In another thread I asked the question:

Well, the Ultra showed up with 4.1.14 and the comment that the latest (V02.04.0600) was available.
I blew it with the bird, putting 04.0100 on it before spending more time reading, and wish not to make the same mistake with the CS.
I don't need fancy latest features. I value stability of the firmware/software over anything else. Thanks in advance for advice.

Well, the Ultra showed up with 4.1.14 and the comment that the latest (V02.04.0600) was available.
I blew it with the bird, putting 04.0100 on it before spending more time reading, and wish not to make the same mistake with the CS.
I don't need fancy latest features. I value stability of the firmware/software over anything else. Thanks in advance for advice.