Jul 2014 (v12.8.2 release)
· New models: agauss, nsmaxg, nsx, rnei
· gnei, nei, npshock, pshock, sedov: Updated to AtomDB 3.0, and have new ‘vv’ option.
Aug 2013 (v12.8.1 release)
· New models: cpflux, heilin, lyman, zbabs.
· New ‘pstat’ option for statistics, and new ‘#’ option for ‘whittle’ statistic.
· ‘setplot delete’ now has additional ‘all’ and range options.
· ‘fakeit’ has new ‘nowrite’ option.
· ‘parallel’ has new ‘steppar’ option.
· Updates to ‘tclout’ command’s ‘chain’, ‘stat’, and ‘statmethod’ options.
· The ‘improve’ command has been removed. It is no longer supported by the new Minuit library that is contained within v12.8.1.
· New ATOMDB_VERSION Xspec.init setting mentioned in ‘apec’ and ‘bapec’ model docs.
· New ‘DGNFLT’ and ‘DGFILT’ routines added to Appendix F.
· Updates and revisions to ‘lrt’ and ‘simftest’ Tcl script commands.
· Updated the default values for the ‘cosmo’ command.
· Correction to gamma equation in lstat description of Appendix B.
· Correction to par2, par9, and par10 description in ‘optxagn’ model.
· In ‘chain’ command, Goodman-Weare is now the default.
Dec 2012 (v12.8.0 release)
· Major rewrite and expansion of the ‘Walkthrough’ section, including examples with features that are new for v12.8.0.
· New ‘parallel’ command.
· New models compmag and comptb.
· New ‘test’ option for the ‘statistic’ command, and new choices for statistics.
· Enhanced the ‘Poisson data’ subsection of the ‘Overview’.
· New <critical beta> option for ‘method’ and ‘fit’ commands.
· New options for the ‘chain’ command: ‘type’ and ‘walkers’.
· Added several sections in Appendix B for new statistics.
· Added ‘plot goodness’ and ‘thin’ option to ‘plot chain’.
· Note on grouped spectra added to fakeit.
· Note on uniform binning added to gsmooth model.
· Updated description for simpl convolution model.
· New tclout options: ‘tclout ignore’ and ‘tclout goodness sims’. Also added units to ‘tclout lumin’ description.
· Added to ‘ftest’ a warning against using on a multiplicative component.
· Added clarification on trace element abundances when using ‘apec’ and ‘vapec’ models.
Feb 2012 (v12.7.1 release)
· Compps, eqpair, and nteea models descriptions modified for change in handling Compton reflection.
· Corrections made to the model strings table for the ‘xset’ command.
· Added RFLABD Fortran wrapper to the Appendix F table.
· For ‘rmodel ‘ command, the ‘none’ option now also resets responses to their initial state.
· Initpackage and lmod are now supported on Cygwin. The “static_initpackage” workaround has been removed.
· New ‘tclout’ options: nullhyp and rerror. Tclout eqwidth, flux, and lumin now also have an ‘errsims’ option for returning error values array.
· New additive models: eplogpar, gadem, vgadem, logpar, optxagn, optxagnf, pexmon.
· Correction to parameter description in kerrconv model.
· Minor rewording in cflux model description to improve clarity.
· For apec and bapec models, replaced ATOMDB 2.0 with version 2.0.1.
· Correction to description of par3 in gabs model.