code: public Version incrementPatchVersion(String preRelease) {
          return new Version(
              normal.incrementPatch(),
              VersionParser.parsePreRelease(preRelease)
          );
      }
docs: Increments the patch version and appends the pre-release version.
  
  @param preRelease the pre-release version to append
  @return a new instance of the {@code Version} class
  @throws IllegalArgumentException if the input string is {@code NULL} or empty
  @throws ParseException when invalid version string is provided
  @throws UnexpectedCharacterException is a special case of {@code ParseException}