diff --git a/src/version.py b/src/version.py
index 72059576e..ef363c513 100644
--- a/src/version.py
+++ b/src/version.py
@@ -16,4 +16,4 @@
along with this program. If not, see .
'''
-__VERSION__ = '4.0-dev'
+__VERSION__ = '4.0'
diff --git a/src/web_interface/templates/about.html b/src/web_interface/templates/about.html
index c8a5f161f..9762ba681 100644
--- a/src/web_interface/templates/about.html
+++ b/src/web_interface/templates/about.html
@@ -54,7 +54,7 @@
Change Log
-
FACT 4.0-dev
+
FACT 4.0 (2022-07-21)