Fuji X-T2 Firmware Rollback

Fuji has announced a roll-back to its recent X-T2 Firmware 4.0.  Firmware 4.1 effectively restores the camera to Firmware 3.0 features (and stability)

I have not experienced any of the defects listed by Fuji and am debating keeping 4.0 installed but as I have a shoot coming up I will plan to keep a spare SD card with 4.1 ready to go should I need it... 

https://www.dpreview.com/news/2279621669/fujifilm-retracts-firmware-4-0-for-the-fuji-x-t2-due-to-malfunctions