- Changed cholmod 32 bit calls to 64 bit calls [#5173](https://github.com/DOI-USGS/ISIS3/issues/5173) and [#5176](https://github.com/DOI-USGS/ISIS3/issues/5176)
- Removed the `.py` extention from the _isisdataeval_ tool `isisdata_mockup` for consistency and install it in $ISISROOT/bin; added the `--tojson` and `--hasher` option to _isisdata_mockup_ tool improve utility; updated the tool `README.md` documentation to reflect this change, removed help output and trimmed example results; fixed paths to test data in `make_isisdata_mockup.sh`. [#5163](https://github.com/DOI-USGS/ISIS3/pull/5163)
- Significantly refactored FASTGEOM processing in <i>findfeatures</i> to accommodate stability and functionality. The scope of the algorithm was taken out of the ImageSource class and isolated to support this feature. [#4772](https://github.com/DOI-USGS/ISIS3/issues/4772)
- Report better information regarding the behavior of <i>findfeatures</i>, FASTGEOM algorithms, and creation of the output network. [#4772](https://github.com/DOI-USGS/ISIS3/issues/4772)