The US National Archives has announced that PRONOM has been significantly updated.
Here's an excerpt from the press release:
The National Archives has contributed to the update of a groundbreaking system—made available online today—that supports long-term preservation of and access to electronic records. The "new and improved" version of this "PRONOM" system was developed in partnership with the National Archives of the United Kingdom and the Georgia Tech Research Institute.
PRONOM is a web-based public technical registry of more than 750 different digital file formats that enables digital archivists, records managers and the public to precisely identify and confirm digital file formats. This identification is the first step to ensuring long-term electronic file preservation by enabling the identification of those file formats that are in danger of becoming obsolete. . . .
Technology from the National Archives contributed to a 25% increase in the number of entries in the PRONOM database, greatly enhancing PRONOM's range. "The National Archives is proud to share these technologies and contribute to PRONOM. Providing sustained access to valuable digital information is essential to preserving both our nation's records, and valuable digital assets worldwide" said NCAST Director, Kenneth Thibodeau. "The electronic records of the U.S. Government must be preserved for future generations, just as traditional paper and parchment records were preserved for us."