Added in version 3.15.
Modules FindPython3, FindPython2 and FindPython use LOCATION for lookup strategy.
Starting with CMake 3.15, Modules FindPython3, FindPython2 and FindPython set value LOCATION for, respectively, variables Python3_FIND_STRATEGY, Python2_FIND_STRATEGY and Python_FIND_STRATEGY. This policy provides compatibility with projects that expect the legacy behavior.
The OLD behavior for this policy set value VERSION for variables Python3_FIND_STRATEGY, Python2_FIND_STRATEGY and Python_FIND_STRATEGY.
This policy was introduced in CMake version 3.15. It may be set by cmake_policy() or cmake_minimum_required(). If it is not set, CMake does not warn, and uses OLD behavior.
Note
The OLD behavior of a policy is deprecated by definition and may be removed in a future version of CMake.
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Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.31/policy/CMP0094.html