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-<!-- =defdoc xpachanges xpachanges 1 -->
-<HTML>
-<HEAD>
-<TITLE>Changes For Users from XPA 1.0 and 2.0</TITLE>
-</HEAD>
-<BODY>
-
-<!-- =section xpachanges NAME -->
-<H2><A NAME="xpachanges">XPA Changes: Changes For Users from XPA 1.0 and 2.0</A></H2>
-
-<!-- =section xpachanges SYNOPSIS -->
-<H2>Summary</H2>
-<P>
-This document describes changes that will affect users who migrate
-from XPA 1.0 to XPA 2.0.
-
-<!-- =section xpachanges DESCRIPTION -->
-<H2>Description</H2>
-<P>
-There have been a few changes that affect users who upgrade XPA
-from version 1.0 to version 2.0.  These changes are detailed below.
-<UL>
-<P>
-<LI>XPA commands no longer have a resolver routine (this is open to
-negotiations, but we decided the idea was dumb).  For the SAOtng
-program, this means that you must explicitly specify the access
-point, i.e.,:
-<PRE>
-  cat foo.fits | xpaset SAOtng fits
-</PRE>
-
-<P>
-instead of:
-<PRE>
-  cat foo.fits | xpaset SAOtng
-</PRE>
-<P>
-<LI>By default, xpaset, xpaget, etc. now wait for the server callback to
-complete; i.e., the old -W is implied (and the switch is ignored).
-This allows support for better error handling.  If you want xpaset, etc.
-to return before the callback is complete, use -n switch:
-<PRE>
-  echo "file foo.fits" | xpaset -n SAOtng
-</PRE>
-<P>
-<LI>The old -w switch in xpaset and xpaget is no longer necessary (and is
-ignored), since you can have more than one process communicating with
-an xpa access point at one time.
-
-<P>
-<LI>The new -p switch on xpaset means you need not read from stdout:
-<PRE>              
-  xpaset -p SAOtng colormap I8
-</PRE>
-<P>
-will send the paramlist to the SAOtng callback without reading from stdin.
-
-</UL>
-
-<!-- =section xpachanges SEE ALSO -->
-<!-- =text See xpa(n) for a list of XPA help pages -->
-<!-- =stop -->
-
-<P>
-<A HREF="./help.html">Go to XPA Help Index</A>
-
-<H5>Last updated: September 10, 2003</H5>
-</BODY>
-</HTML>