I don't know why but 'image: jellyfin/jellyfin:latest' wasn't flagging a new image for me so had to use 'image: jellyfin/jellyfin:10.11' instead. All working fine on my Synology NAS. I also have a Jellyfin instance running on a MiniPC and that update went well too. Remember all to do a hard reload on your browsers after install.
Jellyfin1 - 10.10.11 Synology NAS (transcoding off)
Jellyfin2 - 10.10.711 Minix ZX100-0db MiniPC, Intel N100 (transcoding on)
Storage - x3 Synology NAS (22TB)
Reverse Proxy - Caddy v2 running on a Pi3b+
Jellyfin2 - 10.10.711 Minix ZX100-0db MiniPC, Intel N100 (transcoding on)
Storage - x3 Synology NAS (22TB)
Reverse Proxy - Caddy v2 running on a Pi3b+