The last few months of work have resulted in another batch of updated features. The most important changes motivating this second release candidate relate to the bias field correction and intensity normalisation process previously performed by the mtbin command, which affects the fixel-based analysis pipeline in particular. Users who are in the process of performing a fixel-based analysis on their data should pay special attention to the changes this update brings to the bias field and intensity normalisation and other steps (and documentation) of the fixel-based analysis pipeline (see below for details).

This release candidate introduces a number of bug fixes and enhancements, but also other changes that you will need to know about, in particular:

#### Other more minor enhancements:

• support for exporting tracks to PLY format via tckconvert (courtesy of Daniel Blezek)
• improved handling of MGH/NGZ images
• fix handling of large files on Windows
• fix of the -shell option for dwi2fod msmt_csd (thanks to @isAarya for reporting!)

As always, you can update your install by performing a git pull followed by ./build at the command line (while in your MRtrix installation folder).