if nextVersion.Major == 2 {
		storageVersion = storageEtcd2
	}
	return &EtcdVersionPair{version: nextVersion, storageVersion: storageVersion}
}

// ParseSupportedVersions parses a list of etcd versions.
func ParseSupportedVersions(list []string) (SupportedVersions, error) {
	var err error
	versions := make(SupportedVersions, len(list))
	for i, v := range list {

	}

	if opts.etcdServerArgs == "" {
		opts.etcdServerArgs = fallbackToEnvWithDefault("etcd-server-extra-args", etcdServerArgsEnv, "")
	}

	if opts.supportedVersions, err = ParseSupportedVersions(opts.bundledVersions); err != nil {
		return fmt.Errorf("failed to parse --bundled-versions: %v", err)
	}

	if err := validateBundledVersions(opts.supportedVersions, opts.binDir); err != nil {

	return pair
}

// mustParseSupportedVersions parses a comma separated list of etcd versions or panics if the parse fails.
func mustParseSupportedVersions(list []string) SupportedVersions {
	versions, err := ParseSupportedVersions(list)
	if err != nil {
		panic(err)
	}
	return versions