AFP versions 3.0 and greater rely exclusively on TCP/IP (port 548) for establishing communication, supporting AppleTalk only as a service discovery protocol.
The AFP 2.x family supports both TCP/IP (using Data Stream Interface) and AppleTalk for communication and service discovery.
In client operating systems, AFP was called "Personal File Sharing", and supported up to ten simultaneous connections.
[3] Changes made in AFP since version 3.0 represent major advances in the protocol, introducing features designed specifically for Mac OS X clients.
[4][6] AFP 3.2 adds support for Access Control Lists and extended attributes in Mac OS X Server 10.4.
Maximum share point size is at least 16 terabytes, although Apple has not published a limits document for Mac OS X Server 10.4.
Apple implemented AFP 3.2 support in their AirPort Time Capsule wireless router device.
macOS also offers Personal File Sharing, a "light" implementation of the current version of AFP.