diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index fa642731e..474f72552 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,5 +1,9 @@
 CHANGE LOG: Zinc Library
 
+v4.1.1
+Fix empty classifiers for Python packaging.
+Drop support for OS X Mountain Lion and below (last released 2015).
+
 v4.1.0
 Fix optimisation with conditional field applying partially to elements' nodes.
 Region read with single time is ignored with a warning for field value types not supporting time sequence.
diff --git a/CMakeLists.txt b/CMakeLists.txt
index f74b5e821..f61cb737a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -25,7 +25,7 @@ if(POLICY CMP0086)
 endif()
 
 # This is the project name and shows up in IDEs
-project(Zinc VERSION 4.1.0 LANGUAGES C CXX)
+project(Zinc VERSION 4.1.1 LANGUAGES C CXX)
 
 # Set this to the development release or release candidate version.
 set(Zinc_DEVELOPER_VERSION "")
diff --git a/tests/GTestChecks.cmake b/tests/GTestChecks.cmake
index edabbb047..9161905a2 100644
--- a/tests/GTestChecks.cmake
+++ b/tests/GTestChecks.cmake
@@ -23,16 +23,7 @@ IF(NOT GTEST_SUCCESS)
     SET(GTEST_THREAD_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
 ENDIF()
 
-
 IF(APPLE)
-    EXEC_PROGRAM(uname ARGS -v  OUTPUT_VARIABLE DARWIN_VERSION)
-    STRING(REGEX MATCH "[0-9]+" DARWIN_VERSION ${DARWIN_VERSION})
-    #MESSAGE(STATUS "DARWIN_VERSION=${DARWIN_VERSION}")
-    #DARWIN version 13 = Mac 0SX 10.9
-    IF(DARWIN_VERSION GREATER 12)
-        ADD_DEFINITIONS(-DGTEST_USE_OWN_TR1_TUPLE=1)
-    ENDIF ()
+    ADD_DEFINITIONS(-DGTEST_USE_OWN_TR1_TUPLE=1)
 ENDIF()
 
-
-