+2008-03-29, Version 4.2.6
+ * collectd: Improved error messages when parsing the configuration.
+ * sensors plugin: Fix temperature collection with libsensors4.
+ * unixsock plugin: Fix mixed input and output operation on streams.
+ * wireless plugin: Fix reading noise value.
+
+2008-03-04, Version 4.2.5
+ * apache plugin: Improved initialization and error messages.
+ * exec plugin: Set supplementary group IDs.
+ * network plugin:
+ + Create separate threads for reading from the socket and parsing
+ and dispatching incoming packets. Versions prior to this may have
+ problems in high-load situations, where the socket receive buffers
+ overflows, resulting in gaps in the data.
+ + Use `memcpy' when constructing/parsing a package to avoid
+ alignment problems on weird architectures, such as Sparc.
+ + Translate doubles to/from the x86 byte representation to ensure
+ cross-platform compatibility.
+ * ping plugin: Correct the handling of the `TTL' setting.
+ * rrdtool plugin: Ensure correct handling of the `RRATimespan' option.
+ * swap plugin: Reapply a patch for Solaris.
+ * tcpconns plugin: Portability improvements.
+
+2008-01-21, Version 4.2.4
+ * unixsock plugin: A bug in the unixsock plugin caused it not to set
+ the permission on the socket as documented in the manpage. Thanks to
+ Evgeny Chukreev for fixing this issue.
+ * collectd: The documentation has been improved.
+
+2007-12-28, Version 4.2.3
+ * sensors plugin: Updated the plugin to build and work with version 3
+ of the libsensors library.
+
+2007-12-15, Version 4.2.2
+ * nginx plugin: Incorrect comparison of strings lead to a segfault
+ when using the plugin. Thanks to Saulius Grigaliunas for fixing
+ this.
+ * logfile plugin: The config option `Timestamp' was handled
+ incorrectly and basically always active. Thanks to Luke Heberling
+ for fixing this.
+
+2007-11-08, Version 4.2.1
+ * tcpconns plugin: Don't complain about a missing file if IPv6 is not
+ enabled on the host.
+ * snmp plugin: Fix a memory leak.
+
+2007-10-27, Version 4.2.0
+ * collectd: The new config option `Include' lets you include other
+ configfiles and thus split up your config into smaller parts. This
+ may be especially interesting for the snmp plugin to keep the data
+ definitions separate from the host definitions.
+ * ipvs plugin: The new `ipvs' plugin collects IPVS connection statistics
+ (number of connections, octets and packets for each service and
+ destination). Thanks to Sebastian Harl for this plugin.
+ * memcached plugin: The new `memcached' plugin connects to a memcached
+ daemon process and collects statistics of this distributed caching
+ system. Thanks to Antony Dovgal for contributing this plugin.
+ * nginx plugin: The new `nginx' plugin reads the status page of an
+ nginx daemon and saves the handled connections and requests.
+ * perl plugin: Many changes, including the added `EnableDebugger'
+ config option which lets you debug your Perl plugins more easily.
+ * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
+ be more thread-safe otherwise by locking calls to the library.
+ * snmp plugin: Added the options `Scale' and `Shift' to Data-blocks to
+ correct the values returned by SNMP-agents. If a <data> block is
+ defined as `table' the instance is now optional. The sequence number
+ is used as the type-instance in this case. The new `InstancePrefix'
+ option allows to add arbitrary prefixes to the type-instance.
+ * tcpconns plugin: The new `tcpconns' plugin collects the number of
+ certain TCP connections and what state they're in. This can be used
+ to see how many connections your FTP server has to handle or how
+ many outgoing connections your mailserver has open.
+
+2008-01-11, Version 4.1.6
+ * unixsock plugin: A bug in the unixsock plugin caused it not to set
+ the permission on the socket as documented in the manpage. Thanks to
+ Evgeny Chukreev for fixing this issue.
+ * collectd: The documentation has been improved.
+
+2007-12-27, Version 4.1.5
+ * rrdtool plugin: Fix a memory leak that only occurred in very-low-
+ memory situations.
+ * sensors plugin: Updated the plugin to build and work with version 3
+ of the libsensors library.
+
+2007-11-08, Version 4.1.4
+ * Build system: Improve detection of the rrd library, especially if
+ it's in a non-standard location.
+ * Build system: A bug when parsing the argument for
+ `--with-libnetsnmp' has been fixed.
+ * collectd: Implement `strerror_r' if the libc doesn't provide it.
+ * rrdtool plugin: Fix a bug in the shutdown sequence that might cause
+ a deadlock or delay when shutting down the daemon.
+ * snmp plugin: Fix a memory leak.
+
+2007-10-24, Version 4.1.3
+ * collectd: A build issue under Solaris has been resolved by renaming
+ data types.
+ * rrdtool plugin: Use the thread-safe RRD-library if available. Try to
+ be more thread-safe otherwise by locking calls to the library.
+
+2007-09-28, Version 4.1.2
+ * apcups plugin: Fix reporting of the `load percent' data.
+ * wireless plugin: Correct the handling of cards returning signal and
+ noise quality as percentage.
+ * perl plugin: Fix a possible buffer overflow in get_module_name().
+ * build system: Further improve the detection of libraries.
+ * netlink plugin: Build issues under some older versions of the Linux
+ includes (i. e. Debian Sarge) have been fixed.
+ * snmp plugin: Fix a potential segfault when a host times out. Add
+ support for the `timeticks' type.
+
+2007-09-12, Version 4.1.1
+ * Build system: The detection of `libnetlink' has been improved.
+ * collectd: The documentation has been fixed in numerous places.
+ * exec plugin: Setting the group under which to run a program has been
+ fixed.
+ * collectd: The `sstrerror' function was improved to work correctly
+ with the broken GNU version of `strerror_r'.
+ * collectd: Write an error message to STDERR when loading of a plugin
+ fails.
+ * apcups plugin: Fix the `types' used to submit the values: They still
+ has an `apcups_' prefix which doesn't work anymore.
+ * rrdtool plugin: Create new RRD-files with the `begin' time set to
+ whatever the client thinks is `now'..
+
+2007-09-01, Version 4.1.0
+ * Build system: The build system has been changed to automatically
+ disable all plugins, which are missing dependencies. The dependency
+ checking has been removed from the plugins themselves to remove
+ redundancy.
+ * Flexible interval: The interval of collected data is now sent along
+ with the data itself over the network, so that the interval-settings
+ of server and clients no longer needs to match.
+ * netlink plugin: The new `netlink' plugin connects to the Linux
+ kernel using a netlink socket and uses it to query information about
+ interfaces, qdiscs and classes.
+ * rrdtool plugin: The cache is now dumped to disk in an extra thread
+ to not block data collection.
+ * snmp plugin: The new `snmp' plugin can read values from SNMP enabled
+ network devices, such as switches, routers, thermometers, rack
+ monitoring servers, etc. The collectd-snmp(5) manpage documents this
+ plugin.
+ * unixsock plugin: Added the `LISTVAL' command.
+ * xmms plugin: The new `xmms' plugin graphs the bitrate and frequency
+ of music played with xmms.
+