Why the C++ version is so old (please refer to the screen shot, it is 10.2)? The latest version is now 23 and I need at least version 11. How can I upgrade it? Thanks.
The screenshot shows the include directories provided by the toolchain. The number there refers to the GCC version and not the language standard. If you need a newer gcc, you would need to check if your platform vendor provides one.
The language standard version (e.g. C++11 or C++23) can be configured via VS project settings (not VisualGDB Project Properties) -> C/C++-> Advanced -> Language Standard.