• Java 11 or greater is now required.
• Apache HttpClient has been replaced with java.net.http.HttpClient.
• The close() method on WebServiceClient is now deprecated. It
  no longer does anything.
• On WebServiceClient.Builder:
  • connectTimeout(int) has been deprecated in favor of
    connectTimeout(Duration).
  • readTimeout(int) has been deprecated in favor of
    requestTimeout(Duration).
  • proxy(Proxy) has been deprecated in favor of proxy(ProxySelector).
• On HttpException and InvalidRequestException, getUrl() has been
  deprecated in favor of getUri(). Constructors that took a URL have
  been replaced with the equivalent taking a URI.
• Deprecated constructors on model and trait classes were removed.
• Model data types were updated to better reflect database data types. In
  particular:
  • getGeoNameId() on City, Continent, Country, RepresentedCountry,
    and Subdivision now returns a Long rather than an Integer.
  • getAutonomousSystemNumber() on AsnResponse and Traits now returns
    a Long rather than an Integer.