CMAKE_PROJECT_VERSION --------------------- The version of the top level project. This variable holds the version of the project as specified in the top level CMakeLists.txt file by a :command:`project` command. In the event that the top level CMakeLists.txt contains multiple :command:`project` calls, the most recently called one from that top level CMakeLists.txt will determine the value that ``CMAKE_PROJECT_VERSION`` contains. For example, consider the following top level CMakeLists.txt: .. code-block:: cmake cmake_minimum_required(VERSION 3.0) project(First VERSION 1.2.3) project(Second VERSION 3.4.5) add_subdirectory(sub) project(Third VERSION 6.7.8) And ``sub/CMakeLists.txt`` with the following contents: .. code-block:: cmake project(SubProj VERSION 1) message("CMAKE_PROJECT_VERSION = ${CMAKE_PROJECT_VERSION}") The most recently seen :command:`project` command from the top level CMakeLists.txt would be ``project(Second ...)``, so this will print:: CMAKE_PROJECT_VERSION = 3.4.5 To obtain the version from the most recent call to :command:`project` in the current directory scope or above, see the :variable:`PROJECT_VERSION` variable.