Hello everyone, Bootstrap now installs Pillow as the new replacement library of the Python Imaging Library (PIL), which has been deprecated/abandonware for a couple of years now. You can update your local installation by running libtbx.python -m pip install Pillow I ran tests locally, and they appeared to run fine. Although this is pretty much a drop-in replacement there may be some import statements which need updating. If you do come across problems you may find this to be of use: https://pillow.readthedocs.io/en/4.2.x/porting.html -Markus -- This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail. Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd. Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message. Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom