Note: Some adjustments to the way you call FrontEndUsers may be required after upgrading.  Depending upon your use of the redirecto and returnlast parameters and other redirection functionality.
Note: This version and any subsequent versions of FrontEndUsers will require a supported version of CMSMS 2.x.
Note: This is a major refactoring of the FrontEndUsers module. Though most frontend templates have not changed, many admin templates have. If you have any overrides for admin templates then you must remove them before upgrading.