2010 MacBook Pro OS X update

Hi, my MacBook Pro is a mid 2010, 13 inch, 2.4Ghz intel core 2 duo, 8gb ram and 750GB hard drive.

A few years ago I upgraded the original OS X to 10.9.5 (13F1911), and would like to know what the latest OS X is I can update it to now.

It runs great, I’ve had the keyboard replaced and a new battery, otherwise no problems apart from being on the third power brick, which did fail too but I stripped it and soldered the frayed wires and wrapped them in heat shrink... runs cooler now and works fine.

I can’t run the latest version of chrome and am guessing it’s the old OS X, hence the update question.

Thanks for any advice in advance,

Matt.