CMake/Help/release/dev/cxx_std_26.rst

cxx_std_26
----------

* C++26 compiler modes may now be specified via the :prop_tgt:`CXX_STANDARD`,
  :prop_tgt:`CUDA_STANDARD`, :prop_tgt:`HIP_STANDARD`, or
  :prop_tgt:`OBJCXX_STANDARD` target properties,
  or via the :manual:`Compile Features <cmake-compile-features(7)>`
  functionality's ``cxx_std_26`` meta-feature.