Three changes are included in this release. First, the 2012 zip file contains data through 10/13/2012. Second, the zip files for all seasons how contain play-level data files for rushing, passing, and receptions.
The third change is to remove the Nullified column from the play.csv file. An example of the change is that a play that previously had a play type of RUSH with a Nullified column value of one now just has a play type of PENALTY. The change is due to the lack of consistency in how nullified plays are scored by the official scorers, plus the complication of having to consider nullified plays when analyzing the data.
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