diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index b55676b..9c00206 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,8 +5,13 @@ Change Log
 Notable project changes in various releases.
 
 
-Unreleased
-==========
+1.1
+===
+
+Added
+-----
+
+* Method 'free' implemented to release the MPI-communicator
 
 
 1.0
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a9581ff..8de8fc7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ include(MpiFxUtils)
 
 include(${CMAKE_CURRENT_SOURCE_DIR}/config.cmake)
 
-project(MpiFx VERSION 1.0 LANGUAGES Fortran)
+project(MpiFx VERSION 1.1 LANGUAGES Fortran)
 
 setup_build_type()
 
diff --git a/doc/doxygen/Doxyfile b/doc/doxygen/Doxyfile
index cf3eac9..045fac5 100644
--- a/doc/doxygen/Doxyfile
+++ b/doc/doxygen/Doxyfile
@@ -32,7 +32,7 @@ PROJECT_NAME           = "MpiFx"
 # This could be handy for archiving the generated documentation or
 # if some version control system is used.
 
-PROJECT_NUMBER = "1.0"
+PROJECT_NUMBER = "1.1"
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer
diff --git a/doc/sphinx/conf.py b/doc/sphinx/conf.py
index e73f6ff..35addeb 100644
--- a/doc/sphinx/conf.py
+++ b/doc/sphinx/conf.py
@@ -45,10 +45,10 @@
 # built documents.
 #
 # The short X.Y version.
-version = '1.0'
+version = '1.1'
 
 # The full version, including alpha/beta/rc tags.
-release = '1.0'
+release = '1.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.