diff --git a/firmware/open_evse/CHANGELOG b/firmware/open_evse/CHANGELOG
index 55331af3..640f9b23 100644
--- a/firmware/open_evse/CHANGELOG
+++ b/firmware/open_evse/CHANGELOG
@@ -1,5 +1,14 @@
 Change Log
 
+vD4.5.1 20161213 SCL
+- fix broken watchdog when compiling with AVR 1.6.10+. optimizer was
+	eliminating wdt_init(), so we add "used" attribute to it
+- Adafruit_TMP007.cpp - fix 1.6.10+ compiler warning
+- turn on RAPI_SEQUENCE_ID by default
+- compile with AVR board support 1.6.10+ from now on to save 2K+ code space
+	if using an older compiler and output is too big,
+	disable RAPI_SEQUENCE_ID
+	
 20161212 SCL
 - fix compile errors when GFI not defined
 - fix compile errors when AUTH_LOCK && !RAPI
diff --git a/firmware/open_evse/open_evse.h b/firmware/open_evse/open_evse.h
index 7bec7995..e0329260 100644
--- a/firmware/open_evse/open_evse.h
+++ b/firmware/open_evse/open_evse.h
@@ -37,16 +37,13 @@
 #else
 #include "WProgram.h" // shouldn't need this but arduino sometimes messes up and puts inside an #ifdef
 #endif // ARDUINO
-
-#define VERSION "D4.4.0"
+#define VERSION "D4.5.1"
 
 #include "Language_default.h"   //Default language should always be included as bottom layer
 
 //Language preferences: Add your custom languagefile here. See Language_default.h for more info.
 //#include "Language_norwegian.h"
 
-//#define NOCHECKS
-
 //-- begin features
 
 // auto detect L1/L2
@@ -68,7 +65,7 @@
 #define RAPI
 
 // optional sequence id can be inserted as last parameter to commands/responses
-//#define RAPI_SEQUENCE_ID
+#define RAPI_SEQUENCE_ID
 
 // add checksum to RAPI responses RAPI v2.0.0+
 #define RAPI_RESPONSE_CHK
diff --git a/firmware/open_evse/open_evse.ino b/firmware/open_evse/open_evse.ino
index b1663442..1fd4f363 100644
--- a/firmware/open_evse/open_evse.ino
+++ b/firmware/open_evse/open_evse.ino
@@ -235,7 +235,8 @@ void EvseReset();
 
 // wdt_init turns off the watchdog timer after we use it
 // to reboot
-void wdt_init(void) __attribute__((naked)) __attribute__((section(".init3")));
+
+void wdt_init(void) __attribute__((naked,used)) __attribute__((section(".init3")));
 void wdt_init(void)
 {
   MCUSR = 0;