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                      RELEASE NOTES FOR HEASOFT 6.33.1
                              March 21, 2024
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The HEASoft 6.33.1 patch release contains updates required for
building the source code on Macs using the Apple XCode Command
Line Tools (CLT) version 15.3, as well as Xspec patch 12.14.0b
and minor fixes to the IXPE data analysis software and HEASoftPy.

For users who only want the IXPE update, please visit our known
issues page.

To get the HEASoftPy updates without installing 6.33.1, please
run the "hpyupdate" utility (included in HEASoft): ): users of
6.33 may just run "hpyupdate", but users of older HEASoft versions
will need to download the latest version of hpyupdate.

To apply the latest Xspec patches please visit the Xspec issues page.


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                                     IXPE
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- ixpechrgcorr: Fixed import and use of the "quzcif" task, and
  fixed a logger issue.

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                                   HEASoftPy
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- Fixed handling of parameters with type 'fr'

- Fixed heasoftpy.nicer.* imports

- Reduced installation time