On Thu, Oct 12, 2023 at 4:48 PM Joe Perches <joe@xxxxxxxxxxx> wrote: > > Do older versions of clang-format ignore entries > they don't understand? Sadly, no, that is the reason we keep it at the minimum. However, I just took a look again at it, and I see that such support was added to LLVM 12, the `--Wno-error=unknown` flag in commit f64903fd8176 ("Add -Wno-error=unknown flag to clang-format."). So this means that the minimum is bumped to 12, we could in principle use newer options. I think the downsides are that users will need to pass the flag (potentially in e.g. their IDE or similar) and that formatting could be potentially chaotic depending on the options ignored. I guess particular subsystems could agree on which version to use. Cheers, Miguel