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 delta patches using the VCDIFF format defined in RFC 3284. Encoding compares a source file with a target file and produces a compact delta that captures only the differences, while decoding reconstructs the target by applying the delta to the original source.
Compression levels from 0 to 9 trade processing speed for smaller delta sizes. A streaming mode processes data in chunks, enabling memory-efficient handling of very large files. Self-contained patches can be created without requiring the original source file for decoding, embedding the necessary data within the delta itself.

-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)