diff --git a/include/etl/version.h b/include/etl/version.h
index 4efd7bdb..3821b26d 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -38,7 +38,7 @@ SOFTWARE.
 ///\ingroup utilities
 
 #define ETL_VERSION_MAJOR 20
-#define ETL_VERSION_MINOR 19
+#define ETL_VERSION_MINOR 20
 #define ETL_VERSION_PATCH  0
 #define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) "." ETL_STRINGIFY(ETL_VERSION_MINOR) "." ETL_STRINGIFY(ETL_VERSION_PATCH)
 #define ETL_VERSION_W     ETL_STRINGIFY(ETL_VERSION_MAJOR) L"." ETL_STRINGIFY(ETL_VERSION_MINOR) L"." ETL_STRINGIFY(ETL_VERSION_PATCH)
diff --git a/library.json b/library.json
index 9729d2ac..270e34a4 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "ETL Embedded Template Library",
-  "version": "20.19.0",
+  "version": "20.20.0",
   "author s": {
     "name": "John Wellbelove",
     "email": "john.wellbelove@etlcpp.com"
diff --git a/library.properties b/library.properties
index 0e43a057..c3d3d74e 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library ETL
-version=20.19.0
+version=20.20.0
 author= John Wellbelove <john.wellbelove@etlcpp.com>
 maintainer=John Wellbelove <john.wellbelove@etlcpp.com>
 license=MIT
diff --git a/meson.build b/meson.build
index 9194bba9..9f708c8b 100644
--- a/meson.build
+++ b/meson.build
@@ -8,7 +8,7 @@ project('etl',
         'cpp_std=c++17', 'build.cpp_std=c++17',
     ],
     meson_version: '>=0.54.0',
-    version: '20.19.0'
+    version: '20.20.0'
 )
 
 compile_args = []
diff --git a/support/Release notes.txt b/support/Release notes.txt
index f74589a2..0bcee639 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,3 +1,15 @@
+===============================================================================
+20.20.0
+Updated container 'insert' and 'erase' to C++11 style const_iterator parameters. (#463)
+Fixed container template function overload abiguity. (#466)
+Harmonize copy ctor and assignment for etl::delegate. (#465)
+Added constexpr support for etl::enum_type. (#462)
+Added 'make' functions to construct containers.
+Remove unnecessary casts that causes warnings. (#461)
+Added non-const string pointer overload. (#449)
+Changed != to < in etl::ipool to get rid of erroneous clang-tidy nullptr dereference warning. (#457)
+Added ifdef guard for MSVC pragma (#455)
+
 ===============================================================================
 20.19.0
 Updates to etl::delegate. Added more constexpr and set() functions.