@jeremy215 

Your firmware is already the latest one, there is no new firmware available now.

As you know,  it is not always easy to release a new firmware; first, we need to get much enough reports so that we can propose an improvement; supported by the known cases; After that, the related engineer will start to make firmware and do round and round tests to ensure its performance. Besides, not only to add a single new feature, a new firmware may have multiple things to do to improve the whole system based on the last firmware. Which takes time to do that. 

I believe that you want a new firmware which is more powerful and much more suitable for most requests. 

It is very suggested to keep an eye on official website and wait for the updates.

Good day.