Konami has announced that the Euro 2016 update is now available for free in PES 2016. When Konami first announced its acquisition of the Euro 2016 license it stated the tournament wouldn’t be part of PES 2016. Due to issues with the game’s other data packs Konami decided to abandon that idea, deciding to release the tournament for free instead a few months ago.
The update includes updates to player faces as well as their stats, the national team licenses, the Stade de France, the official Euro 2016 ball, and the Euro 2016 tournament mode. On top of that national kits will be updated to reflect their current styles, with certain club kits also getting updated.
Source: Press Release