diff --git a/doc/release-notes/mred/HISTORY.txt b/doc/release-notes/mred/HISTORY.txt
index 2da0e7b993..cb3f7764c1 100644
--- a/doc/release-notes/mred/HISTORY.txt
+++ b/doc/release-notes/mred/HISTORY.txt
@@ -1,4 +1,4 @@
-Version 4.1
+Version 4.1, August 2008
 
 Added auto-resize init argument and method to message%
 Added scroll-editor-to method to editor<%>
diff --git a/doc/release-notes/mzscheme/HISTORY.txt b/doc/release-notes/mzscheme/HISTORY.txt
index 532a0905eb..ca2557e9c8 100644
--- a/doc/release-notes/mzscheme/HISTORY.txt
+++ b/doc/release-notes/mzscheme/HISTORY.txt
@@ -1,4 +1,4 @@
-Version 4.1
+Version 4.1, August 2008
 Changed namespaces to have a base phase; for example, calling
  eval at compile-time uses a phase-1 namespace
 Added logging facilities: make-logger, etc.