code: public Version toLowerCase() {
          return new Version(this.major, this.minor, this.patch,
                  copyCase(this.preReleaseParts, false),
                  copyCase(this.buildMetaDataParts, false));
      }
docs: Returns a new Version where all identifiers are converted to lower case letters.
  
  @return A new version with lower case identifiers.
  @since 1.1.0