People often talk about the fork, but i don't know what that means. Any good links?
What kind of fork that you talking about? , there a hard fork and soft fork 
By the way I include a link for better explanation about that fork below
Hard Fork : https://www.investopedia.com/terms/h/hard-fork.asp
Soft Fork : https://www.investopedia.com/terms/s/soft-fork.asp