Xdelta version 3 is a C library and command-line tool for delta compression using VCDIFF/RFC 3284 streams.

The sources live in the xdelta3 directory. To build with CMake:

cd xdelta3
cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build
ctest --test-dir build

See xdelta3/README.md for more detail, including liblzma options and the Go regression-test harness.

This repository contains branches of Xdelta 3.x that were re-licensed by the original author under the Apache Public License version 2.0, namely:

• release3_0_apl Change to APL based on 3.0.11 sources
• release3_1_apl Merges release3_0_apl with 3.1.0 sources

The original GPL licensed Xdelta lives at http://github.com/jmacd/xdelta-gpl.

See the command-line usage. See wiki directory.