Changes since 4.3.2
+- The server now does a better check to see if it can allocate the memory
+ for large blocks of v4 leases and should provide a slightly better error
+ message. Note well: the server pre-allocates v4 addresses, if you use
+ a large range, such as a /8, the server will attempt to use a large
+ amount of memory and may not start if there either isn't enough memory
+ or the size exceeds what the code supports.
+ [ISC-Bugs #38637]
+
- The server will now reject unicast Request, Renew, Decline, and Release
messages from a client unless the server would have sent that client the
dhcp6.unicast option. This behavior is in compliance with paragraph 1 in