Cyrus IMAP 3.6.4 Release Notes
******************************

Download from GitHub:

* https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-
  imapd-3.6.4/cyrus-imapd-3.6.4.tar.gz

* https://github.com/cyrusimap/cyrus-imapd/releases/download/cyrus-
  imapd-3.6.4/cyrus-imapd-3.6.4.tar.gz.sig


Changes since 3.6.3
===================


Build changes
-------------

* Fixed: Cassandane tests now pass on Debian Bookworm

* Fixed Issue #3974: cunit crash when built with newer compilers

* PCRE2 is now supported and detected with pkg-config.  If both PCRE
  and PCRE2 are available, the older PCRE will be preferred.  To force
  use of PCRE2 in this situation, run configure with the "--disable-
  pcre" option.  Please note that on Debian-based systems, PCRE (the
  old one, no longer maintained) is called "pcre3".  Yes, this is
  confusing.

* Fixed Issue #4770: build failure when ssl.h unavailable (thanks
  Дилян Палаузов)


Bug fixes
---------

* Fixed: sieve tester jmapquery

* Fixed Issue #4570: ctl_mboxlist(8) crash

* Fixed: squat db reindexes are no longer always incremental

* Fixed: squat db corruption from unintentional indexing of fields
  intended to be skipped.  Squat search databases may benefit from a
  full (non-incremental) reindex

* Fixed Issue #4660: squat db out of bounds access in incremental
  reindex docID map

* Fixed Issue #4692: squat db searches now handle unindexed messages
  correctly again (thanks Gabriele Bulfon)

* Fixed Issue #4710: crash on copy/append fail in mailbox with custom
  user flags

* Fixed: GETMETADATA no longer shows internal DAV mailboxes (unless
  "imapmagicplus" is enabled and the user is authenticated as
  "username+dav@domain")

* Fixed Issue #4717: pop3d now avoids splitting "".\r\n"" across
  packet boundaries, which can confuse some clients

* Fixed Issue #4663: lmtpd(8) "processimip" sieve action now correctly
  strips known timezones from iCalendar objects (thanks Дилян
  Палаузов)

* Fixed Issue #4756: potential uninitialized access in
  extract_convdata

* Fixed Issue #4771: potential invalid read in
  message_parse_received_date (thanks Дилян Палаузов)

* Fixed Issue #4424: DAV requests now respond with 507 rather than 500
  when mailbox_maxmessages limits exceeded

* Fixed Issue #4804: mailbox_maxmessages limits now applied correctly

* Fixed Issue #4820: PREVIEW message attribute must be
  qstring/literal, not an atom

* Fixed Issue #4828: the default addressbook can no longer be deleted


Other changes
-------------

* Fixed Issue #4790: some man pages were missing from distribution
  tarballs (thanks Jakob Gahde)