Ok I am thinking hard about getting started bow hunting again. I have some questions though.

1-I have a late 80s Lynx Magnum m-7. The bow was my fathers so I do have some attachment to it. It is in pristine shape. My question on this bow would be.
1a-Has the technology on bows advanced so much in the 10-20 since this bow was produced that it would be to my advantage to buy a new bow?
1b- This bow has not been fired in years. Would it be advisable to take it some place and just have it looked over and maybe have the string replaced?