diff --git a/src/CHANGES.md b/src/CHANGES.md
index 36063f46..b35f099e 100644
--- a/src/CHANGES.md
+++ b/src/CHANGES.md
@@ -1,5 +1,8 @@
 # Development Changes
 
+## 0.6.4 - 2023-04-06
+* merge PR #846, improved NRF24 communication and MI, thx @beegee3 & @rejoe2
+
 ## 0.6.3 - 2023-04-04
 * fix login, password length was not checked #852
 * merge PR #854 optimize browser caching, thx @tastendruecker123 #828
diff --git a/src/defines.h b/src/defines.h
index 13799dbc..1ff3e1b7 100644
--- a/src/defines.h
+++ b/src/defines.h
@@ -13,7 +13,7 @@
 //-------------------------------------
 #define VERSION_MAJOR       0
 #define VERSION_MINOR       6
-#define VERSION_PATCH       3
+#define VERSION_PATCH       4
 
 //-------------------------------------
 typedef struct {