Log Message:
Updated net/bird{,6} 1.4.5 to 1.6.3
-----------------------------------
Version 1.6.3 (2016-12-21)
  o Large BGP communities
  o BFD authentication (MD5, SHA1)
  o SHA1 and SHA2 authentication for RIP and OSPF
  o Improved documentation
  o Several bug fixes

Version 1.6.2 (2016-09-29)
  o Fixes serious bug introduced in the previous version

Version 1.6.1 (2016-09-22)
  o Support for IPv6 ECMP
  o Better handling of IPv6 tentative addresses
  o Several updates and fixes in Babel protocol
  o Filter: New !~ operator
  o Filter: ASN ranges in bgpmask
  o KRT: New kernel protocol option 'metric'
  o KRT: New route attribute 'krt_scope'
  o Improved BIRD help messages
  o Fixes memory leak in BGP multipath
  o Fixes handling of empty path segments in BGP AS_PATH
  o Several bug fixes

Version 1.6.0 (2016-04-29)
  o Major RIP protocol redesign
  o New Babel routing protocol
  o BGP multipath support
  o KRT: Add support for plenty of kernel route metrics
  o KRT: Allow more than 256 routing tables
  o Static: Allow to specify attributes for static routes
  o Static: Support for BFD controlled static routes
  o FreeBSD: Setup password for BGP MD5 authentication
  o IO: Remove socket number limit
  o Plenty of bug fixes

  Upgrade notes:

  For RIP, most protocol options were moved to interface blocks.

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.