Usbridge not updating to latest version of Volumio

[ravitester]

I am running the dec 2020 version 2.861. If I try the OTA update it responds with "you have the latest version". 

There is no longer a link to the sparky version on the volumio site and even in the community development sparky is not mentioned. 

Has the Usbridge become obsolescent? Do Allo need to update anything for Volumio to work?

Please help

Thanks