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# Cyrus IMAP 2.4.19 Release Notes

- Complete backport of the new (2.5 and later) IMAP IDLE implementation (thanks Thomas Jarosh). This fixes a bunch of bugs and race conditions that were inherent to the older implementation
- New option “imapidletimeout” overrides “timeout” specifically for connections in IDLE state
- OpenSSL 1.1.0 is now supported
- Fixed: imap ENABLED doesn’t print * ENABLED when nothing new enabled
- Fixed: mailbox lock management over rename (thanks Thomas Jarosh)
- Fixed: added overflow protection to urlfetch range checks
- Fixed: lmtpd can now deliver when mupdate server isn’t available (thanks Michael Menge)
- Fixed task 227: service processes no longer divide by zero when invoked with -T 0 argument (thanks Ian Batten and Jens Erat)
- Fixed task 229: ctl_cyrusdb now uses database paths from imapd.conf (thanks Simon Matter)
- Fixed bug #3862: mailbox database changes now rolled back on mupdate failure during rename (thanks Michael Menge)
- Fixed: XFER to 2.5 and later no longer downgrades index to oldest version
- Fixed: nonsensical “TEXT.MIME” section now handled as “HEADER”
- Fixed: added missing ‘auditlog: ‘ prefix to backend connections (thanks Wolfgang Breyha)
- Fixed: IMAP SEARCH crash on some platforms
- Fixed: memory leaks in IMAP SEARCH and IMAP APPEND
- Fixed Issue #1967: EXISTS count reported earlier if fetching past size of previous message set

Cyrus IMAP 2.4 Releases