Introduction

This document summarizes the changes between successive versions of the ADF package, including BAND, COSMO-RS, DFTB, ReaxFF, and graphical user interfaces.

The Chapters are in reverse time order: the most recent ones come first.

This document focuses on reporting error repairs and changes in functionality or performance. Technical changes in the code may not be mentioned if they:

• have only very small effects on numerical results and/or the program's performance,
• solve bugs that let the program crash in certain circumstances,
  but which do not affect the outcomes in calculations that terminate normally.

Explanations of new keywords, options, etc. are brief: for more details see the User manuals. The same holds for installation comments. Generally: read the documentation! This write-up is intended to draw your attention to important changes, not to explain every detail.