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                            RELEASE NOTES FOR HEASOFT 6.3.1
                                    July 27, 2007
    ******************************************************************************
    
    The HEASoft 6.3.1 release is primarily driven by the release of the
    Suzaku (version 6) and Swift (version 2.7.1) software, but also includes
    some minor configuration changes.
    
    As before, configuration-related changes thoughout the package means that
    users who already have HEASoft v6.x.x installed will need to completely
    replace their software installation; there is no clean way to simply
    overlay this new release or to update an existing installation.
    
    ******************************************************************************
                                    Configuration
    ******************************************************************************
    
    - ftools component:
    
      Fix optimization switch previously implemented: C optimization should be
      turned down (to -O, not off) any time gcc 4.0.1 is being used (currently
      on most Darwin OS), not just for Intel Mac (the previous implementation).
      This fixes a known bug in gcc 4.0.1 that breaks cfortran-generated code.
      Force Darwin g95 optimization to -O to fix xspec12 zwabs model problem.
    
    - Xspec 12 component:
    
      Force Darwin g95 optimization to -O to fix xspec12 zwabs model problem.
    
    *****************************************************************************
                                       XSPEC 11
    *****************************************************************************
    
    In the original release of HEAsoft 6.3, XSPEC v11 had a bug triggered by
    using the addcomp command to insert a component into a model.  This bug
    was fixed in the 6.3 release downloads on 13 July 2007 and is now included
    in the 6.3.1 release as well.
    
    *****************************************************************************
                                       SUZAKU
    *****************************************************************************
    
    Suzaku software Version 6 - Changes since HEASoft v6.3:
    
    --------------
    General tools 
    --------------
    
     aeattcor
    
       -  Bug fix. Correct calculation of the keyword SGM_YOFF which produces
          in some cases a value of NaN
    
    ------------------
    XIS Specific tools
    ------------------
    
     xissimarfgen: 
       -  Bug fix. Correct the behaviour for large number of event (>2**32)
    
     xistime: 
       -  Bug fix. Correct the time calculation when the DP_TIMC_DAT is 
          wrapping around from 2**31 to -2**31
          Also correct the time assignment for the XIS psum mode. 
    
    ------------------
    HXD Specific tools
    ------------------
      
     hxdtime:
      - Bug fix. Correct the time calculation when the DP_TIMC_DAT is 
        wrapping around from 2**31 to -2**31
    
    
    ******************************************************************************
                                        SWIFT
    ******************************************************************************
    
    Swift software Version 2.7.1(Bld21.1) - Changes since HEASoft v6.3:
    
    --------------
    General tools 
    --------------
    
     swiftxform:
        - Allow access to remote CALDB.
    
    --------------------
    UVOT specific tools
    --------------------
    
     uvotapercorr:
       - Exit with an error if the radius requested is not available
         in the calibration file.
    
     uvotdetect:
       - Rename 'sextractor' executable to 'uvotsex' to avoid collisions
         with other installed versions.
    
     uvotimage:
       - Do not make images from EVENT exposures shorter than 11ms.
    
     uvotmaghist:
       - Allow user to specify PSF CALDB file and frame time.
        Allow user to plot a column other than MAG.
    
     uvotskycorr:
       - Require corrfile to be a plain file if applying corrections.
    
     uvotsource:
       - Retrieve WAV* keywords from COLORTABLE CALDB file.
         Allow user to specify PSF CALDB file and frame time.
         Corrected calculation of circle radius from region area (which
         is needed when method=CURVEOFGROWTH).
    
    
    -------------------
    XRT specific tools
    -------------------
    
     xrtscreen:
        - Apply the caldb query for the hkrange file depending on
         the substrate voltage.
    
     xrtcalcpi:
        - Apply the caldb query for the gain file depending on the
          substrate voltage.
    
     xrtmkarf:
       - Apply the caldb query for the arf and rmf file depending on
         the substrate voltage.
    
     xrtproducts:
       - Apply the caldb query for the rmf file depending on the
         substrate voltage.
    
     xrtevtrec:
       - New input parameters 'thrfile' to get event and split thresholds
         from CALDB file.
    
     xrtpcgrade:
       - New input parameters 'thrfile' to get split threshold from CALDB file.
    
     xrtflagpix:
       - New input parameters 'thrfile' to get PHA threshold of central
         pixel from CALDB file. Flag as BAD events outside of FOV region.
    
     xrtpcbias:
       - New input parameters 'thrfile' to get event and split thresholds
         for bias calculation from CALDB file. Set 'bpfile'="CALDB" in 
         xrtflagpix task call.
    
     xrtwtcorr:
       - New input parameter 'thrfile' to get bias threshold from CALDB file.
    
     xrtpdcorr:
       - New input parameter 'thrfile' to get bias threshold from CALDB file.
    
     xrtpipeline:
       - New input parameter 'thrfile' to get threshold levels from CALDB file.
    
     xrttdrss2:
       - Set 'bpfile'="CALDB" and 'thrfile'="CALDB" in xrtflagpix task call.
    
     xrtpccorr:
       - Bug fixed when reading mkf file.
         Changed datatype of some columns in 'BIASDIFF' extension.
    

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    Last modified: Thursday, 20-Nov-2008 15:07:46 EST