- Fix a crash when a section was used when stacking.
- Add missing third party adpkg and drpkg support to utility scripts dataselect, showpars, typewalk, and showrecipes.
- fix to Jacobian calculation for non-affine transforms
- Make adcc more robust to missing connection to fitsstore.
- Add compatibility with sigma_clip for astropy v3.1+
- Add IRAF compatibility keywords on GMOS mosaiced data.
- Add compatibility with astroquery 0.4.
- Add compatibility with sigma_clip fro astropy v3.1+
- Add IRAF compatibility recipe.
- Various fixes to documentation and instruction manual following feedback from users.