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---------------------------------------------------------------------------
+Version 4.3.3 [beta] (rgerhards), 2009-0?-??
+- internal bugfix: object pointer was only reset to NULL when an object
+ was actually destructed. This most likely had no effect to existing code,
+ but it may also have caused trouble in remote cases. Similarly, the fix
+ may also cause trouble...
+---------------------------------------------------------------------------
+Version 4.3.2 [beta] (rgerhards), 2009-06-24
+- removed long-obsoleted property UxTradMsg
+- added a generic network stream server (in addition to rather specific
+ syslog tcp server)
+- added ability for the UDP output action to rebind its send socket after
+ sending n messages. New config directive $ActionSendUDPRebindInterval
+ added for the purpose. By default, rebinding is disabled. This is
+ considered useful for load balancers.
+- bugfix: imdiag/imtcp had a race condition
+- improved testbench (now much better code design and reuse)
+- added config switch --enable-testbench=no to turn off testbench
+---------------------------------------------------------------------------
+Version 4.3.1 [DEVEL] (rgerhards), 2009-05-25
+- added capability to run multiple tcp listeners (on different ports)
+- performance enhancement: imtcp calls parser no longer on input thread
+ but rather inside on of the potentially many main msg queue worker
+ threads (an enhancement scheduled for all input plugins where this is
+ possible)
+- added $GenerateConfigGraph configuration command which can be used
+ to generate nice-looking (and very informative) rsyslog configuration
+ graphs.
+- added $ActionName configuration directive (currently only used for
+ graph generation, but may find other uses)
+- improved doc
+ * added (hopefully) easier to grasp queue explanation
+- improved testbench
+ * added tests for queue disk-only mode (checks disk queue logic)
+- bugfix: light and full delay watermarks had invalid values, badly
+ affecting performance for delayable inputs
+- build system improvements - thanks to Michael Biebl
+- added new testing module imdiag, which enables to talk to the
+ rsyslog core at runtime. The current implementation is only a
+ beginning, but can be expanded over time
+---------------------------------------------------------------------------
+Version 4.3.0 [DEVEL] (rgerhards), 2009-04-17
+- new feature: new output plugin omprog, which permits to start program
+ and feed it (via its stdin) with syslog messages. If the program
+ terminates, it is restarted.
+- improved internal handling of RainerScript functions, building the
+ necessary plumbing to support more functions with decent runtime
+ performance. This is also necessary towards the long-term goal
+ of loadable library modules.
+- added new RainerScript function "tolower"
+- improved testbench
+ * added tests for tcp-based reception
+ * added tcp-load test (1000 connections, 20,000 messages)
+- added $MaxOpenFiles configuration directive
+- bugfix: solved potential memory leak in msg processing, could manifest
+ itself in imtcp
+- bugfix: ompgsql did not detect problems in sql command execution
+ this could cause loss of messages. The handling was correct if the
+ connection broke, but not if there was a problem with statement
+ execution. The most probable case for such a case would be invalid
+ sql inside the template, and this is now much easier to diagnose.
+---------------------------------------------------------------------------
+Version 4.2.1 [v4-stable] (rgerhards), 2009-0?-??
+- bugfix: stderr/stdout were not closed to be able to emit error messages,
+ but this caused ssh sessions to hang. Now we close them after the
+ initial initialization. See forum thread:
+ http://kb.monitorware.com/controlling-terminal-issues-t9875.html
+---------------------------------------------------------------------------
+Version 4.2.0 [v4-stable] (rgerhards), 2009-06-23
+- bugfix: light and full delay watermarks had invalid values, badly
+ affecting performance for delayable inputs
+- imported all patches from 3.22.1 as of today (see below)
+- bugfix: compile problems in im3195
+---------------------------------------------------------------------------
+Version 4.1.7 [BETA] (rgerhards), 2009-04-22
+- bugfix: $InputTCPMaxSessions config directive was accepted, but not
+ honored. This resulted in a fixed upper limit of 200 connections.
+- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
+ It has now been changed to 0700. For some background, please see
+ http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
+- bugfix: ompgsql did not detect problems in sql command execution
+ this could cause loss of messages. The handling was correct if the
+ connection broke, but not if there was a problem with statement
+ execution. The most probable case for such a case would be invalid
+ sql inside the template, and this is now much easier to diagnose.
+---------------------------------------------------------------------------
+Version 4.1.6 [DEVEL] (rgerhards), 2009-04-07
+- added new "csv" property replacer options to enable simple creation
+ of CSV-formatted outputs (format from RFC4180 is used)
+- implemented function support in RainerScript. That means the engine
+ parses and compile functions, as well as executes a few build-in
+ ones. Dynamic loading and registration of functions is not yet
+ supported - but we now have a good foundation to do that later on.
+- implemented the strlen() RainerScript function
+- added a template output module
+- added -T rsyslogd command line option, enables to specify a directory
+ where to chroot() into on startup. This is NOT a security feature but
+ introduced to support testing. Thus, -T does not make sure chroot()
+ is used in a secure way. (may be removed later)
+- added omstdout module for testing purposes. Spits out all messages to
+ stdout - no config option, no other features
+- added a parser testing suite (still needs to be extended, but a good
+ start)
+- modified $ModLoad statement so that for modules whom's name starts with
+ a dot, no path is prepended (this enables relative-pathes and should
+ not break any valid current config)
+- fixed a bug that caused action retries not to work correctly
+ situation was only cleared by a restart
+- bugfix: closed dynafile was potentially never written until another
+ dynafile name was generated - potential loss of messages
+- improved omfile so that it properly suspends itself if there is an
+ i/o or file name generation error. This enables it to be used with
+ the full high availability features of rsyslog's engine
+- bugfix: fixed some segaults on Solaris, where vsprintf() does not
+ check for NULL pointers
+- improved performance of regexp-based filters
+ Thanks to Arnaud Cornet for providing the idea and initial patch.
+- added a new way how output plugins may be passed parameters. This is
+ more effcient for some outputs. They new can receive fields not only
+ as a single string but rather in an array where each string is seperated.
+- added (some) developer documentation for output plugin interface
+- bugfix: potential abort with DA queue after high watermark is reached
+ There exists a race condition that can lead to a segfault. Thanks
+ go to vbernetr, who performed the analysis and provided patch, which
+ I only tweaked a very little bit.
+- bugfix: imtcp did incorrectly parse hostname/tag
+ Thanks to Luis Fernando Muñoz Mejías for the patch.
+---------------------------------------------------------------------------
+Version 4.1.5 [DEVEL] (rgerhards), 2009-03-11
+- bugfix: parser did not correctly parse fields in UDP-received messages
+- added ERE support in filter conditions
+ new comparison operation "ereregex"
+- added new config directive $RepeatedMsgContainsOriginalMsg so that the
+ "last message repeated n times" messages, if generated, may
+ have an alternate format that contains the message that is being repeated
+---------------------------------------------------------------------------
+Version 4.1.4 [DEVEL] (rgerhards), 2009-01-29
+- bugfix: inconsistent use of mutex/atomic operations could cause segfault
+ details are too many, for full analysis see blog post at:
+ http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
+- bugfix: unitialized mutex was used in msg.c:getPRI
+ This was subtle, because getPRI is called as part of the debugging code
+ (always executed) in syslogd.c:logmsg.
+- bufgix: $PreserveFQDN was not properly handled for locally emitted
+ messages
+---------------------------------------------------------------------------
+Version 4.1.3 [DEVEL] (rgerhards), 2008-12-17
+- added $InputTCPServerAddtlFrameDelimiter config directive, which
+ enables to specify an additional, non-standard message delimiter
+ for processing plain tcp syslog. This is primarily a fix for the invalid
+ framing used in Juniper's NetScreen products. Credit to forum user
+ Arv for suggesting this solution.
+- added $InputTCPServerInputName property, which enables a name to be
+ specified that will be available during message processing in the
+ inputname property. This is considered useful for logic that treats
+ messages differently depending on which input received them.
+- added $PreserveFQDN config file directive
+ Enables to use FQDNs in sender names where the legacy default
+ would have stripped the domain part.
+ Thanks to BlinkMind, Inc. http://www.blinkmind.com for sponsoring this
+ development.
+- bugfix: imudp went into an endless loop under some circumstances
+ (but could also leave it under some other circumstances...)
+ Thanks to David Lang and speedfox for reporting this issue.
+---------------------------------------------------------------------------
+Version 4.1.2 [DEVEL] (rgerhards), 2008-12-04
+- bugfix: code did not compile without zlib
+- security bugfix: $AllowedSender was not honored, all senders were
+ permitted instead (see http://www.rsyslog.com/Article322.phtml)
+- security fix: imudp emitted a message when a non-permitted sender
+ tried to send a message to it. This behaviour is operator-configurable.
+ If enabled, a message was emitted each time. That way an attacker could
+ effectively fill the disk via this facility. The message is now
+ emitted only once in a minute (this currently is a hard-coded limit,
+ if someone comes up with a good reason to make it configurable, we
+ will probably do that).
+- doc bugfix: typo in v3 compatibility document directive syntax
+ thanks to Andrej for reporting
+- imported other changes from 3.21.8 and 3.20.1 (see there)
+---------------------------------------------------------------------------
+Version 4.1.1 [DEVEL] (rgerhards), 2008-11-26
+- added $PrivDropToGroup, $PrivDropToUser, $PrivDropToGroupID,
+ $PrivDropToUserID config directives to enable dropping privileges.
+ This is an effort to provide a security enhancement. For the limits of this
+ approach, see http://wiki.rsyslog.com/index.php/Security
+- re-enabled imklog to compile on FreeBSD (brought in from beta)
+---------------------------------------------------------------------------
+Version 4.1.0 [DEVEL] (rgerhards), 2008-11-18
+
+********************************* WARNING *********************************
+This version has a slightly different on-disk format for message entries.
+As a consequence, old queue files being read by this version may have
+an invalid output timestamp, which could result to some malfunction inside
+the output driver. It is recommended to drain queues with the previous
+version before switching to this one.
+********************************* WARNING *********************************
+
+- greatly enhanced performance when compared to v3.
+- added configuration directive "HUPisRestart" which enables to configure
+ HUP to be either a full restart or "just" a leightweight way to
+ close open files.
+- enhanced legacy syslog parser to detect year if part of the timestamp
+ the format is based on what Cisco devices seem to emit.
+- added a setting "$OptimizeForUniprocessor" to enable users to turn off
+ pthread_yield calls which are counter-productive on multiprocessor
+ machines (but have been shown to be useful on uniprocessors)
+- reordered imudp processing. Message parsing is now done as part of main
+ message queue worker processing (was part of the input thread)
+ This should also improve performance, as potentially more work is
+ done in parallel.
+- bugfix: compressed syslog messages could be slightly mis-uncompressed
+ if the last byte of the compressed record was a NUL
+- added $UDPServerTimeRequery option which enables to work with
+ less acurate timestamps in favor of performance. This enables querying
+ of the time only every n-th time if imudp is running in the tight
+ receive loop (aka receiving messsages at a high rate)
+- doc bugfix: queue doc had wrong parameter name for setting controlling
+ worker thread shutdown period
+- restructured rsyslog.conf documentation
+- bugfix: memory leak in ompgsql
+ Thanks to Ken for providing the patch
+---------------------------------------------------------------------------
Version 3.22.1 [v3-stable] (rgerhards), 2009-07-02
- bugfix: invalid error message issued if $inlcudeConfig was on an empty
set of files (e.g. *.conf, where none such files existed)
@@ -89,9 +310,12 @@ Version 3.21.6 [DEVEL] (rgerhards), 2008-10-22
- bugfix: solved a segfault condition
- bugfix: subsecond time properties generated by imfile, imklog and
internal messages could be slightly inconsistent
+- bugfix: (potentially big) memory leak on HUP if queues could not be
+ drained before timeout - thanks to David Lang for pointing this out
- added capability to support multiple module search pathes. Thank
to Marius Tomaschewski for providing the patch.
- bugfix: im3195 did no longer compile
+- improved "make distcheck" by ensuring everything relevant is recompiled
---------------------------------------------------------------------------
Version 3.21.5 [DEVEL] (rgerhards), 2008-09-30
- performance optimization: unnecessary time() calls during message