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 to use slash as the hierarchy separator, instead of a period. (Ken Murchison, inspired by David Fuchs, firstname.lastname@example.org)
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, email@example.com)
change SEARCH HEADER x to SEARCH x utilizing internal cache where possible (Rob O’Callahan, firstname.lastname@example.org)
an improved directory hashing option (Gary Mills, mills@cc.UManitoba.CA)
use of EGD for SSL/TLS (Amos Gouaux, email@example.com)
separate certs/keys for services (Henning P. Schmiedehausen, firstname.lastname@example.org)
ability to force ipurge to traverse personal folders (Carsten Hoeger, email@example.com)
fixed zero quota bugs in cyradm (Leena Heino, firstname.lastname@example.org)
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, email@example.com)
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.
fixed some memory leaks in imclient and in the Perl IMAP module, prompted by Toni Andjelkovic firstname.lastname@example.org.
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, email@example.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, firstname.lastname@example.org.
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, email@example.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 (firstname.lastname@example.org). 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.