Hi there,
Here are the three designations, most models fall under the first two categories.
Current: Roku is currently manufacturing these products and they are fully supported.
Updatable: Roku no longer manufactures these products, but they can still be updated with the latest Roku OS.
Legacy: Roku has discontinued these models, and they cannot support newer versions of the Roku OS.
The 4660x is listed on that table as Updatable.
OS 12.0 will roll out slowly over the upcoming months.
Happy Streaming!
