PROJECT_COMPAT_VERSION
Added in version 4.3.
Value given to the COMPAT_VERSION option of the most recent call to the project() command, if any. To obtain the compatibility version of the top level project, see the CMAKE_PROJECT_COMPAT_VERSION variable.
© 2000–2026 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/latest/variable/PROJECT_COMPAT_VERSION.html
