xdelta3

Create delta

$ xdelta3 -e -s [old_file] [new_file] [patch.xd3]

$ xdelta3 -d -s [old_file] [patch.xd3] [new_file]

$ xdelta3 -9 -e -s [old_file] [new_file] [patch.xd3]

$ xdelta3 printdelta [patch.xd3]

$ xdelta3 -d [patch.xd3] [output_file]

xdelta3 [-e|-d] [-s source] [options] [input [output]]

xdelta3 creates and applies binary deltas. It uses VCDIFF format.
Encoding computes differences. Delta file captures changes.
Decoding reconstructs target. Applies delta to source.
Compression levels trade speed for size. Higher = smaller but slower.
Streaming mode handles large files. Memory efficient.
Self-contained patches possible. Source embedded in delta.

-e, --encode

Create delta.

Apply delta.

Source file.

Compression level.

Force overwrite.

Output to stdout.

Verbose output.

Source file required for decode. Memory usage for large files. Format version matters.

xdelta3 is the third version of xdelta, implementing RFC 3284 VCDIFF. It provides efficient binary delta compression.

xdelta(1), bsdiff(1), diff(1)