diff --git a/RELEASE b/RELEASE
index b889d20d71..8c50098d8a 100644
--- a/RELEASE
+++ b/RELEASE
@@ -1 +1 @@
-3.0.git
+3.1
diff --git a/doc/Doxyfile b/doc/Doxyfile
index 0c1604e007..53f9b25fe4 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -31,7 +31,7 @@ PROJECT_NAME           = FFmpeg
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER         =
+PROJECT_NUMBER         = 3.1
 
 # With the PROJECT_LOGO tag one can specify a logo or icon that is included
 # in the documentation. The maximum height of the logo should not exceed 55