+2010-05-01, Version 4.10.0
+ * collectd: JSON output now includes the "dstypes" and "dsnames"
+ fields. This makes it easier for external applications to interpret
+ the data. Thanks to Chris Buben for his work.
+ * collectd: The new "Timeout" option can be used to specify a
+ "timeout" for missing values. This is used in the threshold checking
+ code to detect missing values. Thanks to Andrés J. Díaz for the
+ patch.
+ * apache plugin: Support for "IdleWorkers" (Apache 1.*: "IdleServers")
+ has been added.
+ * curl plugin: The new "ExcludeRegex" allows to easily exclude certain
+ lines from the match.
+ * curl_xml plugin: This new plugin allows to read XML files using cURL
+ and extract metrics included in the files. Thanks to Amit Gupta for
+ his work.
+ * filecount plugin: The new "IncludeHidden" option allows to include
+ "hidden" files and directories in the statistics. Thanks to Vaclav
+ Malek for the patch.
+ * logfile plugin: The new "PrintSeverity" option allows to include the
+ severity of a message in the output. Thanks to Clément Stenac for
+ his patch.
+ * memcachec plugin: The new "ExcludeRegex" allows to easily exclude
+ certain lines from the match.
+ * modbus plugin: This new plugin allows to read registers from
+ Modbus-TCP enabled devices.
+ * network plugin: The new "Interface" option allows to set the
+ interface to be used for multicast and, if supported, unicast
+ traffic. Thanks to Max Henkel for his work.
+ * openvpn plugin: The "CollectUserCount" and "CollectIndividualUsers"
+ options allow more detailed control over how to report sessions of
+ multiple users. Thanks to Fabian Schuh for his work.
+ * pinba plugin: This new plugin receives timing information from the
+ Pinba PHP extension, which can be used for profiling PHP code and
+ webserver performance. Thanks to Phoenix Kayo for his work.
+ * ping plugin: The new "MaxMissed" allows to re-resolve a hosts
+ address when it doesn't reply to a number of ping requests. Thanks
+ to Stefan Völkel for the patch.
+ * postgresql plugin: The "Interval" config option has been added. The
+ plugin has been relicensed under the 2-clause BSD license. Thanks to
+ Sebastian Harl for his work.
+ * processes plugin: Support for "code" and "data" virtual memory sizes
+ has been added. Thanks to Clément Stenac for his patch.
+ * python plugin: Support for Python 3 has been implemented. Thanks to
+ Sven Trenkel for his work.
+ * routeros plugin: Support for collecting CPU load, memory usage, used
+ and free disk space, sectors written and number of bad blocks from
+ MikroTik devices has been added.
+ * swap plugin: Support for Linux < 2.6 has been added. Thanks to Lorin
+ Scraba for his patch.
+ * tail plugin: The new "ExcludeRegex" allows to easily exclude certain
+ lines from the match. Thanks to Peter Warasin for his patch.
+ * write_http plugin: The "StoreRates" option has been added. Thanks to
+ Paul Sadauskas for his patch.
+ * regex match: The "Invert" option has been added. Thanks to Julien
+ Ammous for his patch.
+
+2010-04-22, Version 4.9.2
+ * Build system, various plugins: Fixes for AIX compatibility have been
+ added. Thanks to Manuel Sanmartin for his patches.
+ * Build system: Checking for "nanosleep" on old Solaris machines has
+ been fixed. Thanks to Vincent McIntyre and Sebastian Harl for
+ figuring out a way to make this work.
+ * collectd: Append a newline to messages written to STDERR.
+ * collectd: Serialization of NANs in JSON format has been fixed.
+ Thanks to Chris Buben for pointing out the resulting syntax error.
+ * collectd: Checks whether a "sleep" returned early have been added;
+ the cases are now handled correctly. Thanks to Michael Stapelberg
+ for the patch.
+ * collectd: Continue reading files in a directory when parsing one
+ file fails.
+ * apache plugin: Collection of the number of active connections has
+ been fixed for Apache 2.*.
+ * contextswitch plugin: Handle large counter/derive values correctly.
+ Thanks to Martin Merkel for reporting the bug.
+ * exec plugin: Error messages have been improved. The "running" flag
+ is now cleared correctly when forking a child fails.
+ * iptables plugin: Fix a violation of aliasing rules. This resolves a
+ warning / error with new GCC versions. Thanks to Jan Engelhardt for
+ the work-around.
+ * java plugin: The Java API files are now packaged into a .jar file.
+ Thanks to Amit Gupta for his patch.
+ * network plugin: Fix a segmentation fault when receiving packets with
+ an unknown data source type.
+ * network plugin: A memory leak when receiving encrypted network
+ packets has been fixed.
+ * openvpn plugin: Fix naming schema when reading "MULTI1" type status
+ files.
+ * oracle plugin: Fix checking for lost connections and reconnect in
+ this case. Thanks to Sven Trenkel for pointing out the problem.
+ * unixsock plugin: A memory leak in the "LISTVAL" command has been
+ fixed. Thanks to Peter Warasin for pointing it out.
+ * write_http plugin: Use the "any" authentication schema. This used to
+ be "digest". Thanks to Paul Sadauskas for the patch.
+
+2010-01-14, Version 4.9.1
+ * Documentation: Some manpage fixes.
+ * Default config: Added sample configuration for missing plugins.
+ * apache plugin: Fix a segmentation fault in the config handling of
+ VerifyPeer / VerifyHost. Thanks to "plazmus" for his or her patch.
+ * processes plugin: Fix handling of derive data sources.
+ * rrdtool plugin: Fix a bug with random write timeouts. Due to an
+ incorrect initialization some files may be suspended basically
+ indefinitely. After flushing the files they were written regularly
+ again.
+ * routeros plugin: Use the node name for the "host" field.
+ * Monitorus.pm: Put the plugin into the "Collectd::Plugins" namespace.
+ * Perl bindings: Fix a warning that was printed when building
+ debugging output.
+
+2009-12-21, Version 4.9.0
+ * contextswitch plugin: The new ContextSwitch plugin gathers the
+ number of context switches done by the CPU. Thanks to Patrik
+ Weiskircher for the patch.
+ * cpu plugin: Support for SMP (multiple processors) under FreeBSD has
+ been added. Thanks to Doug MacEachern for the patch.
+ * curl plugin: The “MeasureResponseTime” option has been added. Thanks
+ to Aman Gupta for the patch.
+ * df plugin: Collecting the inode count and reserved space has been
+ added. Thanks to Patrik Weiskircher for the patch.
+ * exec plugin: The environment variables “COLLECTD_INTERVAL” and
+ “COLLECTD_HOSTNAME” are now set before executing the application.
+ * Monitorus plugin: This Perl-based plugin to query statistics from
+ mon.itor.us has been added. Thanks to Jeff Green for the patch.
+ * netapp plugin: New plugin to collect statistics from NetApp filers.
+ Thanks to Sven Trenkel of the noris network AG for the patch.
+ * network plugin: Statistics collection about the plugin itself has
+ been implemented.
+ * openvpn plugin: Add support for more versions of the “status file”.
+ Thanks to Marco Chiappero for the patch.
+ * OpenVZ plugin: This Perl-based plugin to gather OpenVZ statistics
+ has been added. Thanks to Jonathan Kolb for the patch.
+ * ping plugin: The config options "SourceAddress" and "Device"
+ have been added. Thanks to Sebastian Harl for the patch.
+ * processes plugin: Collection of IO-metrics has been added. Thanks to
+ Andrés J. Díaz for the patch.
+ * python plugin: The new Python plugin integrates a Python interpreter
+ into collectd and allows to execute plugins written in the scripting
+ language. Thanks to Sven Trenkel for his work.
+ * routeros plugin: The new RouterOS plugin queries interface and
+ wireless registration statistics from RouterOS.
+ * Various plugins: AIX support has been added to the cpu, disk,
+ interface, load, memory, processes, and swap plugins. Thanks to
+ Manuel Sanmartin for his patches.
+ * hashed match: This match for simple load balancing and redundant
+ storage has been added.
+ * scale target: This target to scale (multiply) values by an arbitrary
+ value has been added.
+
+2010-04-22, Version 4.8.5
+ * collectd: Append a newline to messages written to STDERR.
+ * network plugin: Fix a segmentation fault when receiving packets with
+ an unknown data source type.
+
+2010-04-07, Version 4.8.4
+ * Build system, various plugins: Fixes for AIX compatibility have been
+ added. Thanks to Manuel Sanmartin for his patches.
+ * Build system: Checking for "nanosleep" on old Solaris machines has
+ been fixed. Thanks to Vincent McIntyre and Sebastian Harl for
+ figuring out a way to make this work.
+ * collectd: Serialization of NANs in JSON format has been fixed.
+ Thanks to Chris Buben for pointing out the resulting syntax error.
+ * collectd: Checks whether a "sleep" returned early have been added;
+ the cases are now handled correctly. Thanks to Michael Stapelberg
+ for the patch.
+ * collectd: Continue reading files in a directory when parsing one
+ file fails.
+ * apache plugin: Collection of the number of active connections has
+ been fixed for Apache 2.*.
+ * exec plugin: Error messages have been improved. The "running" flag
+ is now cleared correctly when forking a child fails.
+ * iptables plugin: Fix a violation of aliasing rules. This resolves a
+ warning / error with new GCC versions. Thanks to Jan Engelhardt for
+ the work-around.
+ * java plugin: The Java API files are now packaged into a .jar file.
+ Thanks to Amit Gupta for his patch.
+ * network plugin: A memory leak when receiving encrypted network
+ packets has been fixed.
+ * oracle plugin: Fix checking for lost connections and reconnect in
+ this case. Thanks to Sven Trenkel for pointing out the problem.
+ * unixsock plugin: A memory leak in the "LISTVAL" command has been
+ fixed. Thanks to Peter Warasin for pointing it out.
+ * write_http plugin: Use the "any" authentication schema. This used to
+ be "digest". Thanks to Paul Sadauskas for the patch.
+
+2010-01-14, Version 4.8.3
+ * Documentation: Some manpage fixes.
+ * rrdtool plugin: Fix a bug with random write timeouts. Due to an
+ incorrect initialization some files may be suspended basically
+ indefinitely. After flushing the files they were written regularly
+ again.
+
+2009-12-18, Version 4.8.2
+ * Build system, java plugin: Don't use “find -L” to search for Java
+ headers, because it's a GNU extension.
+ * Build system: Support for parallel builds has been improved. Thanks
+ Sebastian Harl and Stefan Völkel for looking into this.
+ * collectd: Print error messages to STDERR if no log plugin has been
+ loaded.
+ * genericjmx plugin: Close and re-open the connection upon I/O-errors.
+ * gmond plugin: Fix typos which caused syntax errors.
+ * memory plugin: Handling of >4 Gbyte of memory has been fixed.
+ * network plugin: The license has been changed to LGPL 2.1.
+ * oracle plugin: Reconnect to the database if the connection dies.
+ * rrdcached plugin: Work-around for a bug in RRDtool 1.4rc2 has been
+ added.
+ * snmp plugin: Handling of negative values has been fixed. Strings
+ containing control characters are now interpreted as hex-strings.
+ * unixsock plugin: A memory leak in the LISTVAL command has been
+ fixed. Thanks to Ben Knight for his patch.
+