Changes to the Cyrus IMAP Server since 2.4.9

      * fixed handling of unparsable emails during append (which would
        cause invalid cyrus.index records otherwise) 
      * quota: fix a pile of bugs. #1801, virtdomain support; #2728, slow
        user delete; #3178, "file name too long" with big mailbox names;
        #3179, quota -f doubles usage. 
      * Bug #3043 - parse multiple groups in headers correctly 
      * Bug #3158 - lmtp backend connection timeout 
      * Bug #3223 - limit MIME parsing depth to avoid stack overflows 
      * Bug #3273 - add SORT=DISPLAY support (but note: still questions
        about correctness of unicode sorting) 
      * Bug #3504 - convert all sieve scripts to \r\n line endings on
        upload 
      * Bug #3402 - options to munge 8bit characters in headers during lmtp
        delivery to avoid backscatter 
      * sync_client: fix broken keepalive TCP options (I doubt anyone ever
        tried to use it) 
      * Bug #3482 - add "-o" option to ipurge to only purge messages with
        \Deleted flag set 

Changes to the Cyrus IMAP Server since 2.4.8

      * fixed crashes in seen handling 
      * Bug #3453 - fixed LSUB replication 
      * Bug #3442 - allow disabling PCRE if it's buggy at your site 
      * Bug #3443 - LSUB response fixes 
      * Bug #3448 - XFER error handling (murder) 
      * Bug #3437 - fixed regression: quotaroot wasn't being updated on
        rename 
      * Bug #3456 - fixed crash on rename user.foo user.foo without
        partition change 
      * config update: database paths for most databases are now
        configurable in imapd.conf 
      * Bug #3303 - fixed index lock breaking on XFER (thanks Julien
        Coloos) 
      * Bug #3457 - fixed ESEARCH parsing (was breaking iPhones) 
      * Bug #3188 - fixed XFER with unlimited quota (thanks again Julien
        Coloos) 
      * Misc other quota fixes (there are still known bugs with the quota
        system) 
      * Bug #3169 - fixed GETQUOTAROOT for domain quotaroots 
      * Bug #3465 - fixed compilation with Perl 5.14 (thanks
        hsk@imb-jena.de, and also thanks to Ondrej Sury who reported it
        separately) 
      * Bug #3464 - fix for sendmail exec failure. This was a nasty one,
