Hello, I work on a library intended to compiled from source on a wide variety of platforms.
One open question I have is: When are versions of clang considered no longer supported? That may help to determine when it is OK to drop testing for older versions of clang.
gcc documents “Supported Releases” on the homepage. Is there equivalent documentation for clang?
Due to limited resources driving LLVM community releases, we generally only make patch releases for the latest LLVM release; we don’t do extended support for older releases. See How To Release LLVM To The Public — LLVM 16.0.0git documentation
That said, most people don’t download clang releases from llvm.org; vendors releasing clang-based compilers have different support cycles.