diff --git a/include/etl/version.h b/include/etl/version.h
index c00eabc8..21282bce 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -37,10 +37,10 @@ SOFTWARE.
 /// Definitions of the ETL version
 ///\ingroup utilities
 
-#define ETL_VERSION "11.8.0"
+#define ETL_VERSION "11.9.1"
 #define ETL_VERSION_MAJOR 11
-#define ETL_VERSION_MINOR  8
-#define ETL_VERSION_PATCH  0
+#define ETL_VERSION_MINOR  9
+#define ETL_VERSION_PATCH  1
 
 #endif
 
diff --git a/support/Release notes.txt b/support/Release notes.txt
index 26605032..7fec4cc5 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,3 +1,11 @@
+===============================================================================
+11.9.1
+Fix Github issue #73 (Timers)
+
+===============================================================================
+11.9.0
+Added CRC32-C (Castagnoli)
+
 ===============================================================================
 11.8.0
 Added more binary utilities.