IBM released the following announcement letter today: http://www-01.ibm.com/common/ssi/cgi-bin/ssialias?infotype=an&subtype=ca&appname=gpateam&supplier=897&letternum=ENUS114-009
Included in this letter are two Statements of Direction related to z/OS Communications Server:
Last z/OS release to provide software support for several TCP/IP device drivers: z/OS V2.1 is planned to be the last z/OS release to provide software support for several TCP/IP device drivers. IBM recommends that customers using any of these device drivers migrate to more recent device types, such as OSA-Express QDIO and HiperSockets™. The TCP/IP device drivers planned to be removed are: Asynchronous Transfer Mode (ATM), Common Link Access To Workstation (CLAW), HYPERChannel, Channel Data Link Control (CDLC), SNALINK (both LU0 and LU6.2), and X.25.
Note:Support for SNA device drivers is not affected.
Removal of SMTPD NJE Mail Gateway and Sendmail mail transports from z/OS Communications Server:It is the intention of IBM to remove the Simple Mail Transport Protocol Network Job Entry (SMTPD NJE) Mail Gateway and Sendmail mail transports from z/OS Communications Server in the future. If you use the SMTPD NJE Gateway to send mail, IBM recommends you use the existing CSSMTP SMTP NJE Mail Gateway instead. CSSMTP provides significant functional and performance improvements. The Sendmail client program can also be used to send mail messages; a replacement function using CSSMTP as the SMTP transport is planned. This function will be designed so that it does not require application programming changes. No replacement function is planned in z/OS Communications Server to support using SMTPD or Sendmail as a (SMTP) server for receiving mail for delivery to local TSO/E or z/OS UNIX System Services user mailboxes, or for forwarding mail to other destinations.