Failed to open stream: No such file or directory, referer: https://davical.example.com/upgrade.php [Sun Jun 07 17:19:12.316766 2026] [php:notice] [pid 32935] [client 2001:xxxx:xxxx:xxxx::4:56201] DAViCal setup.php: Informational: /usr/local/www/davical/config/config.php(655): [2] include(): Failed opening 'drivers_imap_pam.php' for inclusion (include_path='../inc:/usr/local/share/awl/inc:.:/usr/local/share/pear'), referer: https://davical.example.com/upgrade.php I have restored the now missing /usr/local/www/davical/inc/drivers_imap_pam.php from my backup and everything is running fine again. As I am using the IMAP Authentication as described at https://wiki.davical.org/index.php?title=Configuration/hooks/Authentication/IMAP I was searching what is going on and how the path forward would be. I did find the issue #324 "Migrate away from PHP's imap extension?" https://gitlab.com/davical-project/davical/-/work_items/324 And then I did remember that with the upgrade to PHP 8.4 I already had to replace the then removed php-imap port with mail/pecl-imap. According to https://www.php.net/imap it was removed in PHP 8.4.0, but there is https://pecl.php.net/package/imap available, so this all still works. Is there a better solution then re-adding the drivers_imap_pam.php and mention that from PHP 8.4 on PECL IMAP is needed? Would it be helpful if I add a comment the closed issue #324, or should I create a new issue? Best regards, Fabian