-----------------------------------------------------------------------------
File name:	UPDATE.TXT			Revision date:	1999.04.12
File author:	Ronald Andersson		Creation date:	1999.04.12
-----------------------------------------------------------------------------
During 1998 and early 1999 several developments have been made that make
STinG considerably more powerful than it previously was.  One such major
improvement is the implementation of a fully unblocking TCP_close call.

To use this mode an additional argument is needed by TCP_close, when it
is compiled with these STinG headers.  Use of old modes is still valid of
course, but you need to add ",NULL" at end of the TCP_close argument list
then, so that the expression will fit the function prototype in TRANSPRT.H.

NB:  The function remains fully compatible with old clients, or any new
     ones compiled with the old STinG or STiK DEV-KITs.  It is only for
     programmers using the new STinG TRANSPRT.H that new usage is needed,
     as it must be to allow the new TCP_close modes to function.

Another new feature, existing already in the previous release, is that the
CIB structure is defined with a substructure named CAB as one element, and
replacing four of those in the old definition. Some people have mistakenly
stated that this is an incompatibility. Let me assure you, it is _not_ so.

NB:  The 'new' CIB definition is simply a new way to define exactly those
     elements that were defined before. The offsets to all elements remain
     compatible even with the oldest STiK versions, except that the oldest
     lacked some CIB elements added later both for STiK and for STinG. The
     'new' definition is thus only of interest to those who program with
     the new TRANSPRT.H of STinG.

You can find more information on all this in the STING.HYP document.
-----------------------------------------------------------------------------
End of file:	UPDATE.TXT
-----------------------------------------------------------------------------
