http://sports.espn.go.com/nfl/news/story?id=2389062
There was one significant change in the roster cutdown before the start of the season and one after the final cutdown.
In a vote of 29-3, owners allowed teams to keep 75 instead of 65 players on their roster in the first cutdown, which is annually the Tuesday after the third preseason weekend. The trade off was the NFL Europe exemptions that allowed teams to bring more players to camp expire at that time. The reason for the change is simple. For the most part, the NFL Europe players weren't going to make the team but teams keep them to the final cut in order to have bigger rosters for the preseason finale.
Now, teams can cut the NFL Europe players in the next to last cut and have 10 extra players who could either make the team or be candidates for the practice squad.
The second part of the roster proposals is that the eight-member practice squad was extended four years to 2009. Before last season, teams could only keep five players on the practice squad.