func splitGopkgIn(path string) (prefix, pathMajor string, ok bool) {
	if !strings.HasPrefix(path, "gopkg.in/") {
		return path, "", false
	}
	i := len(path)
	if strings.HasSuffix(path, "-unstable") {
		i -= len("-unstable")
	}
	for i > 0 && ('0' <= path[i-1] && path[i-1] <= '9') {
		i--
	}
	if i <= 1 || path[i-1] != 'v' || path[i-2] != '.' {
		// All gopkg.in paths must end in vN for some N.

						EtcdVersion:    getEtcdVersion(v1Z0alpha2),
					},
				},
			},
			allowExperimental: true,
			errExpected:       false,
		},
		{
			name: "upgrade from an unstable version to an unstable version should be supported",
			vg: &fakeVersionGetter{
				clusterVersion:   v1Z0alpha1.String(),
				componentVersion: v1Z0alpha1.String(),
				kubeletVersion:   v1Y5.String(),

**not stable** and will likely change before the final 5.0.0 release.

If you have code that subclasses `okhttp3.mockwebserver.QueueDispatcher`, this update is not source
or binary compatible. Migrating to the new `mockwebserver3` package will fix this problem.

 *  New: DNS over HTTPS is now a stable feature of OkHttp. We introduced this as an experimental

    }

    /**
     * Can the generated build use new and unstable features?
     *
     * When enabled, the generated build will use new patterns, APIs or features that
     * may be unstable between minor releases. Use this if you'd like to try out the
     * latest features of Gradle.
     *
     * By default, init will generate a build that uses stable features and behavior.
     *
     * @since 7.3
     */

	CmdName string // "build", "install", "list", "mod tidy", etc.

	DebugActiongraph  string // -debug-actiongraph flag (undocumented, unstable)
	DebugTrace        string // -debug-trace flag
	DebugRuntimeTrace string // -debug-runtime-trace flag (undocumented, unstable)

	// GoPathError is set when GOPATH is not set. it contains an
	// explanation why GOPATH is unset.
	GoPathError   string
	GOPATHChanged bool

func (r *codeRepo) Versions(ctx context.Context, prefix string) (*Versions, error) {
	// Special case: gopkg.in/macaroon-bakery.v2-unstable
	// does not use the v2 tags (those are for macaroon-bakery.v2).
	// It has no possible tags at all.
	if strings.HasPrefix(r.modPath, "gopkg.in/") && strings.HasSuffix(r.modPath, "-unstable") {
		return &Versions{}, nil
	}

	p := prefix
	if r.codeDir != "" {
		p = r.codeDir + "/" + p
	}

	// If the first disconnected before the last connected, we likely had a network issue.
	if delta <= 0 {
		rx = 0
		errStr = "detected network disconnections, possibly an unstable network"
	}

	globalSiteNetPerfRX.Reset()
	return madmin.SiteNetPerfNodeResult{
		Endpoint:        "",
		TX:              r.n,
		TXTotalDuration: duration,
		RX:              uint64(rx),

      "github.com/gogo/protobuf": "unmaintained",
      "github.com/golang/mock": "unmaintained, archive mode",
      "github.com/google/gofuzz": "unmaintained, archive mode",
      "github.com/google/s2a-go": "cloud dependency, unstable",
      "github.com/google/shlex": "unmaintained, archive mode",
      "github.com/googleapis/enterprise-certificate-proxy": "references cloud dependencies",
      "github.com/googleapis/gax-go/v2": "references cloud dependencies",

	})
}

// Extension provides an extension mechanism for logs.
// This is essentially like https://pkg.go.dev/golang.org/x/exp/slog#Handler.
// This interface should be considered unstable; we will likely swap it for slog in the future and not expose zap internals.
// Returns a modified Core interface, and a Close() function.
type Extension func(c zapcore.Core) (zapcore.Core, func() error, error)

     */
    @Test
    void testCompareUuidVersionStringStream() {
        // this operation below fails with IAEx if comparison is unstable
        uuidVersionStringStream().map(this::newVersion).sorted().collect(toList());
    }

    private Stream<String> uuidVersionStringStream() {
        return Stream.of(