Lots of websites are running articles about whether High Sierra (OSX 10.13) will run on your current model Macintosh computer. The bottom line is, if your machine runs Sierra, it will run High Sierra. The hardware specs for 10.13 are exactly the same as for 10.12. But as usual I suggest you wait until the first update comes along before you upgrade. There are always a bugs in the first release.
If you are still running Yosemite (10.11), now might be a good time to upgrade to 10.12.
MacBook (Late 2009 or newer)
MacBook Pro (Mid 2010 or newer)
MacBook Air (Late 2010 or newer)
Mac mini (Mid 2010 or newer)
iMac (Late 2009 or newer)
Mac Pro (Mid 2010 or newer)