+1855. [func] marcin
+ Improved failover procedure in Kea High Availability library
+ by introducing new communication-recovery state. In this
+ state the load balancing servers remain responsive to DHCP
+ queries when the communication between them is interrupted.
+ The new feature is controlled using the delayed-updates-limit
+ configuration parameter.
+ (Gitlab #1402)
+
1854. [func, perf] fdupont
Implemented "lease caching", a feature similar to ISC
DHCP's dhcp-cache-threshold. Lease caching is configured