diff --git a/arduino/library-arduino.json b/arduino/library-arduino.json
index 7ffd4913..5e951baa 100644
--- a/arduino/library-arduino.json
+++ b/arduino/library-arduino.json
@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library ETL",
-  "version": "20.43.0",
+  "version": "20.43.1",
   "authors": {
     "name": "John Wellbelove",
     "email": "john.wellbelove@etlcpp.com"
diff --git a/arduino/library-arduino.properties b/arduino/library-arduino.properties
index 2b38100f..ad368df4 100644
--- a/arduino/library-arduino.properties
+++ b/arduino/library-arduino.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library ETL
-version=20.43.0
+version=20.43.1
 author= John Wellbelove <john.wellbelove@etlcpp.com>
 maintainer=John Wellbelove <john.wellbelove@etlcpp.com>
 license=MIT
diff --git a/include/etl/version.h b/include/etl/version.h
index d435a5e3..b5c6ea9e 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -40,7 +40,7 @@ SOFTWARE.
 
 #define ETL_VERSION_MAJOR 20
 #define ETL_VERSION_MINOR 43
-#define ETL_VERSION_PATCH 0
+#define ETL_VERSION_PATCH 1
 
 #define ETL_VERSION       ETL_STRING(ETL_VERSION_MAJOR) "." ETL_STRING(ETL_VERSION_MINOR) "." ETL_STRING(ETL_VERSION_PATCH)
 #define ETL_VERSION_W     ETL_WIDE_STRING(ETL_VERSION_MAJOR) L"." ETL_WIDE_STRING(ETL_VERSION_MINOR) L"." ETL_WIDE_STRING(ETL_VERSION_PATCH)
diff --git a/library.json b/library.json
index 792e9e37..303c5d4b 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library",
-  "version": "20.43.0",
+  "version": "20.43.1",
   "authors": {
     "name": "John Wellbelove",
     "email": "john.wellbelove@etlcpp.com"
diff --git a/library.properties b/library.properties
index d328465c..cc7168ad 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library
-version=20.43.0
+version=20.43.1
 author= John Wellbelove <john.wellbelove@etlcpp.com>
 maintainer=John Wellbelove <john.wellbelove@etlcpp.com>
 license=MIT
diff --git a/support/Release notes.txt b/support/Release notes.txt
index a5a3050f..f2f5105a 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -5,6 +5,9 @@ Updates:
 #1170 Place a typed pointer instead of a bool into etl::typed_storage
       Modified the storage used by etl::typed_storage to be a union, along the lines of etl::optional.
       Added etl::typed_storage_ext to wrap external storage.
+#1176 Fix GCC __builtin_memcpy errors when compiling with -O2 optimisation
+#1180 Duplicate definition of const_reference in etl::const_set_ext
+
 
 ===============================================================================
 20.43.0