+2009-02-15, Version 4.6.0
+ * collectd: Added the `filter chain' infrastructure, which allows the
+ user to use `matches' and `targets' to control value processing.
+ * collectd: The new `-T' command line argument allows more in-depth
+ testing of a configuration. Thanks to Doug MacEachern for the patch.
+ * collectd-nagios: The Nagios integration command has been updated to
+ use libcollectdclient. The `percentage' aggregation function has
+ been added. Thanks to Fabian Linzberger for the patch.
+ * libcollectdclient: A library which abstract communication with the
+ unixsock plugin for clients has been added.
+ * regex match: Match values by their identifies using regular
+ expressions.
+ * timediff match: Match for values with an invalid timestamp.
+ * value match: Select values by their data sources' values.
+ * notification target: Create and dispatch a notification.
+ * replace target: Replace parts of an identifier using regular
+ expressions.
+ * set target: Set (overwrite) entire parts of an identifier.
+ * bind plugin: This new plugin uses the new HTTP/XML interface to BIND
+ statistics, allowing very detailed name server statistics. Thanks to
+ Bruno Prémont for this plugin.
+ * cpu plugin: Report `interrupt' separately when using
+ sysctlbyname(3) (used under *BSD).
+ * csv plugin: Make it possible to write values to STDOUT instead of
+ files. This is meant for testing purposes mostly. The output written
+ to STDOUT is compatible with the exec plugin. Thanks to Doug
+ MacEachern for the patch.
+ * curl plugin: This new plugin can be used to read web pages and parse
+ them using the same mechanism that's used in the tail plugin.
+ * dbi plugin: This new plugin allows you to connect to a variety of
+ relational databases and use SQL to gather custom statistics from
+ it. It is similar to the already existing PostgreSQL plugin but uses
+ libdbi to communicate with the database(s).
+ * interface plugin: Use the ignorelist framework when selecting /
+ ignoring interfaces. This allows one to use regular expressions to
+ select interfaces, too.
+ * ipmi plugin: Handle temporary IPMI error conditions more gracefully.
+ Thanks to Bruno Prémont for this patch.
+ * memcached plugin: Add hit-ratio metric. Thanks to Doug MacEachern
+ for the patch.
+ * mysql plugin: Allow connecting to a database via the UNIX domain
+ socket, too. Thanks to Mirko Buffoni for the patch.
+ * network plugin: Further performance improvements for the receive
+ code. This hopefully will help very large setups.
+ * openvpn plugin: This new plugin collects statistics provided by the
+ OpenVPN daemon. Thanks to Doug MacEachern for the patch.
+ * oracle plugin: This new plugin allows you to connect to an Oracle
+ database and use SQL to gather custom statistics from it. It is
+ similar to the already existing PostgreSQL plugin.
+ * perl plugin: Compatibility fixes for broken versions of Perl 5.10
+ have been added.
+ * postgresql plugin: The preferred configuration syntax has been
+ updated to be in line with the syntax used by the new dbi and oracle
+ plugins. The compatibility code for the old syntax is present.
+ Support for the new `Result' blocks and the interval parameter has
+ been added.
+ * processes plugin: Stacksize of virtual memory usage statistics have
+ been addded. Portability fixes.
+ * rrdcached plugin: This new plugin uses the (still in development)
+ RRD accelerator daemon, rrdcached. This daemon works very similar to
+ the original rrdtool plugin of collectd, but adds some more nice
+ features.
+
2009-01-02, Version 4.5.2
* build system: Check for `mysql.h' and `mysql/mysql.h', since the
file may be in both locations, especially when the database was