unch v0.3.9

unch v0.3.9

v0.3.9 is an install-reliability and CLI-polish release. It keeps the local-first indexing and search flow intact while making published installers safer, fixing the latest install path so it stays on release assets, adding a simple CLI version check, and simplifying the public embedding-model tuning surface.

Highlights

• shell and PowerShell installers now verify downloaded release assets against the published checksums.txt file before unpacking
• unversioned installer paths now prefer GitHub releases/latest assets instead of unexpectedly falling back to go install
• install smoke coverage now exercises the installer flow on macOS, Windows, Ubuntu, Debian, Arch, and NixOS-like Linux environments
• unch --version, unch -version, and unch version now report the CLI build version, and release binaries inject the release tag into that output
• index and search no longer expose a separate --batch-size knob; --ctx-size remains the public override for model context sizing
• model install metadata now lives in a dedicated internal catalog, reducing duplication between runtime model profiles and install-time model resolution
• install docs now show the current macOS/Linux sudo sh -s -- -b ... flow, the Windows PATH note, and unch --version as a lightweight post-install verification step
• benchmark docs and CI summary flow were tightened up so the checked-in suites are described as unch regression tracking rather than cross-tool comparisons

Upgrade notes

• no index rebuild is required when upgrading from v0.3.8
• no remote index workflow migration is required for repositories already using unch-index.yml
• if you automated unch index or unch search with --batch-size, drop that flag and keep --ctx-size only when you need to override the model default
• you can verify the installed CLI with unch --version and unch --help
• if you install from source, use go install github.com/uchebnick/unch/cmd/unch@v0.3.9