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-=pod
-
-=head1 NAME
-
-
-
-B<XPA Changes: Changes For Users from XPA 1.0 and 2.0>
-
-
-
-=head1 SYNOPSIS
-
-
-
-
-
-This document describes changes that will affect users who migrate
-from XPA 1.0 to XPA 2.0.
-
-
-
-=head1 DESCRIPTION
-
-
-
-
-
-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.
-
-
-=over 4
-
-
-
-
-
-=item *
-
-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.,:
-
-  cat foo.fits | xpaset SAOtng fits
-
-
-
-instead of:
-
-  cat foo.fits | xpaset SAOtng
-
-
-
-
-=item *
-
-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:
-
-  echo "file foo.fits" | xpaset -n SAOtng
-
-
-
-
-=item *
-
-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.
-
-
-
-
-=item *
-
-The new -p switch on xpaset means you need not read from stdout:
-              
-  xpaset -p SAOtng colormap I8
-
-
-will send the paramlist to the SAOtng callback without reading from stdin.
-
-
-
-=back
-
-
-
-
-
-=head1 SEE ALSO
-
-
-
-See xpa(n) for a list of XPA help pages
-
-
-
-=cut