Option for different menu styles added
Grid appearance in alpha spending function form improved
alpha spending function form: Change of K, alpha, and information rate automatically adopted
Legend in chart for sample size and power omitted if K = 1
Fisher's exact test: Error message when outside validated range
Notation "noninferiority" also for delta0 < 0
html help changed

Formular title corrected
Rewritten and enhanced documentation and online help
O'Brien and Fleming design type alpha-spending function incorrectly displayed in the two-sided case. Problem fixed with Version 3.1.3.
Label in General Design plan not visible. Problem fixed with Version 3.1.3.

Popup menu and main menu item added for viewing and printing analysis results
Menu items rearranged
Minor changes

Simulation tool for survival designs implemented
Unified output of simulation frames
Unified caption of message boxes
Footnote text in graphs amended for single stage designs
Option for academic multiuser added
Licensing procedure improved
Copy table to clipboard added to popup menu in main form
Popup menu added to simulation tables
Popup menu added to output tables in analysis sheets
Minor changes
Menu for Analysis form incorrect when coming from simulation forms (items not disabled). Problem fixed with Version 3.1.1
Remove last plan does not disable Save and Print menu item. Problem fixed with Version 3.1.1
Remove single survival plan may not delete last cell of output table. Problem fixed with Version 3.1.1
Remove and Print all plans item enabled if only one plan available. Problem fixed with Version 3.1.1

Hints in Analysis General Design form improved
Country specific read-in of data from .ada files
Normal approximation test defaulted in Analysis for Rates (One- and two-sample test)
Improved Directory Selection form
www.addplan.com is the new website
Clear button does not delete calculation time in simulation modules Corrected. Problem fixed with Version 3.1.0
Power as decimal number not correctly reproduced by clicking on the table Corrected. Problem fixed with Version 3.1.0
Clear button in popup menu does not delete calculation time in main formular. Problem fixed with Version 3.1.0
Presentation of effect = 0 in simulation module can be incorrect. Problem fixed with Version 3.1.0
Plans not shown in list form when choosing Critical values from Simulation or Analysis module. Problem fixed with Version 3.1.0
Simulation for adaptive calculation of sample size for one-sample testing of a mean may produce wrong results. Problem fixed with Version 3.1.0
Minor changes

Country specific presentation of Pocock design in design form and graphs (0.5 vs. 0,5)

Figures without decimal places can be wrongly displayed in output table Corrected. Problem fixed with Version 3.0.7.

Beta releases, published for testing

Two-sided overall p-value for negative direction can produce bug: corrected
If decimal comma is used Hwang et al class alpha spending approach can produce uncorrect result: corrected
Minor changes

Conditional sample size calculation in analysis for one rate based on assumed effect not possible: corrected