BIRD 1.6.6 (2019-02-27)

• Several bugfixes related to route propagation

BIRD 1.6.5 (2019-01-05)

• MRT table dumps (RFC 6396)
• BGP Long-lived graceful restart
• Filter: Make ifname attribute modifiable
• Improved keeping track of IPv6 link-local addresses
• Many bugfixes

BIRD 1.6.4 (2018-03-22)

• Basic VRF support
• Simplified autoconf scripts
• BGP: Shutdown communication (RFC 8203)
• BGP: Allow exchanging LOCAL_PREF with eBGP peers
• BGP: Allow to specify interface for regular sessions
• BGP: New option 'disable after cease'
• RAdv: Support for more specific routes (RFC 4191)
• RAdv: Proper handling of prefix retraction
• Filter: Allow silent filter execution
• Filter: Fixed stack overflow in BGP mask expressions
• Several bug fixes

BIRD 1.6.3 (2016-12-21)

• Large BGP communities
• BFD authentication (MD5, SHA1)
• SHA1 and SHA2 authentication for RIP and OSPF
• Improved documentation
• Several bug fixes

BIRD 1.6.2 (2016-09-29)

• Fixes serious bug introduced in the previous version

BIRD 1.6.1 (2016-09-22)

• Support for IPv6 ECMP
• Better handling of IPv6 tentative addresses
• Several updates and fixes in Babel protocol
• Filter: New !~ operator
• Filter: ASN ranges in bgpmask
• KRT: New kernel protocol option 'metric'
• KRT: New route attribute 'krt_scope'
• Improved BIRD help messages
• Fixes memory leak in BGP multipath
• Fixes handling of empty path segments in BGP AS_PATH
• Several bug fixes

BIRD 1.6.0 (2016-04-29)

• Major RIP protocol redesign
• New Babel routing protocol
• BGP multipath support
• KRT: Add support for plenty of kernel route metrics
• KRT: Allow more than 256 routing tables
• Static: Allow to specify attributes for static routes
• Static: Support for BFD controlled static routes
• FreeBSD: Setup password for BGP MD5 authentication
• IO: Remove socket number limit
• Plenty of bug fixes
• Upgrade notes:
  • For RIP, most protocol options were moved to interface blocks.

BIRD 1.5.0 (2015-04-20)

• Major OSPF protocol redesign.
• OSPFv2 multi-instance extension (RFC 6549).
• BGP AS-wide unique router ID (RFC 6286).
• BGP enhanced route refresh (RFC 7313).
• Link state support in BGP.
• Latency tracking and internal watchdog.
• Uses high port range for BFD on BSD.
• Increase max symbol length to 64.
• Allows to define unnamed protocols from templates.
• Fixes two serious bugs in BGP.
• Several bugfixes and minor improvements.
• 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.