diff --git a/.prev-version b/.prev-version
index b042f94e..e710b3f7 100644
--- a/.prev-version
+++ b/.prev-version
@@ -1 +1 @@
-2.5.90
+2.5.91
diff --git a/NEWS b/NEWS
index 02d38555..52a5c805 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,8 @@
 GNU Bison NEWS
 
+* Noteworthy changes in release ?.? (????-??-??) [?]
+
+
 * Noteworthy changes in release 2.5.91 (2012-07-18) [beta]
 
 ** Future Changes