REL: 2.5.0

Author: effigies

Changelog

@@ -25,8 +25,11 @@ Eric Larson (EL), Demian Wassermann, and Stephan Gerhard.
 
 References like "pr/298" refer to github pull request numbers.
 
-2.5.0 (To be decided)
-=====================
+2.5.0 (Sunday 4 August 2019)
+============================
+
+The 2.5.x series is the last with support for either Python 2 or Python 3.4.
+Extended support for this series 2.5 will last through December 2020.
 
 Thanks for the test ECAT file and fix provided by Andrew Crabb.