2.1.1 - .exe handling for windows targets in go-build + go-release-binary go build only auto-appends .exe when -o is unset. The catalog templates always pass -o explicitly, so consumers adding windows/amd64 produced an extension-less binary that's unrunnable on Windows without manual rename. Both templates now append .exe when GOOS=windows. No template inputs change. Consumers on 2.1.0 can bump to 2.1.1 with no other edits.