Sonos Local Music Library (SMB) no longer works with OS 5

My Cloud OS 5 Personal & Network Attached Storage My Cloud Pro Series
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Can @SBrown or someone else inside WD please give us some kind of timeframe when we might expect the firmware update he mentioned in his 11/2 post? WD really needs to address this issue ASAP because my expensive Sonos system is totally unusable right now, and I do not have the IT sophistication to make all kinds of temporary custom programming and complex network configuration modifications to get this working again as it has worked so well for a long time before OS5. I suspect also other networked systems that need to access the NAS are similarly adversely affected too.