logDeprecation(7);
        return DEFAULT_SCHEME;
    }

    /**
     * Returns the MAJOR.MINOR.MICRO.PATCH-QUALIFIER scheme.
     */
    public static Scheme withPatchNumber() {
        logDeprecation(7);
        return PATCH_SCHEME;
    }

    public static VersionNumber parse(String versionString) {
        logDeprecation(8);

     */
    public static Scheme scheme() {
        return DEFAULT_SCHEME;
    }

    /**
     * Returns the MAJOR.MINOR.MICRO.PATCH-QUALIFIER scheme.
     */
    public static Scheme withPatchNumber() {
        return PATCH_SCHEME;
    }

    public static VersionNumber parse(String versionString) {
        return DEFAULT_SCHEME.parse(versionString);
    }

    @Nullable