Steveflighta8307cv

I've decided to dust off my fleet, and return to flying after 9 years of giving up the hobby. Is there anything I've missed out on and should know about? The only thing I know is new to me is the drone scene, but doesn't interest me to be honest. I'm also now upgrading into the jet scene, so most of my petrol fleet will be obsolete, and looking for as much advice I can on turbine engines/set-up ect... Regards Steve