update whatsnew for 2.4.2

diff --git a/doc/whatsnew.rst b/doc/whatsnew.rst
index 470ec752e87092e2b4e73e77c19b6323cd046a26..6d5bf96cfba0565be72dda6b14586089b369dc95 100644 (file)
--- a/doc/whatsnew.rst
+++ b/doc/whatsnew.rst
@@ -12,6 +12,9 @@ What's New in dnspython
 * 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
 -----