Yes, via https://docs.godotengine.org/en/4.1/contributing/development/cpp_usage_guidelines.html https://docs.godotengine.org/en/4.1/contributing/development...:

Yes, via https://docs.godotengine.org/en/4.1/contributing/development/cpp_usage_guidelines.html https://docs.godotengine.org/en/4.1/contributing/development...: > Since Godot 4.0, the C++ standard used throughout the codebase is a subset of C++17. > [...] > Prior to Godot 4.0, the C++ standard used throughout the codebase was C++03, with a handful of C++14 extensions.