Each year, Subaru updates the programming a bit to try to lock out modifications to the maps.
It's why every year, there are updates to COBB software. The 2010 was a bit more complex hence the need for a separate map download.
Also for those of you who haven't compared the v104 maps yet, COBB regresses their tuning approaches back to v101 with some minor changes. Should really be more like v101b or something.
The S# throttle map is also back to stock albeit with higher top end, peak req tq values for easier driveability. They are now progressively sensitive based on RPM. The higher the RPM, the more minute changes you can make.
LWG maps are also available now for catless dp users. Improves on minimizing boost flutter and search but also sacrifices boost responsiveness. Power is more linear and smooth though. keep standard map if you keep your rpms high when boosting as a habit as you will get better response.
WG mapping is different dependent on octane ratings. 93 octane actually has the best WG map as it takes into account the mechanical reactions of the turbocharger on boost build and increases responsiveness throughout the rev band dependent on RPMs while the 91 maps do not.
91 maps are much less boost responsive in comparison to the v102 and the v104 93oct due to the combination of the regressed boost tables and the WG mapping.
Any over the counter map is garbage, It's way too general so that all cars will "benefit" from it. Every car is different, buying an accessport is a waste of large amounts of money. Spend half that, get a real tune, which is for your specific car, in your specific area, and your car will run like a champ =)