Development build of main (4eb60e0). It is not the latest release: sushi update, the built-in update check and Homebrew stay on v1.5.1 and never offer it. Ad-hoc signed and not notarized, like every sushi release.
To try it:
shasum -a 256 -c sushi-bin-macos-arm64.tar.gz.sha256
tar -xzf sushi-bin-macos-arm64.tar.gz
xattr -dr com.apple.quarantine sushi-macos-arm64
./sushi-macos-arm64/sushi --versionSince v1.5.1, among other changes: a content-addressed SSD prefix cache that writes much less, a per-model YaRN context-extension setting for Qwen models, values the server cannot honour are refused by name instead of clamped, a fix for a reload race that could load a model twice, and many web page fixes.