[pct-l] Halfmile maps, 2014 vs 2015

[Nathan Dreon]

I've been poking around www.pctmap.net, the location of Halfmile's maps, trail notes and other things.  Some Hiker Maps 2015 versions are on the page now, the complete 2014 versions are also there.  The Trail Notes are the 2014 version, there is a Corrections & Updates page with two changes to the Trail Notes.
Can someone tell me if there are likely to be a lot of differences between the 2015 maps and the 2014 maps and how I might find out what those differences are?