Finish rt41536 merge

diff --cc RELNOTES
index c8752c53c34ddbb48d9a2e6ed674657129182b96,6a40abe86580a9d8dc3389a4cc1f2ab360268589..d3228acc414bec2dba6a38e0b39ffc8a624d74cd
--- 1/RELNOTES
--- 2/RELNOTES
+++ b/RELNOTES
@@@ -172,10 -172,11 +172,15 @@@ by Eric Young (eay@cryptsoft.com)
    Thanks to Antoine Beaupré from Debian for the suggested patch.
    [ISC-Bugs #41288]
  
+ - The DHCPv6 server now handles long valid and preferred lease times better.
+   Values that would cause the internal end time of the lease to wrap are
+   modified to work as infinite.
+   [ISC-Bugs #40773]
+ 
 +- Updated support for cross compiling by allowing the library archiver
 +  to be set at configure time via the environment variable 'AR'.
 +  [ISC-Bugs #41536]
 +
                        Changes since 4.3.3b1
  
  - None