I have a 2010 MacBook pro what is the latest software i should be running?

The latest software you should be running is macOS High Sierra, you can check that by going to this page macOS High Sierra - Technical Specifications, which will show you and tell you what you need as far as space to upgrade to the latest software available for you.

You can view more specs about your mac by clicking on the apple logo in the top left-hand corner and clicking about this mac and that will tell you your mac specs that you need to see if you can qualify for different os versions or not.