If android 4.4.1 is installed by default, will Android 5 and even 6 go to my phone?

Question

Android

How to install it if my computer is not Windows, but linux

Answer 1

Iron, in principle, will allow, but if the manufacturer has not done it, then it will hardly work. No, of course, if you understand the structure of the Android OS, then it is quite possible to rebuild. What, in principle, is the CM team doing. And that is not always without glitches. To do this, you need to be well versed in programming.

Answer 2

I have no idea, but you forgot to write the most important thing in the text of the question - the model / brand of the phone.