Our happy and functioning 2.2.12 server setup shows the following when switched over to 2.3.13. The odd thing is that we're using skiplist, not berkeley, for our dbs. If anyone has comments, I'd love to hear them. bash-2.05# cat /etc/imapd.conf configdirectory: /var/imap defaultpartition: default partition-default: /var/spool/imap imap_admins: root cyrus sasl_pwcheck_method: saslauthd sieveusehomedir: true autocreatequota: 200000 duplicate_db: skiplist tlscache_db: skiplist annotation_db: skiplist tls_cert_file: /var/imap/ca.crt tls_key_file: /var/imap/server.pem tls_ca_file: /var/imap/ca.crt bash-2.05# # /etc/init.d/imap stop Cyrus: Shutting dowm imapd instances Cyrus: Shutting down master process # /etc/init.d/imap start ... Jan 16 05:25:15 imapsrv ctl_cyrusdb[13271]: [ID 866726 local6.warning] DBERROR db4: Program version 4.3 doesn't match environment version Jan 16 05:25:15 imapsrv ctl_cyrusdb[13271]: [ID 866726 local6.warning] DBERROR db4: Skipping log file /var/imap/db/log.0000000224: historic log version 7 Jan 16 05:25:16 imapsrv ctl_cyrusdb[13271]: [ID 866726 local6.warning] DBERROR db4: /var/imap/db/log.0000000225: log file open failed: No such file or directory Jan 16 05:25:16 imapsrv ctl_cyrusdb[13271]: [ID 866726 local6.warning] DBERROR db4: PANIC: No such file or directory Jan 16 05:25:16 imapsrv ctl_cyrusdb[13272]: [ID 866726 local6.warning] DBERROR db4: PANIC: fatal region error detected; run recovery ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html