For competitive players, Super Cancel (R1 + R2) became more responsive. Before 1.04, player collision detection was loose; after the patch, you could physically jostle for position before a header more effectively.
The Data Pack 5.0 includes:
While the patch fixed the engine, fixed the cosmetics. At roughly 800MB (huge for 2013 internet speeds), this DLC was mandatory for authenticity seekers. pes 2013 data pack 5.0 and patch 1.04