I have been trying to get an official response from SONOS on their continued use of SMB1 which will be removed from various vendors products. I have been using SONOS since it was introduced with various SYNOLOGY NAS and Windows based computers to store my ripped music. When SYNOLOGY releases DSM V7 they have indicated that SMB1 will be removed and Microsoft Windows has deprecated the protocol.
I will NOT purchase another SONOS product until they provide an official answer on their plans to continue to support streaming music from a NAS that does NOT require the SMB1 protocol.
Best answer by controlav
The only statements I can find from Sonos on NAS usage are here, and pretty clear on the SMB requirement: https://support.sonos.com/s/article/78?language=en_US