ChangeLog

1097.	[func]		fdupont
	Reorganized the DHCPv4 and DHCPv6 services into run() (service
	loop), run_one() (receive, call next routine and send) and
	processPacket() (internal core processing of an incoming packet).
	(Trac #4108,#4266,#4267, git xxx)

1096.	[func]		tmark
	Both kea-dhcp4 and kea-dhcp6, now log the primary lease events (e.g.
	grants, renewals, releases, declines) at the INFO log level to the
	lease4_logger and lease6_logger repsectively.  Prior to this these
	events were logged at the DEBUG log level.
	(Trac #4316, git 9beca27e3d76d0ccec925125f23074227db08869)

1095.	[bug]		fdupont
	Fixed some minor Coverity-detected issues.
	(Trac #4326, git ad1f442ee4382b354dc8be84ba77785e565aa86b)

1094.	[bug]		marcin
	libdhcpsrv: Fixed issues with lease indexing in Memfile
	database backend.
	(Trac #4339, git a065144663ac716b1fa1c8c224a88aa176da9630)

1093.	[bug]		fdupont
	Fixed Coverity-detected overflows in pkt4::setFile() and setName().
	(Trac #4306, git 0b7388891eaab39fe727b076468d672551126796)

1092.	[func]		marcin
	DHCP option values can be specified within host reservations
	in the configuration file.
	(Trac #4319, git 069dd7c248afcfcb7e4d958f20faa32e946e74ce)

1091.	[bug]		fdupont
	Fixed Coverity-detected exception-handling issues.
	(Trac #4307, git 3e1050749d9684144e1bd17552af7e4abf3c0d17)

1090.	[func]		fdupont
	Added support for IP address (IPv4 and IPv6) literals in
	classification expressions.
	(Trac #4232, git b98cc019b172a4903a2121e910f3cee4eaca2d51)

1089.	[func]		fdupont
	Added relay4[X].exists method in classifications that checks
	whether a sub-option is present in theDHCPv4 RAI (Relay Agent
	Information, 82) option.
	(Trac #4313, git 87397fd75215b69ad79708aaa1d7505aca299fb5)

1088.	[bug]		fdupont
	Protected DHCP server main() routines against errors raised from
	logger calls in the error handler (aka double errors).
	(Trac #4310, git 6813e1a7520335f6920ff8de5e52ecdb24712910)

1087.	[bug]		fdupont
	Empty option specifications no longer require setting the
	csv-format parameter.
	(Trac #4291, git 398458f3ad4680fd5f3c032eb6c99d50c2981368)

1086.	[func]		marcin
	The Host class has been extended to store DHCP options to
	be assigned to a client.
	(Trac #3571, git 9d434f28cc4683eccbcca1ba0d1e45bceb5230d2)

1085.	[bug]		sar
	Always copy the DHCPv4 flags field from a client's request to the
	the server's resposne.
	(Trac #4292, git 8b7182abdc7ff47eb9b68451e7507b7e4b9872e0)

1084.	[bug]		fdupont
	Removed obsolete requirement of python3 by --enable-generate-docs
	configuration option.
	(Trac #4315, git 2c236316d5fbac9906cf48a6e4df1649e7545e67)

1083.	[bug]		marcin
	When lease-database configuration parameter is not
	specified the default lease database backend (memfile)
	is used.
	(Trac #3696, git 0be5e6eb32680a742ddcf427b8181f55c0c98115)

1082.	[func]		fdupont
	The following DHCPv4 options are now supported:
		nisplus-domain-name (64),
		nisplus-servers (65),
		mobile-ip-home-agent (68),
		smtp-server (69),
		pop-server (70),
		nntp-server (71),
		www-server (72),
		finger-server (73),
		irc-server (74),
		streettalk-server (75)
		streettalk-directory-assistance-server (76)
	(Trac #4286, git 5ed03ed5ea48334bbd16a9a8e1676f3b4cc730a0)

1081.	[bug]		jpopelka
	Added missing slashed in path_replacer.sh.
	(Github #10, git 8986813825623b19fb220534434d0c13785fc14c)

1080.	[func]		fdupont
	Added a concat function in classification which concatenates two
	strings.
	(Trac #4233, git eec10b436b928bd5eb3139c2f98ec9a6a818f30e)

1079.	[func]		fdupont
	Added Not, And and Or logical operators, parentheses around
	logical expressions and option[code].exist logical predicate
	(to check the presence of an empty option).
	(Trac #4231, git 8e01dbe2fe2d8c97f89c20f5bb1d03748a2432e0)

1078.	[func]		tomek
	Client classification in DHCPv4 has been enhanced. It is now
	possible to access relay sub-options using the expression
	relay[123].hex.
	(Trac #4264, git c13791e916ceae9a73ca44005581e0e39385a572)

1077.	[func]		marcin
	perfdhcp now accepts -f option for DHCPv4 server testing, which
	enables lease renewals at the specified rate.
	(Trac #4254, git 8c5630b9ce6d3fba224f0643a7c69e4f7aaefca7)

1076.	[bug]		jpopelka
	Fixed compilation issue in MySQL host data source: the
	dhcp_identifer_length is now unsigned long. This addresses
	a compilation problem on Fedora.
	(Github #17, git 8548d1b589df98cc956b4d80d2cb8819ef576717)

1075.	[bug]		fdupont
	Removed warnings emitted during generation of Doxygen documentation.
	(Trac #4234, git b67910a3893bc79eb77a48bae6c31214a317bd40)

1074.	[bug]		marcin
	Addressed regression in distcheck after merge of #4224.
	Before the changes one of the lease files produced by
	'kea-lfc' was not removed after tests running lease file
	cleanup. As a result, the distcheck failed discovering
	this file being left after distclean.
	(Trac #4249, git 04aa9b95bf8c4dd8b555dd78cc8cd57126473800)

1073.	[bug]		tmark
	This change bumps the MySQL schema version from 4.0 to 4.1 and includes
	the following changes: added explicit use of InnoDB engine to all MySQL
	table create statements,  MySQL lease dump output is now sorted by lease
	address in ascending order, and the MySQL lease_hwaddr_source table now
	contains an entry for HWADDR_SOURCE_UNKNOWN (i.e. source = 0). Our thanks
	to Sebastien Couture at Ubity Inc. for reporting the InnoDB engine issue
	and submitting a fix for it.
	(Github #16, Trac #4237,#4238, git f0fb9f35a394785215573a591c2bcc68ab481436)

1075.	[doc]		marcin
	Changed Kea license from ISC to Mozilla Public License,
	v. 2.0.
	(Trac #4236, git a0574cdab4deb31e3244fc4e237753a1ad361d96)

1074.	[bug]		marcin
	PID files created by Kea processes are used in shell based
	tests to determine if the given process is running. This
	solves the problem whereby some unrelated processes could
	be reported as running Kea processes in those tests, causing
	the tests to fail.
	(Trac #4224, git 94edccc50cb374ec4db35f653b869c9f06d356ea)

1073.	[doc]		tomek
	Developer's Guide updated with client classification text
	and several clean-ups.
	(Trac #4102, git ac33ebf7428ba5935d3302d000bed317716fabfe)

1072.	[bug]		tmark
	The lease6 hardware address source value is now being properly populated.
	Prior to this the value stored with each IPv6 lease was always zero.
	(Trac #4247, git 27886dadcf9051dc622ee6fde586c27f3d431f8b)

1071.	[func]		tmark
	Assigned unique log message IDs to log messages issued from
	MySQL hosts storage operations, eliminating resuse of
	lease database message IDs.
	(Trac #4216, git f0e37cd6d45537971a730c68187011dce41217cc)

1070.	[doc]		sar
	Correct v6 classification examples to use client-id (1) instead
	of server-id (2).
	(Trac #4222, git 69dd98d03861d9de72c2ef75c17c8154b0c5088b)

1069.	[bug]		tomek
	Improved handling of incoming packets with invalid client-id
	and DUID.
	(Trac #4206, git 2c94f80e30abe53ae5b677762fc69e888c92e03f)

1068.	[func]		marcin
	Renamed log message compiler binary from 'message' to
	'kea-msg-compiler'.
	(Trac #4228, git bbeb5c776c39b9f4132f7f614720db75590ccef9)

Kea 1.0.0-beta released on December 8, 2015

1067.	[doc]		sar
	Remove description of option[xx].text operator from classification
	until its use becomes clearer.
	(Trac #4218, git 22fe2bf889984078cd86c2a230a038632d21432c)

1066.	[func]		tomek
	Configuration parameters for setting up external hosts storage
	are now implemented. This feature is considered experimental
	for DHCPv4 and currently not really usable for DHCPv6.
	(Trac #3569, git 8896c9c3f77a7836d67e6c33943ac4892b851213)

1065.	[func]		fdupont,tomek
	The DHCPv4 server now stores Relay Agent Information option as
	the last one.
	(trac #4121, git 2f883d4afb9b27c6c59d993692370685b206b6c2)

1064.	[doc]		tmark
	Added Kea logo to documentation.
	(trac #3702, git 7cae813ffe9a7320db5c84ac4beb1c3c0ecabbf7)

1063.	[func]		marcin
	It is possible to disable writing generated DHCPv6 server
	identifier in a persistent storage. This also fixes a
	failing distcheck.
	(trac #4211, git d8f39b7aff9312237d4b6d6de39a7336a25ead4c)

1062.	[func]		marcin
	libeval: options may be referenced by their names in
	expressions used for client classification.
	(Trac #4204 git 38aebe9566e09daa30796df686cfdd6d0c43fa4d)

1061.	[func]		kalmus
	MySqlHostDataSource class implementation. It provides methods
	for adding and extracting Host objects to and from MySQL database.
	(Trac #3682, git 275b40fb941a6934c6434715184ae1c39f3fb3f2)

1060.	[func]		stephen
	Incremented KEA_HOOKS_VERSION to 3 for Kea 1.0.
	(Trac #4208, git bf6f3d495604942a395b51bbe4c37001b7541242)

1059.	[func]		nicolas
	The client packet is now passed as a new parameter "query4"
	to the pkt4_send hook point. Thanks to Nicolas Chaigneau from
	Capgemini for providing this patch.
	(Github #8, git )

1058.	[func]		tomek
	Two new hook points lease4_recover and lease6_recover have been
	implemented. They are called when a declined IPv4 or IPv6 lease
	concludes its probation period and is being recovered into
	usable state.
	(Trac #3988, 3989, git 1930797c48fee7f4006a33cecd6f08b05ae76725)

1057.	[func]		marcin
	It is now possible to specify type and value of a DUID used
	as DHCPv6 server identifier.
	(trac #3874, git faf52b069cf774d0050d76b4f47b542b2b5105f2)

1056.	[doc]		sar
	Added description of the expression based classification
	system to the Kea Admin Guide.
	(Trac #4101, git 3ec88e0669470ab406c45d50d0f853f9aeb3bf04)

1055.	[func]		fdupont
	Classify match expressions are evaluated on incoming packets and
	requested options are appended when configured by the subnet, a
	class or globally.
	(Trac #4097, git 752ad11ff4ebe97ec27d098aff706d1999900346)

1054.	[func]		tmark
	Replaced underscores, "_", with hyphens "-", in the parameter
	names used in the kea-ddns server's configuration as well as
	those in the DDNS messages (NCRs) sent to the server. For
	example, "ip_address" is now "ip-address", "change_type" is
	now "change-type".  This makes JSON element naming consistent
	throughout Kea.
	(Trac #4202, git 91bf527662060d4b1e294cd53e79b431edf0e910)

1053.	[doc]		tomek
	Support for DHCPDECLINE (v4) and DECLINE (v6) messages is
	now described in the Kea User's Guide.
	(Trac #3990, git 6b0db91610420f3cce55d9f887d7c73660ece209)

1052.	[func]		marcin
	libeval: expressions involving options can now use textual or
	hexadecimal format of the options.
	(Trac #4093, git 4cdf0fff1067b3dde6570dc6831e8b1343bc50fe)

1051.	[func]		tmark
	kea-dhcp4 and kea-dhcp6 configuration parsing now supports
	the "client-classes" element for defining client classes.
	(Trac #4096, git d21fd6925983eb20f82029e3866652398ea5e5fe)

1050.	[doc]		tmark
	Corrected the descriptions of ncr-protocol and ncr-format parameters
	in the Kea Admin Guide.
	(Trac #4117, git 034c1c95b57768d5abbc7fb40cc57d7cadad21dd)

1049.	[build]		fdupont
	Add a new --enable-generate-parser configuration parameter
	(disabled by default) which makes flex and bison to regenerate
	parser files.
	(trac #4125, git 18321bf85f93b24d720f1ab2d90b4f4da85bc471)

1048.	[func]		fdupont,tomek
	Implement expression parser for client classification.
	(Trac #4088, git ac9eb312bfd1c6bf22a868ad789a0c049f33f637)

1047.	[func]*		stephen
	Change the way that hooks libraries are defined in the configuration
	file in preparation for allowing the specification of library-specific
	parameters in a future version of Kea.
	(Trac #3259, git b2986b0b0299e691b13123922129bdbf8575afdb)

1046.	[func]		tmark
	Upon startup Kea servers will now detect memfile lease files
	that need upgrading, and will launch in instance of the LFC
	to convert them to the most current memfile schema version.
	(Trac #3601, git ce4b0e42e8a01bbf3b58fdb1f505bbd6e2fad134)

1045.	[func]		tmark
	Added classes for storing client class definitions to libdhcpsrv.
	(Trac #4095, git 1039a942450e2a45a1e1aa9924cae4fdbd1541fe)

1044.	[build]		fdupont
	With the addition of a background thread for timeouts, ensure that
	the configuration and process spawning code are thread safe.
	(Trac #4060, git 4c130bd7c8d0eb97966e9821bab491bca5321b6c)

1043.	[func]		fdupont
	Implemented support for hex strings in client classification.
	(Trac #4091, git 406153af95404adb96296df09ec6033b484586e3)

1042.	[doc]		fdupont
	User Guide: parameters having default values may be omitted in the
	option definitions.
	(Trac #3927, git c7460e849258ec77cf1215a2baf840d98f1ab77b)

1041.	[func]		tomek
	A new library, libkea-eval has been added. It is not functional
	yet, but its purpose is to provide a generic expression
	evaluations that will be used in the upcoming client classification.
	(Trac #4081, git 28d818a26a5d128e8a51d62b68c0cc817e6e2415)

1040.	[func]		tmark
	When kea servers lose connectivity with MySQL or PostgreSQL backends
	they will log an error message and exit with an exit value of 255.
	(Trac #3780, git cf94e99698e1d8a1613026bda5e4fc9bb4a68d74)

1039.	[doc]		marcin
	Configuration parameters pertaining to processing expired
	leases by the DHCPv4 and DHCPv6 server have been documented.
	(Trac #3979, git a2ee99ba313e54a9dcf8a09ed118dbfe612e3d55)

1038.	[func]*		marcin
	DHCPv4 and DHCPv6 servers reclaim expired leases before they
	are re-assigned.
	(Trac #3977, git 5880e706cb27c19b1b70296ccd8d96e38e82027b)

1037.	[func]		fdupont
	Added a new 'leases-reclaim' command which reclaims expired leases
	immediately.
	(Trac #3978, git 9d5716e5bd6b151d90591f8497bae689321875c2)

1036.	[func]		tmark
	kea-admin now supports upgrading from Postgres schema version
	1.0 to 2.0.  Schema 2.0 includes support for lease expiration
	and reclamation.
	(Trac #3969, git 8fde70c1b63b5a2646688290b1d0cf53f4c964ad)

1035.	[doc]		fdupont
	Modified documentation of DHCP options to show internal format
	of records.
	(Trac #4071, git c5cffe74ac1bd38e4870ff1c22c36febb46e8c27))

1034.	[func]		fdupont
	Add support for DHCPv4 subnet selection option.
	(Trac #4058, git b7072884e8ce74dc64cd74e101d81e5c0763f492)

1033.	[bug]		stephen
	Updated OutputBuffer class to address warnings from Coverity.
	(Trac #3443, git 4bf0a14aa7a1303ed6959127c5354687e9f222ba)

1032.	[func]		marcin
	PostgreSQL lease database backend has been extended with new
	functions to obtain expired leases and to delete expired
	reclaimed leases.
	(Trac #3968, git 0bc02588d8553ba9a4fc749115a3e370407d7287)

1031.	[build]		fdupont
	Rewrote the system_messages tool from Python to C++.
	(Trac #3516, git a8195310c641027d1822344cafad64e6f695d614)

1030.	[bug]		marcin
	Fixed failing 'reclaimExpiredLeasesTimeout' unit tests on
	some virtual machines.
	(Trac #4075, git c3a2487f53ecf69edc0a38f574fce17c4332162c)

1029.	[func]		tomek
	A new hook point lease6_decline has been added. It is called when
	the DHCPv6 server is about to decline a lease as a result of
	processing incoming DECLINE message.
	(Trac #3986, git b6e3f1bbe3595aeba769d627d571e2eeee38a397)

1028.	[func]		marcin
	Expired leases are processed periodically according to the
	server configuration.
	(Trac #3975, git 3bd8891c0b9cb7dc504fa69251610996775cefbf)

1027.	[func]		tomek
	Expired declined IPv6 leases can now be reclaimed (returned to the
	available pool) after probation	period elapses.
	(Trac #3985, git 9aadfa902d898ce1f52b773152a5b34519a9a9fe)

1026.	[doc]		stephen
	Added documentation for the kea-dhcp4.commands and
	kea-dhcp6.commands loggers.
	(Trac #3952, git 3eb5d3185683e05494c1d84ed7195627fce4b6c1)

1025.	[func]		tomek
	A new hook point lease4_decline has been added. It is called when
	the DHCPv4 server is about to decline a lease as a result of
	processing incoming DHCPDECLINE message.
	(Trac #3986, git 39bde93fe25e4aff52623d4df7fd55c64e0a9c21)

1024.	[func]*		tomek
	Boolean Skip flag in Hooks API has been replaced by enum status.
	This is backward incompatible change if you developed hook
	library that takes advantage of the skip flag. See Hooks
	Developer Guide for easy steps necessary for migration.
	(Trac #3499, git 99ca398d4d042a098b5c491368733220db8cdd08)

1023.	[func]		tmark
	kea-admin now supports upgrading from MySQL schema version 3.0
	to 4.0.  In addition, the lease6 data dump now contains the
	text label for lease_hwaddr_source column rather than its
	numeric value.
	(Trac #3967, git 2e13ac3b0b278faabe338b00ffee8259c13f5342)

1022.	[func]		fdupont
	Added support for the V4 link selection sub-option (RFC 3527).  If
	present in an incoming packet, the server will allocate an address
	in the subnet identified in the option. If this is impossible, no
	address will be allocated and the request refused.
	(Trac #4057, git 8c02cec5ec8e311a9d23fd582d8e9e8647667abb)

1021.	[bug]		stephen
	Added missing address parameter to ALLOC_ENGINE_V4_REQUEST_OUT_OF_POOL
	message.
	(Trac #3996, git 680233550747209a1707e8f920179479b980aa2a)

1020.	[func]		kalmus
	A general purpose base class for MySQL connection has been
	implemented.
	(Trac #3681, git 884d8bb4a55d3d7b1b8f3f01efb312bd8dec399b)

1019.	[func]		marcin
	Added new configuration parameters controlling processing of the
	expired leases in the DHCPv4 and DHCPv6 server.
	(Trac #3974, git c998d36c40cc46ffe9f888e615bbcfa0a311d40d)

1018.   [func]		sar
	Added support for several options for use by PXE.
	From RFC4578 (for DHCPv4) these are: 93 - client-system,
	94 - client-ndi, 97 - uuid-guid.
	From RFC5970 (for DHCPv6) these are: 59 - bootfile-url,
	60 - bootfile-param, 61 - client-arch-type, 62 - nii.
	(Trac #3576, git fdcc73afe7e26bd427817fd771567b1c44713b06)

1017.	[func]		tmark
	Lease dump SQL logic, used by kea-admin, is now supplied via stored
	procedures rather than external text files.  Files of the form
	lease_dump_<version>.sh will no longer be installed under
	<prefix>/share/kea/scripts.
	(Trac #3916, git 09cdd86a5e284250d7657a93a36df2e2705947d2)

1016.	[bug]		fdupont
	Fixed problems when --enable-static-link is specified as a
	"configure" option. With this switch present, all Kea
	executables (servers, tools, unit tests, etc) are linked
	to the static (vs. shared) version of Kea libraries.
	However, note that they can still be linked to dynamic
	system libraries.
	(Trac #4004, git 760a343efbd241f5ed333cfff088124378f69115)

1015.	[func]		tomek
	Expired declined leases can now be reclaimed (returned to the
	available pool) after probation	period elapses.
	(Trac #3984, #3976, git 32a8ec68e0e5ea93991915812158d7628d2b4709)

1014.	[func]		marcin
	Implemented lease4_expire and lease6_expire hooks in libdhcpsrv.
	(Trac #3972, git 8a8547aec1caf2a8d1c7ca206f68534f3c03f1d9)

1013.	[func]		marcin
	New mechanism for scheduling lease file cleanup is used in the
	DHCPv4 and DHCPv6 servers.
	(Trac #3971, git 431d515fc3d64aa82369c8eaf48d03339f12dc69)

1012.	[bug]		stephen
	Replace #include of message_dictionary.h in message_initializer.h
	with a declaration of the MessageDictionary class, avoiding the need
	to include message_dictionary.h in the set of header files installed.
	(Trac #4046, git 9f1801b4326f62632a7c9f0aa939d58f120c10e8)

1011.	[func]		fdupont
	Added definitions and tests for the options from secure DHCPv6.
	This protocol is still experimental. The option and other protocol
	codes are for testing, they will be updated when IANA assigns
	official values.
	(Trac #4015, git 95f8c0d0af45807c1f303b9bbbb08f82b3bfc343)

1010.	[bug]		tmark
	Fixed test failures occurring for some tests after
	IfaceMgr::closeSockets was called.
	(Trac #4067, git 9161867dc6a354659ae8b5115ee437ec76c1771e)

1009.	[bug]		fdupont
	Now libutil blocks all signals when creating a new thread
	(so signals are delivered only to the main thread).
	(Trac #4065, git a4a8e422e613e4378f0a0641e4c480b73d67ebeb)

1008.	[build]		fdupont
	Removed the included header-only ASIO code.  Kea is now built
	against the installed copy of Boost.  The build by default
	attempts to use the header-only error code (ASIO dependency), but
	may also use the version in the boost system library.  The
	location of this library can be specified.
	(Trac #4009, git 8c293bc0d1804a512964621f114e64fcba0abcb9)

1007.	[func]		tomek
	DECLINE message in DHCPv6 is now supported. The server is able
	to receive it, check its correctness and move the lease to
	DECLINED state. Currently there is no way to recover the lease
	before 'decline-probation-period' time.
	(Trac #3982, git 11e2c4366d8624601172c01e95cff6a8b95833b3)

1006.	[bug]		marcin
	Fixed issues with threads concurrency in the TimerMgr.
	(Trac #4047, git 48297af6e0443808a482536b61436a42bc6a5b38)

1005.	[func]		tomek
	DHCPDECLINE message in DHCPv4 is now supported. The server is able
	to receive it, check its correctness and move the lease to
	DECLINED state. Currently there is no way to recover the lease
	before 'decline-probation-period' time.
	(Trac #3981, git c14a63c0d3a56ea3e880e874f854adc0077de75e)

1004.	[bug]		fdupont
	Incoming Confirm, Rebind and Information-Request messages are
	now more thoroughly checked against presence of client-id
	and server-id options.
	(Trac #3773, git fd2889b9de45e2822b6713663bee06b75259c6dc)

1003.	[build]		fdupont
	Updated Makefiles to ensure that all required dynamic libraries
	are included in the link command line as some systems are unable
	handle implied library dependencies.
	(Trac #3911, git 4d13f5234da33df03c0989829a0e1c1056e53a4e)

1002.	[func]		marcin
	MySQL lease database backend has been extended with new
	functions to obtain expired leases and to delete expired
	reclaimed leases.
	(Trac #3966, git 419832a6279c70b5db04b1cab10737e31f2c99f9)

1001.	[build]		fdupont
	Fixed critical C++ issues in the Kea code. This does not cover
	auto_ptr warnings (just ignore them) or the gtest 1.7.0 bug with
	EXPECT_TRUE() and ASSERT_TRUE() macros (we recommend to download
	last subversion sources at http://googletest.googlecode.com/svn/trunk
	and use the --with-gtest-source configuration argument when
	you'd like to build unit tests).
	(Trac #4024, git 55afd98fead0c16bb81107dfc1a5f49a5e295aa6)

1000.	[func]		marcin
	Implemented Timer Manager which holds the pool of interval
	timers used by the DHCP servers.
	(Trac #3970, git bc8503055338da36d07a2b67c64087f645c9a9e3)

999.	[func]*		tmark
	The DHCPv4 server will now honor DHCPRELEASEs for leased addresses
	which cannot be matched to subnet.  This allows leases to be
	released after configuration changes have eliminated their subnet.
	Prior to this the server would reject the release and emit a
	DHCP4_RELEASE_FAIL_NO_SUBNET log message.
	(Trac #2615, git eeebf9f68cf5be6a0f7eefc78832d664361c4990)

998.	[func]		tomek
	'decline-probation-period' parameter has been added to DHCPv4
	and DHCPv6 configuration. It can be configured, but is not yet
	used, as the DECLINE message support is still pending implementation.
	(Trac #3983, git 6b10d119c89685476335f268181c9982f6fa6161)

997.	[build]		jreed
	Removed obsolete Python coverage build options.
	(Trac #3483, git a08cbbecbd3b11d0b73f68a40986a353b22ed3be)

996.	[func]		marcin
	Memfile lease database backend has been extended with new
	functions to obtain expired leases and to delete expired
	reclaimed leases.
	(Trac #3965, git dd5b95453528416f22e961e6ebb3051bc2ae788c)

995.	[build]		fdupont
	Removed additional files left over from BIND 10 (headers,
	src/lib/{asiodns,testutils,asiolink}).
	(Trac #40{28,29,31}, git 78ff0fb0a97731a8b3c055b1cbb4faebcd115f7c)

994.	[func]*		marcin
	DHCPv6 server fully supports RFC 7550.
	(Trac #3947, git c06ab97a4e068c4b4b11f4685c56dd402b2385dc)

993.	[bug]		fdupont
	The logging spec file was searched in the build tree when it
	was in the source tree so distcheck (where they differ) failed.
	(Trac #4026, git 5eb213647d7ac0a707530d57af2c6dbd725ac1b3)

992.	[func]		fdupont
	A 'flush' parameter has been added to logging configuration. It is
	now possible to disable automatic immediate flushing to achieve
	better logging performance.
	(Trac #3752, git 16c4c2b6d95c45864ec3e2b27e0d320e386b2c0b)

991.	[build]		fdupont
	Removed partial function template ordering macros to allow Kea to
	build with Boost 1.59 and later.  Also removed some
	compiler-dependent code.
	(Trac #4006, git e06934f211436eea37439128ff6f388709f01101)

990.	[bug]		tomek
	Improved child process signal handling. Improved number of
	exception handling routines in DHCPv4 and DHCPv6.
	(Trac #4000, git bf5e48f2cf80b5263cc89f445795bc8c5b8f011d)

Kea 0.9.2 released on July 28, 2015

989.	[bug]		tmark
	Fixed a bug in both DHCPv4 and DHCPv6 servers that could cause
	them to crash during sever shutdown when DNS updates are enabled.
	(Trac #3997, git ce91bdd78f420f64324c573a952ec804bc25e0d8)

988.	[bug]		fdupont
	keactrl no longer returns an error when the "status" command is
	issued and the Kea configuration file doesn't exist.
	(Trac #3785, git a27d72ef3cb7640a41dca26c8728a9cbd9ad1ca9)

987.	[bug]		marcin
	Fixed textual representation of the options containing an array
	of 1 byte long unsigned numbers.
	(Trac #3959, git 9045fd9d6d282184cce10a622c0108abab029d5b)

986.	[bug]		marcin
	Fixed the failing lease allocation from the large address and
	prefix pools.
	(Trac #3958, git c86b6a68725e2f57679598ff4890fc82f4482c20)

985.	[bug]		marcin
	Eliminated extraneous debug-level DHCP6_RESPONSE_DATA entry from the
	DHCPv6 server log output.  Prior to this the server was logging
	each response twice.
	(Trac #3949, git 023973cbce44e5fb92a2bc45e69f2786d5152091)

984.	[bug]		tmark
	Replaced used of "kill -0" with "ps -p" in keactrl when
	checking of servers are alive.  This makes it possible for
	non-root users to use keactrl to monitor server status.
	(Trac #3954, git f7f22b244343a3dc2d06645a47c2c65a5134326e)

983.	[bug]		fdupont
	Enforce numeric month values in Posix date printing.
	(Trac #3944, git fdbe74b0235055057a37c6ce2b0aaf88f0cc7891)

982.	[bug]		marcin
	Fixed the typo in the name of the D2 logger.
	(Trac #3951, git 92305b2a1774df1cf1bdfeb93d787fea0ab27f74)

981.	[bug]		tmark
	keactrl now uses PID files to identify and control server instances.
	Prior to this it relied on the system command, "ps", which could lead
	to it misinterpreting which processes are or are not running.
	(Trac #3939, git 93a720ed7ffdffe66bd835cd64f78e4ad601637a)

980.	[doc]		marcin
	Updated Developer's Guide.
	(Trac #3484, git 220c337c31a592311363eca981c7f1578abbe15d)

979.	[bug]		fdupont
	Fixed two cases of public variables in a base class being
	hidden by variables in a derived class.
	(Trac #3920, git bd42a66fb67aab3fe397523c6fdbf14a939587c8)

978.	[func]		tmark
	DHCPv4, DHCPv6, and DHCP_DDNS now all create PID files upon
	startup.  The PID file pathname is formed from:
		<localstatedir>/<conf name>.<binary-name>.pid
	If a server's PID file exists and contains the PID of a
	live process, it will emit a log message and exit.
	(Trac #3769, git cdce632add025aaadbcdc89078f5bd3e19cfb5ca)

977.	[doc]		tomek
	Frequently Asked Questions section added to the Kea User's Guide.
	(Trac #3873, #3847, git 95683c9d3c3dd7024269df1904b6cbe5817741a2)

976.	[build]		tomek
	Included missing Doxygen documentation images in the tarball.
	(Trac #3928, git 2fb63a18897b93b12a5fc4635d4ac29e0bf82841)

975.	[doc]		marcin
	Updated the list of standard DHCPv4 options in the User's Guide
	with the information of whether they are returned by the server
	even when they are not requested.
	(Trac #3578, git b361b28ce53729a5f2d59f79670a36cf1a4a0352)

974.	[bug]*		marcin
	Corrected invalid format of the DHCPv4 option 5 (name-servers).
	The corrected format comprises a list of IPv4 addresses,
	rather than a single IPv4 address.
	(Trac #3887, git 54d1dbe6138e74c5efacfbaf85b77c87aea9ddf1)

973.	[doc]		marcin
	Added new section to the User's Guide to describe the issues
	with unicast responses to the DHCPINFORM messages when ARP
	traffic is blocked.
	(Trac #3740, git 22bcb060ceca544dfa1779815321155668bf19dc)

972.	[doc]		marcin
	Updated sections of User's Guide concerning creation of
	the option definitions and Vendor Specific Information
	options for both DHCPv4 and DHCPv6.
	(Trac #3846, git 6aebe0867ca9cf6fb09a289d80051125db7fa34b)

971.	[func]          fdupont
	Changed all occurrences of unlink() to the more portable remove()
	to avoid problems on operating systems where the former is not
	available.
	(Trac #3841, git 3752529ed3d72137f6899ef8225a0b231db5b1f0)

970.	[bug]		fdupont
	Refactored some code to suppress cppcheck warnings.
	(Trac #3919, git 26be6ac4cefde012ca8ef12607b6beaadca13eed)

Kea 0.9.2-beta released on June 30, 2015

969.	[func]		tomek
	KEA_SOCKET_TEST_DIR environment variable can be used to specify
	the directory for opening Unix sockets during tests. That may
	be used to avoid path length limitations when running unit-tests
	in deeply nested directories.
	(Trac #3918, git 9cfd502e8d4605eaf34f8744f90272dc3e8a3e34)

968.	[bug]           marcin
	DHCPv6 server extends the lifetime of the client's lease
	in the database when the client sends the Request message.
	This prevents premature lease expiration before the client
	renews the lease, according to the timers and lifetimes
	returned by the server.
	(Trac #3913, git 1d64829a3f1a8288dc833ed388d9ffc9fe4cf491)

967.	[doc]		tomek
	Management API section added in the DHCPv6 chapter of the Kea
	User's Guide
	(Trac #3917, git 21305d2da26090e3fad1ff9fb242a2bbb6b7e56b)

966.	[func]		fdupont
	Include database software details in extended version information.
	(Trac #3882, git b0e166c4d8b0383ebd6e2f51d55eed68a2bcafa8)

965.	[func]		sar
	Per IPv6 subnet statistics (subnet[id].assigned-nas,
	subnet[id].total-nas, subnet[id].assigned-pds, and
	subnet[id].total-pds) has been implemented.
	(Trac #3799, git 4aa4808268bbc54290578f60ba60ed33cf344712)

964.	[doc]		tomek
	User's Guide and Developer's Guide updated with statistics and
	control channel description.
	(Trac #3800, git 7ce8ca560370ec5f9bd4d5199a177b441f08a47e)

963.    [func]		tmark
	DHCPv6 server now supports a control channel, implemented over
	a UNIX socket. Currently supported commands are: statistic-get,
	statistic-reset, statistic-remove, statistic-get-all,
	statistic-reset-all, statistic-remove-all, and shutdown.
	(Trac #3797, git f49828612d9030c9f3441acaf4b3a9f60b492a3e)

962.	[func]		fdupont
	Make the parsing of options and vendor options more consistent
	between v4 and v6. In addition make the parsing more robust
	against malformed packets.
	(Trac #3618, git f4066793c5e034386c689fd72d2a91a70ffb6d5f)

961.	[func]		fdupont
	Improved error messages when handling invalid or malformed
	configuration file. File and line number are printed, when
	available.
	(Trac #3697, git 70fc36e164e988c251bdaaee7e27c5f6407e0f4c)

960.	[build]		fdupont
	Get rid of the last bundy pieces of code.
	(Trac #3732, git 6b7da42f902fabb6855e54a19ea472c18ba82a93)

959.	[build]		fdupont
	Removed no longer used logging in cc and config libraries.
	(Trac #3732, git 8d0324f4786900db953489ebaa9e018b1238543f)

958.	[func]		tomek
	DHCPv4 server now supports control channel, implemented over UNIX
	socket. Currently supported commands are: statistic-get,
	statistic-reset, statistic-remove, statistic-get-all,
	statistic-reset-all, statistic-remove-all, shutdown.
	(Trac #3880, git 688658395518f0b97d5384af81ceab5206691ad5)

957.	[func]		tomek
	Per IPv4 subnet statistics (subnet[id].assigned-addresses and
	subnet[id].total-addresses) has been implemented.
	(Trac #3798, git bab2030f56bbf390959f9f9238a8acc62d583c70)

956.	[func]		marcin
	Improved log messages emitted by the allocation engine,
	which now uses a dedicated logger.
	(Trac #3852, git 923928774f4f59c887d768cf155b5978e838a6f2)

955.	[func]		tmark
	Added unit tests to kea-admin for testing the lease-dump command
	with a PostgreSQL backend. Updated PostgreSQL database installation
	instructions in Kea Administrator's guide to include use of kea-admin
	tool.
	(Trac #3884, git 0772b7df2a89e1019141be1d0ddec30d53c4b919)

954.	[func]		fdupont
	Enhance the versioning information printed by the executables and
	make it more consistent across all of the executables. "-v" is for
	basic Kea version information, "-V" provides more detailed
	versioning and versions for external dynamic libraries, finally
	"-W" provides the configure report from the configuration step
	during the build of Kea.
	(Trac #3513, git 584cf666e101c6cb5c9af76175ddd867ece85764)
	(Trac #3859, git 384e6c6225de18fc97d606e4a1972baeef598ba4)

953.	[bug]		fdupont
	Corrected the setting of string characters to values above 127
	in HMAC tests.
	(Trac #3829, git 54f4ec64e513fea1547631122dc1af8579fae3db)

952.	[bug]		fdupont
	Made some loop indexes an unsigned type to avoid compiler warnings
	where the termination condition is comparison with an unsigned
	value.
	(Trac #3833, git 3db9f1d78f59856b982a1ff84c3b5a1ba7ea39df)

951.	[build]		fdupont
	Removed BUNDY configuration backend.
	(Trac #3732, git 96364cbbb15318c8f55d5b287cda0990d3eaae32)

950.	[doc]		marcin
	Updated section about logging in the User Guide. Also,
	updated Hooks Developer's Guide with the recommendations for
	the developers about use of logging in hooks libraries.
	(Trac #3805, git b403de1f335a2fb5098c9abc0858b8137892f868)

949.	[func]		tmark
	kea-admin now supports dumping MySQL and PostgreSQL lease tables
	to CSV file, via a new command "lease-dump".  This is primarily
	intended for use as a diagnostic tool.
	(Trac #3802, git 6ec774e8523e7f8415d6cd18c34062489e127847)

948.	[bug]		fdupont
	libdhcpsrv: check if new host reservation tries to use an already
	reserved address.
	(Trac #3652, git 4f10b78341b197bd321fbf2ec71db7420e40718d)

947.	[func]		marcin
	DHCPv6 server now supports Rapid Commit option.
	(Trac #3070, git a6b6156aaa95ab74c69a537e90483f82e9fbe4a2)

946.	[doc]		tmark
	Added doucmentation for kea-admin "lease-dump" command to the
	Kea Admininstrator's Guide and kea-admin man page.
	(Trac #3803, git 54b59b7ef02f6428405794066ea779e9bd4c0b6e)

945.	[func]		marcin
	Improved log messages emitted by the DHCPv6 server. Also,
	the server is now using multiple distinct loggers for logging
	messages pertaining to different functional parts of the
	code, e.g. packet transmission, lease allocation, DDNS etc.
	(Trac #3807, git c95ebdaf39c3d8d78d83d53db15824c60078f566)

944.    [func]      tmark
	kea-admin commands lease-init, lease-version, and lease-upgrade
	now support PostgreSQL. Note that at this time the PostgreSQL
	backend only supports Kea schema version 1.0, so there are no
	upgrades available.
	(Trac #3883, git 990a0d72fa247e4a12e2608994204c48274e4cd6)

943.	[func]		sar
	Split the DHCP-DDNS logging messages amongst several loggers to
	allow the administrator finer control over debugging messages.
	Messages pertaining to the name change requests processing include
	an ID, currently the DHCID, to identify the transactions.
	(Trac #3808, git 4fbe08234049de6ef67bb5cdb244d180a7a4c3a9)

942.	[func]		tomek
	18 new statistics added in DHCPv4 server: generic packet counters,
	per packet type counters, parsing failure and packet drops.
	(Trac #3794, git a61f40c44910a09699a9a566a5ec35ab758564ba)

941.	[bug]		marcin
	Configuration parser for host reservations returns an error
	when an unsupported parameter is specified.
	(Trac 3810, git 54ee0f6328a303c366dd8239e768dfc4a23a5d9b)

940.	[bug]		fdupont
	DHCPv4 server drops DHCPRELEASE messages sent from a bad
	location (i.e., no subnet can be selected)
	(Trac 3504, git f0f13ac74779f76ed7af91bd5dab3d11ba00be79)

939.	[bug]		fdupont
	Small fix in HooksDhcpv4SrvTest.subnet4SelectSimple unit-test.
	(Trac 3881, git a21afdffec41fceb61e6760d4108d670b2eabe75)

938.	[build]		fdupont
	Removed Python from the log library (code, message compiler and
	documentation)
	(Trac #3734, git d24b7c9716c6eb7a3e9dd2cb3fd2d1bfe4e1201f)

937.	[bug]		fdupont
	The log ID LOG_UNRECOGNISED_DIRECTIVE was changed to
	LOG_UNRECOGNIZED_DIRECTIVE to follow US English spelling.
	(Trac #3762, git 235e3304746352e9341008225f9f2392586a9f66)

936.	[bug]		fdupont
	Added an ASSERT to avoid a crash in HooksDhcpv4SrvTest
	subnet4SelectSimple unit test. Fixed out of bounds vector accesses
	in perfdhcp (which should not be able to handle links
	with long (i.e., more than 6 bytes) link-layer addresses).
	(Trac #3868, git c20f47e19d6060605c0611754db7b66b08553caa)

935.	[bug]		fdupont
	Fixed 3 out of bounds accesses on vectors in DHCP++ code.
	(Trac #3854, git de263ad0008f3494a85592f78db1ec662b68e689)

934.	[bug]		fdupont
	Renamed the DHCP-DDNS constant INVALID_SOCKET to SOCKET_NOT_VALID
	to avoid conflicting with a constant of that name defined on some
	operating systems.
	(Trac #3861, git 28205225ceed03ff3126e43cd06cedbaa7d8d657)

933.	[func]*		marcin
	DHCPv4 server by default identifies a client using the
	client-identifier, if present. The new configuration
	parameter 'match-client-id' allows for disabling this
	behavior, i.e. 'chaddr' field is used to identify the
	client instead.
	(Trac #3747, git b9dc6ffd0f3396e9da8e0c83fd82164b8b8af011)

932.	[func]		kalmus
	MySQL schema has been extended with tables that can store
	host reservation. This ticket updates database schema only,
	the tables are not in use yet.
	(Trac #3567, git d2cd5d53b3f31422a342c9bb8946dad9ed1ea032)

931.	[func]		marcin
	Improved log messages emitted by the DHCPv4 server. Also,
	the server is now using multiple distinct loggers for logging
	messages pertaining to different functional parts of the
	code, e.g. packet transmission, lease allocation, DDNS etc.
	For complete list of logger names see User Guide.
	(Trac #3806, git 7b148c2dd5e2696a541883223ce1efd2de81f143)

930.	[func]		tomek
	Statistics Manager is now implemented. There is a new library
	libkea-stats that governs statistics collection. Its usage will
	be added in the upcoming tickets.
	(Trac #3793, git 68e9554ecabfc2a79731eeec1c706522e4d39332)

929.	[build]		fdupont
	Corrected problem in build system whereby specifying an
	installation directory on the "configure" command line that
	included a "+" in the name caused the build to fail.
	(Trac #3713, git 741ff09b743307bad28ae13db440e5e0f402d319)

928.	[build]		fdupont
	A CONFIG_H_WAS_INCLUDED define has been added to provide
	a way in source files to check whether config.h has been included.
	(Trac #3812, git cbb135d5f217b0692dcdbc9cfcc04f6a0dbc3922)

927.	[bug]		tmark
	DHCPv4 no longer attempts to update the lease database with the
	generated FQDN when processing DHCPDISCOVERs.
	(Trac #3779, git 0b413ee8aba1afa1643b216a1e8c35103c6c975b)

926.	[bug]		marcin
	Fixed the crash during the logging deinitialization.
	(Trac #3823, git 435b958860ec7b921645bd5923fff96ea4341f19)

925.	[func]		marcin
	libkea-hooks logs when the callouts execution begins or ends
	for the particular hook. It also logs the execution time of
	individual callouts and the total time for all callouts.
	(Trac #3804 git dd1432d7807e7d3b54c87dd4b3155d3110619fbd)

924.	[bug]		marcin
	Removed shell warning about the "missing format character"
	in the keactrl usage.
	(Trac #3784, git aa683395a4cd75af5340eb8603fe46b7b0dd8f4e)

923.	[func]		tmark