Version 2.5.0.0
- New feature: The number of problems for booklet out of existing problems can now be set.
- New feature: The time used for solving a problem interactively is now been displayed.
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Version 2.4.2.0
- New feature: Some changes regarding options. In addition the setting of the options "Track", "Find all Solutions", and "Auto Check" are now saved when closing the program.
Version 2.4.1.0
- New feature: The calculation of the severity level has changed. In most cases the resulting level is the same as before, however in some times the new level better reflects the "real" severity (if there is a such a thing like a "real" severity).
- New feature: Performance enhancements in particular when creating a booklet from stored problems.
Version 2.4.0.0
- New feature: The calculation of valid values for a cell now also identifies "Naked Pairs".
Version 2.3.3.0
- New feature: Application's performance improved.
- Corrected Bug: In some cases the "undo" option was enabled even though there was nothing to undo. This has been corrected.