Really small filesize makes it easy to bundle with Xdelta patches.

xdelta UI - Includes basic patch applying and creation.

See xdelta documentation for command-line usage and wiki directory.

To generate Xdelta patch, use the following while replacing filenames xdelta3.exe -e -s old_file new_file delta_file.

To apply Xdelta patch, use the following while replacing filenames xdelta -d -s old_file delta_file decoded_new_file.

Open command line and navigate to Xdelta path:

The 3.1.0 release uses a 64-bit hash function, currently performs 3-5% slower and has 1-2% worse compression.Įxamples below are for Windows executables (.exe).

v3.1.0 - A beta release from the 64bithash branch, supports source-window buffer values (-B) greater than 2GB.

v3.0.11 - Bug-fix release addressing a performance bug and several crashes in the decoder (discovered by afl-fuzz).

It runs on Unix-like operating systems and Microsoft Windows.ĭownload contains the following versions (released on 8): Xdelta3 can generate standardized VCDIFF format, and it realized the compatibility among other delta encoding software which supports the VCDIFF format. The algorithm of xdelta1 was based on the algorithm of rsync, developed by Andrew Tridgell, though it uses a smaller block size. It was first released in 1997 by Joshua MacDonald. game executable, rom) or the original file's filesize is huge. This is especially useful if the original file contains copyrighted material (e.g. This effectively means only modifications made between the two binary files are saved the resulting file is easily shared to another user, who can use it to generate a modified file from the original file. Xdelta is a utility which is used to generate a file of differences between two binary files.

How to patch with xdelta ui