Function IsUnstableBuild

version/prop.go:216–232

IsUnstableBuild reports whether this is an unstable build. That is, whether its minor version number is odd.

()

// IsUnstableBuild reports whether this is an unstable build.
// That is, whether its minor version number is odd.
func IsUnstableBuild() bool {
	return isUnstableBuild.Get(func() bool {
		_, rest, ok := strings.Cut(Short(), ".")
		if !ok {
			return false
		}
		minorStr, _, ok := strings.Cut(rest, ".")
		if !ok {
			return false
		}
		minor, err := strconv.Atoi(minorStr)
		if err != nil {
			return false
		}
		return minor%2 == 1
	})
}

// osVariant returns the OS variant string for systems where we support
// multiple ways of running tailscale(d), if any.