Is it possible to updrade ThirdParty/fmt to the latest version?

This is not an error, just a warning and relates to fmt.

Building with Microsoft Visual Studio Community 2022 (64-bit) - Current Version 17.8.1 generates this warning if the C++17 standard is enabled:

stdext::checked_array_iterator<T *>::iterator_category': warning STL4043: stdext::checked_array_iterator, stdext::unchecked_array_iterator, and related factory functions are non-Standard extensions and will be removed in the future. std::span (since C++20) and gsl::span can be used instead. You can define _SILENCE_STDEXT_ARR_ITERS_DEPRECATION_WARNING or _SILENCE_ALL_MS_EXT_DEPRECATION_WARNINGS to suppress this warning.

If you search on STL4043 you will find this MSVC is deprecating stdext::checked_array_iterator #3540 the fix seems to be to just upgrade fmt to 10.1 or later. This seems to confirm that upgrading fmt will silence this: Update fmt version to 10.1.0 #12411