I am using Easel and GRBL 0.8. I have considered upgrading to GRBL 0.9 but I was thinking what advantage will this give me. If Easel generates gcode that makes use of additional features of GRBL 0.9 then the upgrade would make sense (and possibly the risk worth taking i.e. I do not brick my GRBL shield during the upgrade). But as Easel does not know what version of Grbl I am using, the gcode that it generates is independent of GRBL version.
So what is the advantage of the GRBL upgrade? or did I miss the point completely?