Ruby 3.3.11 & 3.3.12 is missing

[thompson-tomo]

I am currently using my mise.toml to define the min version of ruby we do development. Our rule is the latest patch of the oldest minor/major version still maintained. This means 3.3.12. However it appears that both 3.3.12 & even 3.3.11 is missing from the releases and as such this is resulting in slow installs for us.

this version is used by both our ci & dev container.

[jdx]

Thanks for the report! Both versions are actually published, with prebuilt macOS and x86_64/arm64 Linux (YJIT and no-YJIT) tarballs:

• 3.3.11: 3.3.11-5
• 3.3.12: 3.3.12-1

On mise 2026.9.12, mise install ruby@3.3.12 downloads the prebuilt binary for me. If mise can't find a prebuilt binary, it quietly falls back to compiling from source. That's probably why your installs are slow. The likely causes in CI or a dev container:

1. GitHub API rate limiting. mise finds the release through api.github.com. Unauthenticated requests from shared CI IPs hit the rate limit quickly, and mise then compiles instead. Make sure GITHUB_TOKEN (or MISE_GITHUB_TOKEN) is set in both CI and the container.
2. musl or Alpine base images. The Linux builds are glibc-only (manylinux2014), so Alpine-based images always compile.
3. An older mise version. Very old versions don't know about the -N build-revision tags.

To make a lookup failure show up instead of silently compiling, set MISE_RUBY_COMPILE=false (or run mise settings ruby.compile=false). mise will then error out when it can't find a prebuilt binary.

If none of that fixes it, could you share:

• the output of MISE_DEBUG=1 mise install ruby@3.3.12 (the lines mentioning jdx/ruby or precompiled are enough)
• mise --version
• the base image and OS of the CI runner and dev container

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