diff --git a/.prev-version b/.prev-version
new file mode 100644
index 0000000..5186d07
--- /dev/null
+++ b/.prev-version
@@ -0,0 +1 @@
+4.0
diff --git a/NEWS b/NEWS
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--- a/NEWS
+++ b/NEWS
@@ -1,7 +1,7 @@
 #+TITLE: Petidomo Mailing List Server          -*- mode:org;fill-column:79; -*-
 #+STARTUP: showall
 
-* Noteworthy changes in release 4.1 (????-??-??) [stable]
+* Noteworthy changes in release 4.1 (2010-02-24) [stable]
 
   Moved Petidomo source code to SourceForge and released all files under
   GPL version 3 or later.