Current firmware version of HT-S8409 (TX-NR609)?

Could you please tell me what the most current firmware version number is for the HT-S8409? Is it the one listed in the instructions pdf? Also, it seems as though the TX-NR609 (which is included in the HT-S8409) has a different firmware update than the HT-S8409. By "different" I mean that the zip files I downloaded appear to be different. If they are in fact different, can I use either one? If so, which one is more current?

The reason I am asking about these version numbers is because I tried updating with a usb stick. The unit now lists its version as 1091-1100-0010-6104, which does not match the one listed in the instructions pdf (1121-1300-0010-6104).

Thanks for your help!

Hi thunderwolf17,
I have an associate looking into this for you and will get back to you shortly, thank you for your patience.