About
This article compares DR3 and DR4 and points to changes.
Content
Introduction
DR4 development was started by the need of performance improvements. In order to reach this goals the code was restructured and partially new implemented. In addition some old and/or unused features, which are not anymore required, was deleted. Therefore some configuration items were deleted and others changed the form and the way how they are persisted inside configuration files.
The following sections describe the major changes, behaviors, new configuration items and deleted configuration items.
Performance Improvements and its impact
TODO paralelisierung
Schma file caching
TODO multiline index file handling