+Version 1.5.0 (2015-04-20)
+ o Major OSPF protocol redesign.
+ o OSPFv2 multi-instance extension (RFC 6549).
+ o BGP AS-wide unique router ID (RFC 6286).
+ o BGP enhanced route refresh (RFC 7313).
+ o Link state support in BGP.
+ o Latency tracking and internal watchdog.
+ o Uses high port range for BFD on BSD.
+ o Increase max symbol length to 64.
+ o Allows to define unnamed protocols from templates.
+ o Fixes two serious bugs in BGP.
+ o Several bugfixes and minor improvements.
+ o Several minor option changes:
+ - OSPF: Protocol-wide 'instance id' option added.
+ - BGP: Parameters to option 'neighbor' extended.
+ - BGP: Separate option 'interface' added.
+ - BGP: Option 'start delay time' renamed to 'connect delay time'.
+ - BGP: Option 'route limit' deprecated.
+
+ Upgrade notes:
+
+ For OSPF, there are deep internal changes, but user-visible changes
+ are limited to log messages and minor changes in formatting of command
+ output.
+
+ For BGP, version 1.5.0 is essentially a minor release. There are two
+ deprecated options ('start delay time' and 'route limit') and some
+ minor formatting changes.
+
+
+Version 1.4.5 (2014-10-06)
+ o New 'show route noexport' command option.
+ o Port option for BGP sessions.
+ o Better constant handling in set literals.
+ o Better rate filtering of log messages.
+ o Several minor bugfixes.
+
+Version 1.4.4 (2014-07-09)
+ o Extended OSPF multipath support.
+ o Default router preference for RAdv.
+ o Significant changes in socket layer.
+ o Important bugfix in BGP.
+ o Several minor bugfixes.
+
+Version 1.4.3 (2014-04-14)
+ o Important bugfix in IPv6 BGP.
+
+Version 1.4.2 (2014-04-02)
+ o Important bugfix in BFD.
+
+Version 1.4.1 (2014-03-31)
+ o BGP add-path support (RFC draft).
+ o BGP graceful restart (RFC 4724).
+ o OSPF: many changes in socket layer.
+ o OSPF: support for secondary addresses in BSD.
+ o OSPF: names for vlink pseudointerfaces (vlinkX).
+ o Several bugfixes.
+
+Version 1.4.0 (2013-11-25)
+ o BFD protocol (RFC 5880).
+ o BFD support for OSPF and BGP.
+ o New 'allow local as' option for BGP.
+ o Filters allows setting gw, ifname and ifindex.
+ o Filter operator 'delete/filter' extended to bgp_paths.
+ o Filter operator 'len' extended to [e]clists.
+ o BIRD client now allows shorthands for noninteractive commands.
+ o Flag -P for PID file support.
+ o Flag -f added to force BIRD to run in foreground.
+ o Protocol export/import/receive limits are checked during reconfiguration.
+ o Several bugfixes and minor improvements.
+ o Several minor but incompatible changes:
+ - IBGP is multihop by default.
+ - Changes primary address selection on BSD to the first one.
+ - Integers in filters are handled as unsigned.
+ - ISO 8601 time formats used by default.
+ - Import of device routes from kernel protocol allowed.
+ - Last state change now tracks just protocol state change.
+ - Minor changes to default router ID calculation.
+
+Version 1.3.11 (2013-07-27)
+ o OSPF stub router option (RFC 3137).
+ o TTL security for OSPF and RIP.
+ o Protocol packet priority and traffic class handling.
+ o Multiple routing tables support for FreeBSD and OpenBSD.
+ o Extends constants to all filter data types.
+ o Implements eval command.
+ o 'bgppath ~ int set' filter operation.
+ o Several bugfixes.
+
+Version 1.3.10 (2013-04-30)
+ o Lightweight BIRD client for embedded environments.
+ o Dynamic IPv6 router advertisements.
+ o New 'next hop keep' option for BGP.
+ o Smart default routing table for 'show route export/preexport/protocol'.
+ o Automatic router ID selection could be configured to use address of loopback.
+ o Allows configured global addresses of NBMA neighbors in OSPFv3.
+ o Allows BIRD commands from UNIX shell even in restricted mode.
+ o Route limits inherited from templates can be disabled.
+ o Symbol names enclosed by apostrophes can contain dots.
+ o Several bugfixes.
+
+Version 1.3.9 (2013-01-11)
+ o BIRD can be configured to keep and show filtered routes.
+ o Separate receive and import limits.
+ o Several new reconfiguration cmd options (undo, timeout, check).
+ o Configurable automatic router ID selection.
+ o Dragonfly BSD support.
+ o Fixed OSPFv3 vlinks.
+ o Several minor bugfixes.
+
+Version 1.3.8 (2012-08-07)
+ o Generalized import and export route limits.
+ o RDNSS and DNSSL support for RAdv.
+ o Include in config file support wildcards.
+ o History deduplication in BIRD client.
+ o New route attributes krt_source, krt_metric.
+ o Different instance ID support for OSPFv3.
+ o Real broadcast mode for OSPFv2.
+ o Several minor bugfixes.
+
+Version 1.3.7 (2012-03-22)
+ o Route Origin Authorization basics.
+ o RIPng working again.
+ o Extended clist operations in filters.
+ o Fixes several bugs in BSD iface handling.
+ o Several minor bugfixes and enhancements.
+
+Version 1.3.6 (2012-01-20)
+ o Important bugfix in BGP.
+
+Version 1.3.5 (2012-01-10)
+ o Protocol templates.
+ o Deterministic MED option for BGP.
+ o Support for link-local addresses in BGP and static protocols.
+ o Several bugfixes.
+
+Version 1.3.4 (2011-10-10)
+ o Static recursive routes.
+ o Several bugfixes.
+
+Version 1.3.3 (2011-09-11)
+ o OSPF NSSA.
+ o BGP extended communities.
+ o BGP TTL security.
+ o Configuration option "include" added (based on patch from Alexander V. Chernikov).
+ o Some minor bugfixes.
+
+Version 1.3.2 (2011-07-08)
+ o Allows run with restricted privileges.
+ o Community list filter operation.
+ o Fixes several problems in filter syntax:
+ - Fixes several conflicts in the grammar.
+ - Fixes a bug in (a..b, c) pair patterns.
+ - Makes pair patterns orthogonal.
+ - Allows term expressions in pair patterns without additional ( ).
+ - Allows several comma separated values in switch cases.
+ o Many bugfixes.
+
+Version 1.3.1 (2011-05-02)
+ o Added Linux kernel route attributes krt_prefsrc and krt_realm.
+ o Added BGP option 'med metric' related to MED handling.
+ o Allows to use constants from /etc/iproute2/rt_* files.
+ o Several bugfixes.
+
+Version 1.3.0 (2011-03-31)
+ o Proper iBGP (can be used with IGP).
+ o Multipath support (OSPF and static).
+ o L2 link state detection.
+ o IPv6 router advertisements.
+ o Much improved OSPF reconfiguration.
+ o Point-to-MultiPoint interfaces (OSPF).
+ o Minor changes and improvements in config file grammar.
+ o Better community list matching.
+ o Changes default behavior of BGP IPv6 socket to v6only.
+ Use 'listen bgp dual' for the old behavior.
+ o Changes default for handling missing link-local addresses on
+ route servers. Use 'missing lladdr drop' for the old behavior.
+ o Important bugfix for OSPF.
+ o Several minor bugfixes.
+
+Version 1.2.5 (2010-10-10)
+ o Several mostly minor bugfixes.
+
+Version 1.2.4 (2010-08-03)
+ o Added 'show memory' command.
+ o Important bugfix in IPv6 BGP.
+ o Several minor bugfixes.
+
+Version 1.2.3 (2010-06-01)
+ o Pattern matching for community lists.
+ o Many fixes in OSPF protocol (esp. in multi-areas and vlinks).
+ o Several minor bugfixes.
+
Version 1.2.2 (2010-04-10)
o Much better BSD kernel support (IPv6, alien routes, ...).
o Deep OSPF socket changes, fixes OSPFv2/v3 behavior on BSD.