+2017-11-15, Version 5.8.0 (RC0)
+ * collectd: The core daemon is now completely licensed under the MIT
+ license.
+ * collectd: Added daemon option to avoid making BaseDir. Thanks to
+ Nathaniel Wesley Filardo and Florian Forster. #2422
+ * collectd: Global variables have been moved to their own module to make
+ porting collectd easier. Thanks to Sean Campbell. #2467
+ * collectd as well as Apache, memcached, OpenLDAP, Perl, RouterOS, SNMP,
+ Tail-CSV plugins: Free userdata for "plugin_register_complex_read()".
+ Thanks to Pavel Rochnyack. #2349
+ * Collectd client library: Added parsing and server code. Thanks to
+ Florian Forster. #2258
+ * Build system: Dependency on libltdl has been removed, support for
+ libtool 1 has been dropped. Thanks to Ruben Kerkhof. #1898
+ * Build system: The build system has been switched to non-recursive
+ make. Thanks to Ruben Kerkhof. #2085
+ * APC UPS plugin: The plugin's configuration is now optional. Without a
+ "<Plugin />" block reasonable defaults will be used. Thanks to Pavel
+ Rochnyack. #2351
+ * Chrony plugin: Several issues found when working with a stratum-1
+ server have been fixed. Thanks to Miroslav Lichvar. #2190
+ * Ceph plugin: Support for the Ceph version "Luminous" has been added.
+ Thanks to Aleksei Zakharov. #2464
+ * CPU plugin : Linux-specific "guest" states have been added. Thanks to
+ Xavier G. #2439
+ * cURL plugin, cURL-JSON, cURL-XML, DBI, FileCount, memcachec, Oracle,
+ PostgreSQL, Table, Tail, Tail CSV plugins: The ability to configure
+ the "plugin" field of generated metrics has been added. Thanks to
+ Pavel Rochnyack. #1944, #1681, #1558
+ * cURL-JSON plugin: Parsing of arrays has been fixed. Thanks to Florian
+ Forster. #2281
+ * DPDKEvents plugin: This new plugin reports link status and keep alive
+ events. Thanks to Maryam Tahhan, Harry van Haaren, Serhiy Pshyk,
+ Kim-Marie Jones, Krzysztof Matczak, Przemyslaw Szczerbik, Christian
+ Ehrhardt and Luca Boccassi. #2157, #2348, #2400, #2405, #2417
+ * DPDKStat plugin: The plugin has been refactored to make DPDK related
+ utility functions reusable. Thanks to Krzysztof Matczak, Przemyslaw
+ Szczerbik, Christian Ehrhardt and Luca Boccassi. #2130, #2348, #2400,
+ #2405, #2417
+ * DPDKStat plugin: The "LogLevel" and "RteDriverLibPath" config options
+ have been added. Thanks to Jiri Prokes. #2505
+ * Email plugin as well as Exec and Unixsock plugins: Use
+ "_SC_GETPW_R_SIZE_MAX". Thanks to Florian Forster. #2451
+ * FileCount plugin: Custom values for reported plugin, type and type
+ instance. Thanks to Pavel Rochnyack. #1979
+ * GenericJMX plugin: Support for "AtomicInteger" and "AtomicLong" has
+ been added. Thanks to Pierre Mauduit. #2158
+ * gRPC plugin: Support for meta data has been added. Thanks to Taylor
+ Cramer. #2378
+ * IPC plugin: Fixed failed compilation on AIX. Thanks to Pavel
+ Rochnyack. #2357
+ * Intel PMU plugin: This new plugin collects CPU performance metrics
+ using Intel's Performance Monitoring Unit (PMU). Scaling information
+ added to metadata. Thanks to Serhiy Pshyk and Roman Korynkevych.
+ #2276, #2398, #2374
+ * Intel RDT plugin: Support for collectd's logging infrastructure has
+ been added. PQoS monitoring groups are being reset on start-up to fix
+ potential previous unclean shutdowns. Thanks to Roman Korynkevych.
+ #2089.
+ * IPMI plugin: Support for System Event Log (SEL) has been added. Thanks
+ to Roman Korynkevych. #2091
+ * IPMI plugin: Support for remote IPMI controllers has been added.
+ Thanks to Pavel Rochnyack. #2024
+ * LVM plugin: A check for the "CAP_SYS_ADMIN" capability has been added.
+ This will give users an informative warning when the process is not
+ running with the required privileges for this plugin. Thanks to
+ Florian Forster. #2426, #2499
+ * mcelog plugin: This new plugin subscribes to Machine Check Exceptions
+ (MCE) and dispatches notifications. Metadata reset. Thanks to Maryam
+ Tahhan, Volodymyr Mytnyk, Taras Chornyi, Krzysztof Matczak and Roman
+ Korynkevych. #2003, #2246, #2380
+ * MQTT plugin: Add support for TLS in "Subscriber" blocks. Thanks to
+ Florian Forster. #2434
+ * memcached plugin: Persistent connections have been implemented. Fix
+ hit ratio reporting, add connections rate report. Thanks to Pavel
+ Rochnyack. #2388, #2385
+ * memcached plugin: The type of the "listen_disabled" metric has been
+ changed to "total_events". Thanks to Florian Forster. #2386, #2468
+ * Netlink plugin: The dropped packets metric has been added. Thanks to
+ Denys Fedoryshchenko. #2053
+ * NFS plugin: Support for NFS 4.2 metrics has been added. Thanks to
+ Marek Becka. #2369
+ * NFS plugin: Config options to ignore specified NFS versions have been
+ added. Thanks to Christian Bartolomäus. #2430
+ * NUT plugin: The "ConnectTimeout", "ForceSSL", "VerifyPeer" and
+ "CAPath" options have been added. Thanks to Pavel Rochnyack and Steven
+ Bell. #2145, #2354
+ * OpenLDAP plugin: A segfault after a connection failure has been fixed.
+ Thanks to Pavel Rochnyack. #2377
+ * Openvpn plugin: Added support for status files from latest OpenVPN-2.4
+ and possible from future versions. Thanks to Pavel Rochnyack. #2352
+ * OVS Events plugin: This new plugin reports link state changes from
+ Open vSwitch (OVS). Thanks to Volodymyr Mytnyk. #1971
+ * OVS Stats plugin: This new plugin reports bridge / interface
+ statistics from Open vSwitch (OVS). Thanks to Volodymyr Mytnyk and
+ Taras Chornyi. #2137
+ * Perl plugin: Bugfix, added check of proper interpreter initialization.
+ Thanks to Pavel Rochnyack. #2391
+ * PostgreSQL plugin: The plugin now sets the "application_name"
+ parameter when connecting to the database. Thanks to daniacs. #2497
+ * Processes plugin: The I/O operations reported for selected processes
+ has been fixed. The metric "ps_disk_octets" has been renamed to
+ "io_octets" because it actually contains the number of I/O operation
+ by the process, not just disk related I/O. Same for "io_ops"
+ (previously "ps_disk_ops"). The new metric "disk_octets" has been
+ added and is reporting disk I/O only. Add option to collect the count
+ of active memory maps for Linux processes. The "CollectFileDescriptor"
+ and "CollectContextSwitch" options have been added. Thanks to Pavel
+ Rochnyack and to Wilfried Goesgens. #2232, #2454, #1989
+ * Processes and TCPConns plugins: The OpenBSD implementation has been
+ changed to use "kvm_openfiles" with "KVM_NO_FILES". Thanks to Jeremie
+ Courreges-Anglas. #2061
+ * Python plugin: Extend Notification class to include metadata. Thanks
+ to Volodymyr Mytnyk. #2135
+ * Python plugin: The "CollectdException" class has been added. This
+ allows to throw an exception without a stack trace being logged.
+ Thanks to Sven Trenkel. #2330, #2346
+ * Sensors plugin: Support for (electrical) current has been added.
+ Thanks to Clemens Gruber. #2255
+ * SNMP plugin: Error handling has been improved: a potential double-free
+ is now avoided (potentially leaking memory) and handling of
+ non-failing subtrees has been fixed. Thanks to Pavel Rochnyack. #2449
+ * SNMP plugin: The "Timeout" and "Retries" config options have been
+ added. Thanks to Carlos Vicente. #1472, #2488
+ * SNMP Agent plugin: This new plugin implements an SNMP AgentX subagent
+ that receives and handles queries from SNMP master agent and returns
+ configured metrics. Thanks to Roman Korynkevych, Serhiy Pshyk and
+ Pavel Rochnyack. #2105, #2362
+ * Synproxy plugin: This new plugin provides statistics for Linux
+ SYNPROXY. Thanks to Marek Bečka. #2381
+ * Tail plugin: Allow the calculation of several distributions in one
+ "tail" instance through a "bucket" type. Thanks to Pavel Rochnyack.
+ #2442
+ * Turbostat plugin: Import "msr-index.h" header from Linux and better
+ support for mutliple packages. Thanks to Vincent Brillault. #2445,
+ #2446
+ * Uptime plugin: Changed implementation to read from "/proc/uptime"
+ instead of "/proc/stat". Update for Linux and AIX, uptime is read
+ directly using a system call. Update for BSD and Solaris, uptime is
+ calculated by subtracting boot time from current time. Thanks to Ivan
+ Kurnosov and Marcin Jurkowski. #2431, #2034
+ * UUID plugin: Support for libhal has been removed. Thanks to Ruben
+ Kerkhof. #2080
+ * Varnish plugin: Extended the varnish plugin with varnish-plus
+ counters. Fixed invalid data source type. Thanks to Denes Matetelki.
+ #2453, #2463
+ * virt plugin: The plugin has been updated to use
+ "virConnectListAllDomains()". Thanks to Denis Silakov. #2051
+ * virt plugin: Support for domain tags has been added. Thanks to
+ Francesco Romani. #2048
+ * virt plugin: Connection handling has been improved. Thanks to
+ Francesco Romani. #2100, #2101
+ * virt plugin: Many metrics have been added, including disk, hypervisor
+ CPU usage, performance monitoring events, domain state, CPU pinning
+ (affinity), file system, and job statistics. Thanks to Francesco
+ Romani and Przemyslaw Szczerbik. #2103, #2175, #2168
+ * Write Graphite plugin: Additional tests have been added. Thanks to
+ Florian Forster.
+ * Write HTTP plugin: The "Attribute" and "TTL" options for the KairosDB
+ format have been added. Implementation of "Prefix" option. Thanks to
+ jaroug, Denis Pompilio and Pavel Rochnyack. #2199, #2252, #2482
+ * Write MongoDB plugin: Memory leaks have been fixed. Thanks to
+ Saikrishna Arcot. #2307
+ * Write Prometheus plugin: Label values are now properly escaped. Thanks
+ to Florian Forster. #2035
+ * Write Redis plugin: Add "max_set_duration" to set duration for value.
+ Thanks to Tomofumi Hayashi. #2440
+ * Write Riemann plugin: Export times with microsecond resolution. Thanks
+ to mcorbin. #2315
+ * Write TSDB plugin: The options "ResolveInterval" and "ResolveJitter"
+ have been added to control DNS lookup behavior. This prevents DNS
+ flooding in case TSDB is not available. Thanks to Yves Mettier and
+ Florian Forster. #2059
+ * ZFS ARC plugin: Header lines are now ignored in the Linux
+ implementation. Thanks to YmrDtnJu. #2097
+
2017-06-06, Version 5.7.2
* Build system: The Notify Email plugin is no longer linked with
indirect dependencies. Thanks to Marc Fournier.