README Instructions for make appear to be incorrect. I needed to run SPREAD_VERSION=v1.0.0 make build instead of make build/spread.
Why are the binaries not available to download directly for the latest release?
README Instructions for installation from brew are also outdated. brew install spread-versioning should be replaced with brew install spread.
Documentation has the same outdated instructions: https://redspread.readme.io/docs/getting-started