New 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. Use the cmake_policy() command to set it to OLD or NEW explicitly. Unlike many policies, CMake version 3.19.0-rc3 does not warn when this policy is not set and simply uses the 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/v3.19/policy/CMP0094.html