* TBD
+2.4.2
+-----
+
+* Async queries could wait forever instead of respecting the timeout if the timeout was
+ 0 and a packet was lost. The timeout is now respected.
+
+* Restore HTTP/2 support which was accidentally broken during the https refactoring done
+ as part of 2.4.0.
+
+* When an inception time and lifetime are specified, the signer now sets the expiration
+ to the inception time plus lifetime, instead of the current time plus the lifetime.
+
2.4.1
-----