HEAsoft 6.10 available

The latest version of HEAsoft is available from the usual place. The only change to xspec is to include bug patches up to 12.6.0q. However, this release includes an update to QDP/PLT which fixes a problem when saving xspec plots to qdp files.

TBnew

I've added a link on the xspec additional models page to Jörn Wilms' high-resolution ISM absorption model. This should be used by anyone analyzing grating spectra.