• PHP 5.6 or greater is now required.
• The network property was added to GeoIp2\Record\Traits,
  GeoIp2\Model\AnonymousIp, GeoIp2\Model\Asn,
  GeoIp2\Model\ConnectionType, Geoip2\Model\Domain,
  and GeoIp2\Model\Isp. This is a string in CIDR format representing the
  largest network where all of the properties besides ipAddress have the
  same value.
• Updated documentation of anonymizer properties - isAnonymousVpn
  and isHostingProvider - to be more descriptive.
• The userCount property was added to GeoIp2\Record\Traits. This is an
  integer which indicates the estimated number of users sharing the
  IP/network during the past 24 hours. This output is available from GeoIP2
  Precision Insights.
• The staticIpScore property was added to GeoIp2\Record\Traits. This is
  a float which indicates how static or dynamic an IP address is. This
  output is available from GeoIP2 Precision Insights.