Had a couple of reports of this already so I tested Swagger UI after upgrading 7.2.1 to SR5.
Doing an Auth via swagger comes up with an error
Method not found: 'Void JiwaFinancials.Jiwa.JiwaApplication.manager.LogEvent'
Pretty keen to get this working again asap without downgrading back to SR4. The 2 clients I've upgraded have both encountered this error so 100% failure rate so far for SR5.