When can we hope to have LLVM 18 and GCC 14?

[FunMiles]

Output of brew config

N/A

Output of brew doctor

N/A

Description of issue

I am a C++ programmer and impatiently wanting to use C++23's "deducing this" feature. This feature is not supported in the current versions of clang++ and g++ from homebrew. However, clang++ 18 and g++ 14 do support it.
Both have been out a few months now. Is there any hope to get those to replace llvm 17 and gcc 13 as defaults in homebrew?

[Bo98]

Both have been out a few months now

GCC 14 is not out. LLVM 18 was released last month and is being worked on and will hopefully be finished soon.

[TejasSharma1729]

GCC 14 is out. It is visible in the beta version of Ubuntu 24.04, which I use via multipass --> sudo do-release-upgrade -d --> sudo apt install gcc-14 g++-14.

[SMillerDev]

Note: GCC 14 has not been released yet, so this document is a work-in-progress.

https://gcc.gnu.org/gcc-14/changes.html

[TejasSharma1729]

OK so I am to assume that I use a "beta" or "experimental" version in the beta, which hopefully will become a "release" by the time the main 24.04 is out then.

[Bo98]

Ubuntu 24.04 has a WIP version of GCC 14 built from a snapshot (https://gcc.gnu.org/pub/gcc/snapshots/) because GCC 14 is planned to be out around the same time as Ubuntu 24.04 and due to various code freezes Ubuntu needed to start preparing early or they wouldn't be able to ship it at all. You would have seen the same with gcc-12 with the last LTS, 22.04.

You can see how GCC 14 is marked as "development" on the homepage: https://gcc.gnu.org. The first stable version, GCC 14.1, will probably be released late April/early May.

[FunMiles]

LLVM 18.1.4 is now in homebrew. Thanks to those who made it happen.