As of December 1, 2015, a new bankruptcy form for filing proofs of claim has gone into effect. 

The form has undergone a number of non-substantive, cosmetic changes, which should make it easier to complete. The only substantive change is the addition of a new Item 10, which asks whether the claim is based on a lease and, if so, the amount necessary to cure defaults outstanding as of the petition date. Finally, the name of the form has been changed to Form 410. 

Click here for links to the new proof of claim Form 410 and for the accompanying official instructions.