diff --git a/CMakeLists.txt b/CMakeLists.txt
index a113d69abe4ec113d47c94765909354359d13f60..c2b77aefa22054a54b3a0715dc67274c1f00590c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,8 +4,8 @@ cmake_minimum_required (VERSION 2.6)
 set(CMAKE_VERBOSE_MAKEFILE TRUE)
 
 set(MAJOR_VERSION "1")
-set(MINOR_VERSION "19")
-set(PATCH_VERSION "5")
+set(MINOR_VERSION "20")
+set(PATCH_VERSION "0")
 set(VERSION "${MAJOR_VERSION}.${MINOR_VERSION}.${PATCH_VERSION}")
 
 # check for 64 bit
diff --git a/ReleaseNotes.txt b/ReleaseNotes.txt
index f5e3ea777738c4dfaef0516b71dc7a94e3e4fb70..a4c64d3c0608e7d8b5230a95370aaf263c7bc766 100644
--- a/ReleaseNotes.txt
+++ b/ReleaseNotes.txt
@@ -1,6 +1,6 @@
 YAT history file
 
-1.19.6 (2023/mm/dd)
+1.20.0 (2023/04/05)
 ===================
 
 Fixes
@@ -10,18 +10,24 @@ Fixes
 
 Additions
     classes CPlugIn, CPlugInManager
-    New pure-C plug-ins manager
+    New C-language plug-ins support
+    -> see <yat/plugin/CPlugIn.h>, <yat/plugin/CPlugInManager.h>,
+           <yat/plugin/CPlugInSymbols.h>
 
     class Format
-        operator%() defined in order to shorter the syntax used to pass format
+        new operator%() defined in order to shorter the syntax used to pass format
         arguments
-        cget() return formatted string as const char*
+        ne method cget() that return formatted string as const char*
     -> see <yat/utils/String.h>
 
     Log functions
-        operator,() defined in order to shorter the syntax used to pass format
-        arguments
+        new operator,() defined in order to shorter the syntax used to pass format
+        arguments. operator % is also available by inheritance from Format.
 
+    class String
+        new method h128_t h128() that return the a 128 bits hash value using an
+        high-speed version of Fnv1a128 algorithm (https://github.com/3F/Fnv1a128)
+    -> see <yat/utils/String.h>
 
 1.19.5 (2022/12/15)
 ===================
diff --git a/pom.xml b/pom.xml
index 9f7b963c1ecd5df0e5f9bc899a74c0cf49f83287..cb30648ddd908e766ef0cbc707c7fa59f99f448b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
   </parent>
   <groupId>fr.soleil.lib</groupId>
   <artifactId>YAT-${aol}-${library}-${mode}</artifactId>
-<version>1.19.6-SNAPSHOT</version>
+<version>1.20.0</version>
   <packaging>nar</packaging>
   <name>YAT</name>
   <description>Yet Another Toolkit Library</description>
diff --git a/pom_64.xml b/pom_64.xml
index 1577a1e3cb14abd2d668ef69c6ef19a41b9e2ace..4c8aeaaf9e523094f0d6527ca02fb3821fb6daa1 100644
--- a/pom_64.xml
+++ b/pom_64.xml
@@ -10,7 +10,7 @@
 
   <groupId>fr.soleil.lib</groupId>
   <artifactId>YAT-amd64-Linux-gcc-${library}-${mode}</artifactId>
-  <version>1.19.5</version>
+  <version>1.20.0</version>
 
   <packaging>nar</packaging>
   <name>YAT</name>
diff --git a/pom_64_Win7_shared.xml b/pom_64_Win7_shared.xml
index c3769055a4af98e780c9116f6819e83bfbe65bd1..868c6705207fc3a9949197b402e8155c12787bc0 100644
--- a/pom_64_Win7_shared.xml
+++ b/pom_64_Win7_shared.xml
@@ -10,7 +10,7 @@
 
   <groupId>fr.soleil.lib</groupId>
   <artifactId>YAT-${aol}-shared-${mode}</artifactId>
-  <version>1.19.5</version>
+  <version>1.20.0</version>
 
   <packaging>nar</packaging>
   <name>YAT</name>