1.3 in a nutshell:
they tried to nerf warriors
it didnt work
rogues just about caught up to warriors
mages got nerfed (lolz)
clerics got semi-buffed in different areas
10 man gilded got nerfed
fixed bugs that shouldnt have ever made it into a release in the first place
they stole blizzard's valor/justice multi-badge system
the end.