text: Cyrus IMAP 2.0.x Release Notes¶
  Changes to the Cyrus IMAP Server since 2.0.16
  - migrated to SASLv2 (Rob Siemborski)
  - altnamespace: it is now possible to display user mailboxes as siblings to the INBOX at the top-level (Ken Murchison)
  - unixhierarchysep: it is now possible possible to use slash as the hierarchy seperator, instead of a period. (Ken Murchison, inspired by David Fuchs, dfuchs@uniserve.com)
  - SSL/TLS session caching (Ken Murchison)
  - support for IMAP CHILDREN & LISTEXT extensions (Ken Murchison, work in progress)
  - check recipient quota & ACL at time of RCPT TO: in lmtpd (Ken Murchison)
  - support for LMTP STARTTLS & SIZE extensions (Ken Murchison)
  - unified deliver.db, using cyrusdb interface, hopefully improving concurrency and performance (Ken Murchison)
  - fixed STORE FLAGS () bug (Ken Murchison)
  - fixed SEARCH SUBJECT vs. SEARCH HEADER SUBJECT bug (Ken Murchison)
  - users without an INBOX can have subscriptions (Ken Murchison; noticing a trend here?)
  - added cyrusdb_db3_nosync backend, used for duplicatedb and session cache, to postpone non-critical writes. (Ken Murchison)
  - support for STARTTLS and AUTH=ANONYMOUS for timsieved (Ken Murchison)
  - do setgid and initgroups in master (as urged by several people)
  - added more config info to IMAP ID (in a vain attempt to improve debugging)
  - configure now checks for DB3.3
  - SQUAT (Rob O’Callahan, roc@cs.cmu.edu)
  - change SEARCH HEADER x to SEARCH x utilizing internal cache where possible (Rob O’Callahan, roc@cs.cmu.edu)
  - an improved directory hashing option (Gary Mills, mills@cc.UManitoba.CA)
  - use of EGD for SSL/TLS (Amos Gouaux, amos@utdallas.edu)
  - separate certs/keys for services (Henning P. Schmiedehausen, hps@intermeta.de)
  - ability to force ipurge to traverse personal folders (Carsten Hoeger, choeger@suse.de)
  - fixed zero quota bugs in cyradm (Leena Heino, liinu@uta.fi)
  - ignore trailing whitespace in imapd.conf
  - Received: header (with TLS and AUTH info)
  - added ‘-i’ switch to sendmail command line for SIEVE reject, redirect and vacation
  - small fixes to notify_unix
  - added “duplicatesuppression” switch to imapd.conf for enabling/disabling duplicate delivery suppression (Birger Toedtmann, birger@takatukaland.de)
  Changes to the Cyrus IMAP Server since 2.0.15
  - fixed a longstanding bug in quota that would affect people with unusual top-level hierarchy, fix by John Darrow, John.P.Darrow@wheaton.edu.
  - some important fixes to db3 interface code, by Walter Wong wcw@cmu.edu, prompted by complaints from Scott Adkins adkinss@ohio.edu.
  - fixed some memory leaks in imclient and in the Perl IMAP module, prompted by Toni Andjelkovic toni@soth.at.
  - fixed a longstanding authentication error in the Perl IMAP module, should remove pesky extra Password: prompt.
  - fixed some allocation bugs in the managesieve perl module.
  Changes to the Cyrus IMAP Server since 2.0.14
  - fixed memory management bugs in imapd, lmtpd that were being hit due to the connection reuse code and causing subtle and annoying problems.
  - we now clean up better when deleting a user
  - fixed an endian bug in ipurge
  - pop3d now can also reuse processes.
  - fix a bug in imclient that would strike when cyradm specifies a mechanism on the command-line. (SASL mechanism names aren’t case sensitive.)
  - fix some bugs in handling SIGHUP in master
  - fix a couple of goofs in Admin.pm
  Changes to the Cyrus IMAP Server since 2.0.13
  - fixed a silly bug with reusing SSL connections
  - lmtpd can now service multiple clients in sequence, hopefully improving performance
  - changed how Berkeley db databases are opened, hopefully lessening the chance of deadlock and improving performance
  - fixed a couple of memory leaks
  - lessened the chance of a race condition during index_check()
  Changes to the Cyrus IMAP Server since 2.0.12
  - refactored code so less duplication
  - added alternate config file for partial virtual domain support
  - pop3d can now disable USER/PASS commands.
  - STARTTLS now accepts a SSLv23 hello but doesn’t allow SSLv23 to be negotiated.
  - imtest no longer buffers to aid use as an automated layer.
  - master now supports maximum number of service processes via the “maxchild” modifier.
  - fixed a bug in the Sieve string lexer.
  - one imapd process can now service multiple clients in sequence, eliminating a large number of forks.
  Changes to the Cyrus IMAP Server since 2.0.11
  - portability fixes involving setrlimit()
  - fixed compiler warnings
  - the STARTTLS command will only accept TLSv1 now, not SSLv2/v3. The imaps port is unaffected by this change.
  - timsieved no longer returns garbage strings.
  Changes to the Cyrus IMAP Server since 2.0.9
  - some small memory savings
  - the “fud” daemon once again works correctly
  - the IDLE extension now uses signals correctly
  - problems with libwrap have been resolved
  - imapd and pop3d now log connections protected via TLS.
  - efficiency improvements when searching for a particular message-id
  - fixed an envelope-parsing bug affecting SORT and THREAD
  - made RENAME keep the same mailbox uniqueid, preserving seen state across renames
  - STOREing flags to multiple messages in one command is now more efficient
  - RENAME now preserves the ACL
  - LIST is now as efficient as Cyrus v1.6, modulo Berkeley DB issues.
  - Sieve zephyr notifications are now correct.
  - crash in reconstruct now fixed.
  - man pages added for cyrus.conf, master, lmtpd, idled, ctl_mboxlist, and ctl_deliver.
  - master can now listen on specific interfaces
  - master can now reread /etc/cyrus.conf on SIGHUP.
  - timsieved now uses symlinks instead of hard links.
  Changes to the Cyrus IMAP Server since 2.0.8
  - remembered to update this file
  - bug in Cyrus::IMAP perl module affecting cyradm’s setquota fixed
  - portability fix with socklen_t
  Changes to the Cyrus IMAP Server since 2.0.7
  - preliminary implementation of the IDLE extension (Ken Murchison, ken@oceana.com).
  - THREAD=REFERENCES now part of the normal build.
  - tweaks to the installation documentation and suggested Sendmail configuration
  - portability fixes and other small bugfixes
  - added “-a” flag to lmtpd
  - master process can now export statistics about running processes via UCD SNMP AgentX
  - many fixes to Cyrus Murder-related code
  - fixes to perl code, especially the Sieve interface. added an IMSP interface to the perl code, but it still needs work.
  Changes to the Cyrus IMAP Server since 2.0.6
  - some number of random static variables eliminated, to save on memory footprint
  - recursive RENAME was a little to eager; fixed. RENAME will also give the client a hint that a sub-RENAME failed. (mostly probably useful for cyradm, but cyradm doesn’t take advantage of it yet.)
  - THREAD=X-JWZ has turned into THREAD=REFERENCES (Ken Murchison)
  - DELETE wasn’t failing cleanly in database code; fixed.
  - off-by-one bug in seen_db fixed.
  - starting/committing/aborting transactions now logged more correctly in cyrsudb_db3
  - master will now accept port numbers instead of just service names in cyrus.conf. also logs even more verbosely (see bug #115.)
  - libwrap_init() is now inside the loop, since i don’t quite understand the semantics of libwrap calls.
  - setquota in cyradm now behaves more sanely (and gives correct usage message).
  - bugfixes to the managesieve client perl api. (still needs work.)
  - small fixes in timsieved.
  - added a “make dist” target so i won’t dread releases as much.
  Changes to the Cyrus IMAP Server since 2.0.5
  - APPEND now honors the Seen flag.
  - mailboxes file can once again be a flat text file. (compile-time choice)
  - subscriptions file can be flat text or berkeley db. likewise for seen state.
  - unfortunately, the format of the mailboxes file has changed.
  - implementation of “JWZ” threading, a first pass on the forthcoming THREAD=REFERENCES.
  - bugfixes in libacap.
  - bugfixes in other Murder related functionality.
  - removal of dead code.
  - will now look in CYRUS_PREFIX/etc/imapd.conf if there’s no /etc/imapd.conf.
  - more paranoid implementation of ID.
  - more descriptive lmtp errors.
  - finished implementation of LMTP 8BITMIME.
  - fixed minor bugs in pop3d.
  - small test suite for cyrusdb backends added in lib/test/.
  - added -DPERL_POLLUTE to the perl compilation to deal with Perl 5.6.
  - small additions to the Sieve library.
  - As usual, owe lots of thanks to Ken Murchison for his hard work and awesome implementations.
  Changes to the Cyrus IMAP Server SINCE 2.0.4
  - Now should work with Berkeley DB 3.1, but does not auto-upgrade 3.0 databases (and, in fact, I haven’t written any upgrade software yet).
  - SORT and THREAD should now function correctly.
  - Some configure fixes.
  - Some fixes for possible race conditions in initializing services and database structures.
  - Some non-gcc compile fixes with structure initialization.
  - Some non gcc compile fixes with structure initialization.
  Changes to the Cyrus IMAP Server SINCE 2.0.3
  - fixed mbpath and ipurge. Thanks to Alain Turbide for the bug report.
  - configure: removed mmap_private.c; it was buggy, and not worth supporting.
  - configure: improvements in detecting libwrap, typos fixed in detecting libsasl.
  - Merged the acapsieve library into libacap.
  - improvements to the ACAP API.
  - invariant checks added to the skiplist code.
  - bugfix in TCL cyradm.
  - acapmbox.c: bugfixes in handling acap connections.
  - fix the size given for a unix socket address (changes throughout the code), patch thanks to Vladimir Kravchenko, jimson@null.ru.
  - rewrote deliver to use the generic LMTP API in lmtpengine.c. Likewise, implemented the client-side API in lmtpengine.c. (Still need to implement AUTH.)
  - added SORT and THREAD support (Ken Murchison, ken@oceana.com.)
  - In checking an APPEND command, we were rejecting valid system flags and accepting invalid ones.
  - minor bug fixes to proxyd.
  - large amount of debugging code added to target-acap.
  - build fixes to Perl programs.
  - allow plaintext authentication to timsieved.
  Changes to the Cyrus IMAP Server in 2.0
  - The mailboxes file is now a transaction-protected Berkeley database.
  - The core delivery process has been moved to lmtpd. deliver is now a simple wrapper to create an LMTP transaction.
  - master process, responsible for spawning services (imapd, lmtpd, etc.) and for routine housekeeping. Optionally, it can use libwrap to allow or deny connections.
  - ACAP (Application Configuration Access Protocol) support for Cyrus Murder: IMAP Aggregator.
  - Sieve enhancements: regular expressions, notifications, automatically setting IMAP flags.
  - SNMP (Simple Network Management Protocol) support for monitoring usage (e.g. number of users logged in) as well as for instrumenting protocol usage (e.g. number of times CREATE has been called).
  - Perl version of cyradm contributed by Brandon Allbery (allbery@ece.cmu.edu). Eventually we expect to transition to the Perl version away from the TCL version.
  - Bugfix in modified UTF-7 processing (for mailbox names). Bugfix in index_searchcacheheader().
  - Implemented the extension MULTIAPPEND.
  - RENAME is now hierarchical.
  - The right that controls whether a mailbox may be deleted is now “c”. (It used to be “d”.)
  - An additional backend for seen state has been created, seen_db. It stores seen state in a per-user database.