9.4.0

• Fixed typo errors.
• Removed unnecessary functions.
• Reduced file IO read.

9.3.1

• Added functions to compress and expand IPv6 address.
• Fixed typo in example.php.

9.3.0

Added ipv4ToCidr, cidrToIpv4, ipv6ToCidr, cidrToIpv6 functions.

9.2.1

Fixed Teredo IP address parser.

9.2.0

• Added supports for address type and category fields.
• Added exception handling for incorrect BIN database.

9.1.0

Added Country class to query country information.

9.0.1

Fixed filename case-sensitivity issue under Linux environment.

9.0.0

Updated file structures to use the latest standards.

8.3.0

Added common tools for IP calculation.

8.2.3

Removed public const to support an earlier version of PHP.