diff --git a/arduino/library-arduino.json b/arduino/library-arduino.json
index 20ff8c86..02d871ce 100644
--- a/arduino/library-arduino.json
+++ b/arduino/library-arduino.json
@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library ETL",
-  "version": "20.46.0",
+  "version": "20.46.1",
   "authors": {
     "name": "John Wellbelove",
     "email": "john.wellbelove@etlcpp.com"
diff --git a/arduino/library-arduino.properties b/arduino/library-arduino.properties
index 5eae7e44..2d433107 100644
--- a/arduino/library-arduino.properties
+++ b/arduino/library-arduino.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library ETL
-version=20.46.0
+version=20.46.1
 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 962e55a6..517368af 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 46
-#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 bc4f1da9..45676189 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library",
-  "version": "20.46.0",
+  "version": "20.46.1",
   "authors": {
     "name": "John Wellbelove",
     "email": "john.wellbelove@etlcpp.com"
diff --git a/library.properties b/library.properties
index 7f1ffc3a..7e2f989e 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library
-version=20.46.0
+version=20.46.1
 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 12664b63..3398c650 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,4 +1,10 @@
 ===============================================================================
+20.46.1
+
+#1317 etl multiset iterator invalidation during erase leads to incorrect sorted order in depth first traversal
+      Also fixed multimap erase and added tests for both.
+
+===============================================================================
 20.46.0
 
 #1257 Fix year_month arithmetic and correct chrono API behavior
diff --git a/version.txt b/version.txt
index cec3020e..4d51fa8f 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-20.46.0
+20.46.1