[horde] H6 Framework and Active Sync

[Horst B Simon]

Hi.

OS: Debian 12.9 (Bookworm)
PHP 8.3

I see following PHP Errors for active sync in the logs, is this anything to worry about? 

2025-03-13T07:41:32+11:00 DEBUG: HORDE PHP ERROR: Horde_ActiveSync_Folder_Imap implements the Serializable interface, which is deprecated. Implement __serialize() and __unserialize() instead (or in addition, if support for old PHP versions is necessary) [pid 22100 on line 23 of "/var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/Folder/Imap.php"]
2025-03-13T07:41:32+11:00 DEBUG: HORDE  1. Horde_Rpc_ActiveSync->getResponse() /var/www/horde/vendor/horde/horde/rpc.php:163
 2. Horde_ActiveSync->handleRequest() /var/www/horde/vendor/horde/rpc/lib/Horde/Rpc/ActiveSync.php:144
 3. Horde_ActiveSync_Request_Base->handle() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync.php:833
 4. Horde_ActiveSync_Request_Ping->_handle() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/Request/Base.php:250
 5. Horde_ActiveSync_Collections->pollForChanges() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/Request/Ping.php:208
 6. Horde_ActiveSync_Collections->initCollectionState() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/Collections.php:1176
 7. Horde_ActiveSync_State_Base->loadState() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/Collections.php:1092
 8. Horde_ActiveSync_State_Sql->_loadState() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/State/Base.php:890
 9. Horde_ActiveSync_State_Sql->_loadStateFromResults() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/State/Sql.php:239
10. unserialize() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/State/Sql.php:265
11. Composer\Autoload\ClassLoader->loadClass()
12. Composer\Autoload\{closure}() /var/www/horde/vendor/composer/ClassLoader.php:433
13. include() /var/www/horde/vendor/composer/ClassLoader.php:582
14. Horde_ErrorHandler::errorHandler() /var/www/horde/vendor/horde/activesync/lib/Horde/ActiveSync/Folder/Imap.php:23

Thank you
Horst