Long .pbn file header doesn't overwrite card images. Replay from end of auction can handle alerts. Yet another Blackwood fix. Improved documentation for foreign languages. Many modifications to bidding database, correcting Blackwood bugs, improved balancing sequences and other changes.
Minor bug fixes to bridge engine.
No significant performance impact. Fixes bug in handling undos when GIB is thinking. Completely rewritten user interface, including network play. Faster, smaller, and more reliable than previous versions. Language support for uipat410.