diff --git a/CMakeLists.txt b/CMakeLists.txt
index a85fd91de..e37201086 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ if (CMAKE_VERSION GREATER_EQUAL "3.3")
   cmake_policy(SET CMP0167 NEW)
 endif ()  
 
-project(musrfit VERSION 1.10.0 LANGUAGES C CXX)
+project(musrfit VERSION 1.11.0 LANGUAGES C CXX)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
diff --git a/ChangeLog b/ChangeLog
index 8079b18b9..1d479d8cc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -12,6 +12,13 @@ or
 
 https://bitbucket.org/muonspin/musrfit
 
+Release of V1.11.0, 2026/05/28
+==============================
+
+add to the mupp/Qt6 version the option to handle variables not only via the 
+Spirit/X3 interface, but also via Python3. It requires that ROOT is compiled 
+with Python support. For details see the musrfit-manual section mupp. 
+
 Release of V1.10.0, 2026/02/21
 ==============================