xdelta3: Xdelta3 (Binary Delta Generator) xdelta3: xdelta3: Xdelta is an application program designed to compute changes between xdelta3: files. These changes (deltas) are similar to the output of the "diff" xdelta3: program in that they may be used to store and transmit only the xdelta3: changes between files. However, unlike diff, the output of Xdelta is xdelta3: not expressed in a human-readable format. xdelta3: Xdelta uses a fast, linear algorithm and performs well on both binary xdelta3: and text files. xdelta3: xdelta3: