diff --git a/RELEASE b/RELEASE
index 238679db50..a435f5a56f 100644
--- a/RELEASE
+++ b/RELEASE
@@ -1 +1 @@
-5.1.git
+6.1
diff --git a/doc/Doxyfile b/doc/Doxyfile
index 572c532da5..afb4a97d9d 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -38,7 +38,7 @@ PROJECT_NAME           = FFmpeg
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         =
+PROJECT_NUMBER         = 6.1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a