Na I received an email which looked to be from SBB asking to upload a foto otherwise Swiss pass will be disabled. Looks like a phishing email to me..
AferditaH Hello Na Thank you for your query After a few years, the photo must be renewed. Please contact the Contact Centre on 0848 44 66 88 (CHF 0.08/min) or at ga@sbb.ch. Have a nice day. Kind regards, AferditaS