Cyrus IMAP 2.3.10 Release Notes¶
Changes to the Cyrus IMAP Server since 2.3.9
Added support for "delayed" delete, in which mailboxes are renamed to a special admin-only "deleted" hierarchy at the time of the DELETE (hiding them from the client), rather than immediately removing them from the filesystem. This allows messages/mailboxes to be recovered by the admin in case of user error. The mailboxes and messages can be removed at a later time by cyr_expire. The new delete_mode and deletedprefix options in imapd.conf controls whether deletes are "immediate" or "delayed" and the mailbox hierarchy for "delayed" deletes. -- courtesy of David Carter and FastMail.fm.
Fixed the special case of RENAMEing an Inbox, so that it doesn't keep the same mailbox uniqueid, thus allowing it to replicate properly (seen state is still preserved).
Disabled Nagle's algorithm in sync_client and sync_server to increase the throughput of the replication protocol. -- courtesy of Wes Craig.
Added support for a shared Seen flag on messages (must be enabled on a per-mailbox basis with the /vendor/cmu/cyrus-imapd/sharedseen mailbox annotation.
Added -g and -G options to reconstruct -- courtesy of David Carter.
Added SETUIDVALIDITY command to the replication protocol -- courtesy of David Carter.
Finally fixed (again?) alignment issues on 64-bit SPARC.
Changed message GUIDs used by replication to be the SHA1 hash of the messages -- based on work of David Carter and Fastmail.fm.
Improve the performance of commands that operate on sequence-sets. The sequence-set is now parsed only once, and the commands operate on a sorted list of seq-ranges.
Added new cyr_synclog utility for adding events to the replication log -- courtesy of Fastmail.fm.
Added support for PCRE library -- courtesy of Fastmail.fm.
Added support for disabling duplicate delivery suppression on a per-folder basis with the /vendor/cmu/cyrus-imapd/duplicatedeliver mailbox annotation -- courtesy of Fastmail.fm.
Fixed miscellaneous bugs and build issues.