OpenBGPD 7.6

• Include OpenBSD 7.1 errata 008: bgpd(8) could fail to invalidate nexthops and incorrectly leave them in the FIB or Adj-RIB-Out
• Speedup bgpctl show rib 10/8 or-longer and show rib 10/8 or-shorter
• Switch various static hash tables to RB trees improving performance on large systems
• Export per neighbor pending update and withdraw statistics
• Fix race between a neighbor session reset and its update message backlog
• Improve handling of nexthop reachability state changes
• Further improve portability of the FIB handling code