It's even the advanced edition in the later packaging.
APL2/2 Advanced provides the following additional features:
o Interfaces to the DB2/2 database system
o TCP/IP Socket Interface
o Cooperative processing across a TCP/IP network, providing the
capability to:
- Share variables with MVS, VM, AIX/6000, OS/2, and Solaris
- Share variables with remote auxiliary processors for
access to graphical user interface (GUI), database, and
other system services
- Run a session manager communicating with an APL2
interpreter on a remote platform
- Distribute parts of an application across multiple
machines
- Build a network server