Sonos 10.1 update breaking Savant Systems integration

Sonos! What did you do?!?! When is this going to be fixed?

From Savant:

Field Impact Notice
Sonos Software Update 10.1 Causes Savant Integration to Become Inoperable


Document Date: April 3, 2019
Document Supports: da Vinci 8.x, 9.x


Issue Summary:
On April 3rd, 2019, Sonos released 10.1 which causes Savant integration to become inoperable.

Any Savant System running Savant Pro 8.x and later utilizing the Sonos service with a Sonos Play Speaker, Sonos Amp, or Sonos Connect will be affected. Endpoints utilizing Playbar, Playbase, or Beam are affected, although volume control for these devices is retained.

Conditions Present:
A Sonos Play:1, Play:3, Play:5, Connect, or Sonos Amp is installed and has been updated to 10.1.
Unable to discover Sonos devices via System Monitor and Savant Studio.
Sonos actions from the Savant Home Screen do not execute.
Sonos actions from Savant REM devices appear to execute but no music is heard.
Scenes containing Sonos will initiate playback, but volume control does not function.
Scenes executing Zone Power-Off do not stop playback of the Sonos service, even though the service shows disabled on Savant UIs.
Resolution:
None at this time. Savant is actively investigating this behavior and will provide updates to this Field Impact Notice. At this time, it is advised to avoid updating Sonos devices to 10.1. The Sonos app can be used in the interim as a workaround if an upgrade has already occurred.