diff --git a/include/etl/cstring.h b/include/etl/cstring.h
index 1d073417..6812e2a8 100644
--- a/include/etl/cstring.h
+++ b/include/etl/cstring.h
@@ -251,6 +251,15 @@ namespace etl
     }
   };
 #endif
+
+  //***************************************************************************
+  /// Make string from string literal or char array
+  //***************************************************************************
+  template<const size_t MAX_SIZE>
+  etl::string<MAX_SIZE - 1> make_string(const char (&text) [MAX_SIZE])
+  {
+    return etl::string<MAX_SIZE - 1>(text);
+  }
 }
 
 #include "private/minmax_pop.h"
diff --git a/include/etl/u16string.h b/include/etl/u16string.h
index 4ef1d146..f52417eb 100644
--- a/include/etl/u16string.h
+++ b/include/etl/u16string.h
@@ -251,6 +251,15 @@ namespace etl
     }
   };
 #endif
+
+  //***************************************************************************
+  /// Make u16string from UTF-8 string literal or char16_t array
+  //***************************************************************************
+  template<const size_t MAX_SIZE>
+  etl::u16string<MAX_SIZE - 1> make_string(const char16_t (&text) [MAX_SIZE])
+  {
+    return etl::u16string<MAX_SIZE - 1>(text);
+  }
 }
 
 #include "private/minmax_pop.h"
diff --git a/include/etl/u32string.h b/include/etl/u32string.h
index 64112c49..3eec812e 100644
--- a/include/etl/u32string.h
+++ b/include/etl/u32string.h
@@ -251,6 +251,15 @@ namespace etl
     }
   };
 #endif
+
+  //***************************************************************************
+  /// Make u32string from UTF-16 string literal or char32_t array
+  //***************************************************************************
+  template<const size_t MAX_SIZE>
+  etl::u32string<MAX_SIZE - 1> make_string(const char32_t (&text) [MAX_SIZE])
+  {
+    return etl::u32string<MAX_SIZE - 1>(text);
+  }
 }
 
 #include "private/minmax_pop.h"
diff --git a/include/etl/version.h b/include/etl/version.h
index 596fd2bc..3f91e496 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -38,7 +38,7 @@ SOFTWARE.
 ///\ingroup utilities
 
 #define ETL_VERSION_MAJOR 15
-#define ETL_VERSION_MINOR  1
+#define ETL_VERSION_MINOR  2
 #define ETL_VERSION_PATCH  0
 
 #define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) "." ETL_STRINGIFY(ETL_VERSION_MINOR) "." ETL_STRINGIFY(ETL_VERSION_PATCH)
diff --git a/include/etl/wstring.h b/include/etl/wstring.h
index 6eab06a6..9b28eef2 100644
--- a/include/etl/wstring.h
+++ b/include/etl/wstring.h
@@ -252,6 +252,15 @@ namespace etl
     }
   };
 #endif
+
+  //***************************************************************************
+  /// Make wstring from wide string literal or wchar_t array
+  //***************************************************************************
+  template<const size_t MAX_SIZE>
+  etl::wstring<MAX_SIZE - 1> make_string(const wchar_t (&text) [MAX_SIZE])
+  {
+    return etl::wstring<MAX_SIZE - 1>(text);
+  }
 }
 
 #include "private/minmax_pop.h"
diff --git a/library.json b/library.json
index ba576b23..477ce514 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "Embedded Template Library",
-  "version": "15.1.0",
+  "version": "15.2.0",
   "authors": {
     "name": "John Wellbelove",
     "email": "<john.wellbelove@etlcpp.com>"
diff --git a/library.properties b/library.properties
index 43611b42..3bb62455 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Embedded Template Library
-version=15.1.0
+version=15.2.0
 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 bf5b38b7..fe0d467e 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,3 +1,8 @@
+===============================================================================
+15.2.0
+Added function adaptors and removed built-in sort functions from indirect_vector.
+Added etl::make_string for all string types.
+
 ===============================================================================
 15.1.0
 Fixes to the conditional compilation of choose_tag_types.h and
diff --git a/test/vs2017/etl.vcxproj b/test/vs2017/etl.vcxproj
index 81664aaa..0481a010 100644
--- a/test/vs2017/etl.vcxproj
+++ b/test/vs2017/etl.vcxproj
@@ -941,6 +941,7 @@
     <ClCompile Include="..\test_indirect_vector.cpp" />
     <ClCompile Include="..\test_indirect_vector_external_buffer.cpp" />
     <ClCompile Include="..\test_list_shared_pool.cpp" />
+    <ClCompile Include="..\test_make_string.cpp" />
     <ClCompile Include="..\test_multi_array.cpp" />
     <ClCompile Include="..\test_no_stl_algorithm.cpp" />
     <ClCompile Include="..\test_array.cpp">
diff --git a/test/vs2017/etl.vcxproj.filters b/test/vs2017/etl.vcxproj.filters
index e697a858..47a5caf4 100644
--- a/test/vs2017/etl.vcxproj.filters
+++ b/test/vs2017/etl.vcxproj.filters
@@ -1256,6 +1256,9 @@
     <ClCompile Include="..\test_indirect_vector_external_buffer.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\test_make_string.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\library.properties">
diff --git a/todo.txt b/todo.txt
index 2fda3c72..bf922e23 100644
--- a/todo.txt
+++ b/todo.txt
@@ -1,7 +1,7 @@
 List of ideas for future development.
 
-delegate_timer (Variant of callback_timer)
-
 delegate_state_chart (Variant of state_chart)
 
 Finish secure containers
+
+Finish move semantics for all containers