I’m not exactly sure what you’re asking.
Do hackers adapt to different platforms over time?
Yes, but hackers are people too. The reason why hackers tend use Linux and Windows more is it has more freedom than the OS X. Also, the cost of a mac (hackers are people too. On top of that, hackers tend to understand how to emulate OS X on a much powerful Windows or Linux PC. I have a video on my YouTube channel on how to do that.)
If you are asking how hackers stay informed.
Hackers tend to use events like DEFCON, school, and the news as resources. Hackers also use forums and andchatalike this, but there is a bit of mistrust in these things. There is virtually no way of knowing if the person you’re talking to is the cops.