What's new for V5R4

This topic highlights some changes to the Socket programming for V5R4.

Start of changeThe support for the poll() API is added. The poll() API can be used to determine when the connection is completed.End of change

Start of changeThe multicasting support for the AF_INET6 address family is added. New socket options are available to control this IPv6 multicasting support. See setsockopt() for more details on these options.End of change

Start of changeIPv6 is supported over all Ethernet adapters. Previously IPv6 support was limited to the 2838 Ethernet Adapter. Now IPv4, IPv6, and PPPoE can all be used on the same adapter.End of change

Start of changeA new cryptographic hardware card, 4764 Cryptographic Coprocessor, is supported when you want to use SSL with the cryptographic hardware.End of change

How to see what's new or changed

To help you see where technical changes have been made, this information uses:
  • The Start of change image to mark where new or changed information begins.
  • The End of change image to mark where new or changed information ends.

To find other information about what's new or changed this release, see the Memo to users.