This document gives an overview of the features of Adabas Version 6.4 that have been introduced or modified since the previous release (Version 6.3). It also describes how to convert Version 6.1, Version 6.2 and Version 6.3 databases to and from Version 6.4.

The document contains the following sections:

• General Information

• New, Modified and Dropped Features

• Limitations and Restrictions

• Converting a Version 6.1, Version 6.2 or Version 6.3 Database to and from Version 6.4