Introduction

Xdelta is released under the terms of the GPL version 2.

Details

You may use and distribute the Xdelta executable (i.e., the command-line program) without an excemption to the GPL. If your program integrates directly with Xdelta at the API level, if you "link" directly to the Xdelta API, you must either distribute your source according to the terms of the GPL, or you must contact me regarding a commercial license: <josh.macdonald #x40 gmail.com>