http://www.rfc-editor.org/rfc/rfc3284.txt
RFC 3284: The VCDIFF Generic Differencing and Compression Data Format, D. Korn, J. MacDonald, J. Mogul, K. Vo2002-06-01T23:00:00-00:00This memo describes VCDIFF, a general, efficient and portable data format suitable for encoding compressed and/or differencing data so that they can be easily transported among computers. [STANDARDS-TRACK]