Ollama's v0.23.3-rc1 fixes macOS 26 Metal library target leak

Ollama, the popular local AI model runner, has tagged v0.23.3-rc1, a release candidate that addresses a critical build issue on macOS. The bug, described as 'macOS 26 target leakage in v3 metallib', occurred when compiling Metal shaders using the MLX framework. Specifically, MLX compiles AIR objects with the requested minimum macOS version, but its final metallib step mistakenly uses the `metal` command instead of `metallib`. With the macOS 26 SDK, this can stamp the Metal v3 library with a macOS 26 deployment target, breaking compatibility with older macOS versions. The fix relinks the generated AIR files with `metallib` before installation until the upstream MLX issue is resolved.

This release is particularly relevant for developers running Ollama on cutting-edge macOS betas or those who build from source. While the patch is temporary (waiting for upstream MLX to correct the build pipeline), it ensures that Ollama continues to function correctly across macOS versions. The v0.23.3-rc1 tag includes the commit 421faa0, signed with GitHub's verified signature. Users on macOS should update to this release candidate to avoid deployment target mismatches that could cause Metal shader failures in local AI inference.