C++Builder has been falling very far behind, compiler-wise, to the opensource alternatives.
And the IDE features have been below standard.
David Millington gave a preview look at the progress made so far.
(Unofficial video … I missed a bit at the start 
… may still be uploading for a bit)
Good to see C++ Builder getting some love.
Most of the info was included in the following post
She broke the keyboard…
It is unlikely that the new versions will catch up with the opensource alternatives. Because these alternatives will develop faster.
During the Q&A I asked …
Q: What version of clang equivalent … and is there any way to see the compiler tracking the regular updates in clang versions?
A: Definitely - that’s the plan!
(Clang 15 initially.)