https://arstechnica.com/gadgets/2021/09/roku-os-10-5-announced-alongside-new-streaming-stick-4k/

Today, Roku announced a new streamer in its lineup, the Streaming Stick 4K, alongside a “plus” version of the device with a better remote. The company also confirmed that Roku OS 10.5 will begin rolling out “in the coming weeks,” bringing new audio features and improved search and voice capabilities to compatible Roku devices.

The Roku Mobile app also boasts a few new functions, including a feature to fix audio delays on wireless earbuds paired to Roku streamers. We also have a preview of a new wireless soundbar from TCL and a refresh to the Walmart-exclusive Roku Ultra LT.