The Magic Draw 2024x documentation sates there are C++ Code Engineering supported dialects:

Supported dialects 
C++ code engineering supports three dialects, set in our modelling tools:

ANSI – conform to ISO/IEC 14882 specification for C++ programming language
CLI – conform to ECMA-372 C++/CLI Language Specification base on Microsoft Visual studio 2005
Managed – conform to Managed Extensions for C++ Specification introduced in Microsoft Visual Studio 2003

However it does not indicate which versions of ISO/IEC 14882 are supported normally this is done with a : and a year as part of the Standard name as below.

Year ISO/IEC Standard Informal name
1998 14882:1998 C++98
2003 14882:2003 C++03
2011 14882:2011 C++11, C++0x
2014 14882:2014 C++14, C++1y
2017 14882:2017 C++17, C++1z
2020 14882:2020 C++20, C++2a
2023 C++23
Can you please confirm which language versions of ISO/IEC 14882 are supported 

Can you please confirm which language versions of ISO/IEC 14882 are supported