diff --git a/CHANGELOG.md b/CHANGELOG.md
index acb476677..487eaac27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# PonyORM release 0.7.8 (2019-01-19)
+
+## Bugfixes
+
+* #414: prefetching Optional relationships fails on 0.7.7
+* Fix a bug caused by incorrect deduplication of column values
+
+
 # PonyORM release 0.7.7 (2019-01-17)
 
 ## Major features
diff --git a/pony/__init__.py b/pony/__init__.py
index a63835f7b..7bb1e8a9c 100644
--- a/pony/__init__.py
+++ b/pony/__init__.py
@@ -3,7 +3,7 @@
 import os, sys
 from os.path import dirname
 
-__version__ = '0.7.8-dev'
+__version__ = '0.7.8'
 
 def detect_mode():
     try: import google.appengine