Dr. Kylie Bemis, the developer of Cardinal, has presented a short course in the May Institute at Northeastern University on May 6. The session covered changes in version 3.6, visualization of MSI and spectra, updates to the preprocessing methods, and the statistical methods in the package. The session is recorded and is available at this
link.
We hope that you can refer to this recording for a more in-depth guide to the changes in v3.6 and as an updated tutorial of Cardinal's functionalities and methods. The video's description contains links to relevant resources as well.