CMAKE_PROJECT_VERSION_TWEAK
The tweak version of the top level project.
This variable holds the tweak version of the project as specified in the top level CMakeLists.txt file by a project() command. Please see CMAKE_PROJECT_VERSION documentation for the behavior when multiple project() commands are used in the sources.
© 2000–2020 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.17/variable/CMAKE_PROJECT_VERSION_TWEAK.html