Originally Posted by
sportex "dear sir". Don't you patronize me. How do you know if I read the article or not?
Sorry, but please understand that you appeared to be one of the countless that come around whenever a new update is announced and repeatedly ask the same questions over and over.
"When Cyan 520 INDIAA??"
"WHEN WINDOWS 10 ON 730"
"WILL mY 930 GET DENIM"
"WHEN UK 930 WIN10??????"
it bothers some people when so many people do so, and especially when those will be answered in 30 seconds had one searched.
But for you, (which isn't so easily found, but seems like it) Denim is not a prerequisite for Windows 10. Previously on the Preview for Developers program, one could obtain new OSes without the corresponding firmware. I ran Lumia Black with 8.1 before. I'm running Cyan with 8.1 Update. My friend runs Lumia Black with 8.1, etc.
You'll be able to get it "out-of-order" although both the OS (8.1) and firmware (Cyan for example) are somewhat independent entities that happen to just be served together. Using one without the other will work. May not work as well as it would, but it still works OK.