On Sun, Nov 16, 2025 at 10:37:44AM -0600, Segher Boessenkool wrote:
> On Sun, Nov 16, 2025 at 12:06:57AM +0100, Jakub Jelinek wrote:
> > On Mon, Nov 03, 2025 at 01:34:28PM -0500, Marek Polacek via Gcc wrote:
> > > I would like us to declare that C++20 is no longer experimental and
> > > change the default dialect to gnu++20.
>
> Defaulting to something that is just a few years old is super
> aggressive, esp. because not many people will test building with
> something else, although we still support it (building a cross with a
> slightly older compiler, for example).
>
> So let's at least not got any further than this! Document that five
> years is the limit, even?
This is not bumping the minimum version that gcc can be built with,
that stays to be C++14.
This is about what C++ standard g++ uses when users don't specify
any -std= options.
E.g. for C we default to C23, which is 2 years old. For C++ we currently
default to C++17, which is 8 years old.
Jakub
