diff --git a/doc/doxygen/Doxyfile b/doc/doxygen/Doxyfile
index b60907f..a590a7b 100644
--- a/doc/doxygen/Doxyfile
+++ b/doc/doxygen/Doxyfile
@@ -31,7 +31,7 @@ PROJECT_NAME           = RtAudio
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 4.0.8
+PROJECT_NUMBER         = 4.0.9
 
 # The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) 
 # base path where the generated documentation will be put. 
diff --git a/doc/release.txt b/doc/release.txt
index ae3025e..c58c9d9 100644
--- a/doc/release.txt
+++ b/doc/release.txt
@@ -2,7 +2,7 @@ RtAudio - a set of C++ classes that provide a common API for realtime audio inpu
 
 By Gary P. Scavone, 2001-2011.
 
-v4.0.9: (?? August 2011)
+v4.0.9: (11 August 2011)
 - fix for ASIO problem enumerating devices after opening duplex stream (Oliver Larkin)
 - fix for OS-X problems setting sample rate and bits-per-sample
 - updates for OS-X "Lion"