I need to do CI with bleeding edge GCC and I finally decided to build the necessary container images for it:
cplusplus-ci/base – Ubuntu 24.04 + GCC 13/14, Clang 20/21
cplusplus-ci/latest – adds GCC 15 & trunk (built from source)
Perfect for matrix builds in GitHub Actions!
Example & details: https://github.com/mattkretz/cplusplus-ci
