+2009-10-04, Version 4.8.1
+ * Build system: Issues when building the iptables plugin have been
+ fixed.
+ * exec plugin: Clear the signal block mask before calling exec(2).
+ * perl plugin: Declare the “environ” variable. This solves build
+ issues on some platforms.
+ * processes plugin: Remove unnecessary call of realloc(3). Thanks to
+ Andrés J. Díaz for the patch.
+ * unixsock plugin: Fix a (well hidden) race condition related to file
+ descriptor handling.
+
+2009-09-13, Version 4.8.0
+ * collectd: Two new data source types, “DERIVE” and “ABSOLUTE”, have
+ been added. “DERIVE” can be used for counters that are reset
+ occasionally. Thanks to Mariusz Gronczewski for implementing this.
+ * thresholds: The advanced threshold options “Percentage”, “Hits”, and
+ “Hysteresis” have been added. Thanks to Andrés J. Díaz for his
+ patches.
+ * curl_json plugin: The new cURL-JSON plugin reads JSON files using
+ the cURL library and parses the contents according to user
+ specification. Among other things, this allows to read statistics
+ from a CouchDB instance. Thanks to Doug MacEachern for the patch.
+ * df plugin: Using the new “ReportByDevice” option the device rather
+ than the mount point can be used to identify partitions. Thanks to
+ Paul Sadauskas for the patch.
+ * dns plugin: The possibility to ignore numeric QTypes has been added.
+ Thanks to Mirko Buffoni for the patch.
+ * GenericJMX plugin: The new, Java-based GenericJMX plugin allows to
+ query arbitrary data from a Java process using the “Java Management
+ Extensions” (JMX).
+ * madwifi plugin: The new MadWifi plugin collects information about
+ Atheros wireless LAN chipsets from the MadWifi driver. Thanks to
+ Ondrej Zajicek for his patches.
+ * network plugin: The receive- and send-buffer-sizes have been made
+ configurable, allowing for bigger and smaller packets. Thanks to
+ Aman Gupta for the patch.
+ * olsrd plugin: The new OLSRd plugin queries routing information from
+ the “Optimized Link State Routing” daemon.
+ * rrdtool plugin: A new configuration option allows to define a random
+ write delay when writing RRD files. This spreads the load created by
+ writing RRD files more evenly. Thanks to Mariusz Gronczewski for the
+ patch.
+ * swap plugin: The possibility to collect swapped in/out pages has
+ been added to the Swap plugin. Thanks to Stefan Völkel for the
+ patch.
+ * tokyotyrant plugin: The new TokyoTyrant plugin reads the number of
+ records and file size from a running Tokyo Tyrant server. Thanks to
+ Paul Sadauskas for the patch.
+ * unixsock plugin: Add the “GETTHRESHOLD” command. This command can be
+ used to query the thresholds configured for a particular identifier.
+ * write_http plugin: The new Write HTTP plugin sends the values
+ collected by collectd to a web-server using HTTP POST requests.
+ Thanks to Paul Sadauskas for the patch.
+ * zfs_arc plugin: The new ZFS ARC plugin collects information about
+ the “Adaptive Replacement Cache” (ARC) of the “Zeta File-System”
+ (ZFS). Thanks to Anthony Dewhurst for the patch.
+ * empty_counter match: The new Empty Counter match matches value
+ lists, where at least one data source is of type COUNTER and the
+ counter value of all counter data sources is zero.
+
+ 2009-12-18, Version 4.7.5
+ * 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.
+ * 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.
+
2009-10-03, Version 4.7.4
* Build system: Issues when building the iptables plugin have been
fixed.