I have already reviewed the 2015 model, the 2.0 version extensively. Here are some photos showing the differences between the two versions.
View fullsize

2.0 on left, newer 3.0 on right
View fullsize

New cross Strap attachment
View fullsize

New cross strap end bracket
View fullsize

New cross strap end bracket
View fullsize

Strange section on the cross strap
View fullsize

New MOLLE-Air panel
View fullsize

Grey buttons
View fullsize

Smaller Logo
View fullsize

Bottom MOLLE webbing
View fullsize

Larger size fits MacBookPro better
View fullsize

Flimsier key holder above