How to update bench from Frappe-ERPNext Version-14 to Frappe-ERPNext Version-15 15

ERPNext
, ,
1

I want to install frappe lms which only runs at version 14 so I don’t know what should I do to run frappe lms and how to update the pre-requisites to run lms on 15 version
thank you

2

@saifsabry Please check this.