National Aeronautics and Space Administration

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                        RELEASE NOTES FOR HEASOFT 6.3.2
                             September 21, 2007
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HEASoft 6.3.2 is a patch release primarily for the Swift (version 2.7.2)
software, but also includes an update to the XTE task 'pcabackest'.

Please see

  http://heasarc.gsfc.nasa.gov/lheasoft/download.html

to download HEASoft 6.3.2, or

  http://heasarc.gsfc.nasa.gov/lheasoft/patch.html

to download a patch file which can be applied to your existing HEASoft
6.3.1 installation.

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                                    SWIFT
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BAT:

  batdetmask - Fix bug related to use of remote (ftp/http) CALDB
batglobalgti - Fix bug related to use of remote (ftp/http) CALDB
batphasimerr - Fix bug related to use of remote (ftp/http) CALDB
batphasyserr - Fix bug related to use of remote (ftp/http) CALDB

XRT:

    xrtmkarf - Bug fixed when reading 'XRTVSUB' keyword.
   xrtpccorr - Changed handling of mkffile not including infile range time.
   xrtpcbias - Clean 'XPHASCO' keyword when restore PHAS column.
             - Delete 'BIASDIFF' extension from previous run.
 xrtpipeline - Added check of 'XPHASCO' keyword after bias correction for
               PC mode.

swiftversion - Identifies patched release as Swift Build 21.2

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                                     XTE
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  pcabackest - (v3.1) Now properly handles PCA background models having a
               large number of components.