v2.4.1 6-Apr-2008
- Customisations are now user based, and stored in the appropriate Application Directory.
- Improvements for the underlying Calculator Engine that is attached to the Popup Calculators.
- Updates to the Graphics Engine.
- Support for Systems below Windows 98SE dropped.
- Support for Systems below Windows NT 4 dropped.
- Changed to using HTMLHelp only for the integrated Help so as to make it work better under Windows Vista.
- Improved Windows Vista Support.
- Minor UI improvements.
- Improvements to Documentation.
- Updates underlying libraries.

v2.4 11-Oct-2006
- Range Selection now changes between Discrete and Continuous Distributions.
- Added Option to "add tabstops" to read-only controls to better support Accessibility via Screen Readers.
- HTMLHelp now supplied to make ESBPDF Analysis happier under Windows Vista.
- Minor UI Improvements.
- Improvements to Documentation.
- Updates underlying libraries.

v2.3.1 18-Apr-2006
- Fixed problem in Popup Calculator where erroneous equations were not handled properly.
- Minor UI Improvements.
- Improvements to Documentation.
- Updates underlying libraries.

v2.3 8-Feb-2006
- Added Option to Trim Trailing Zeroes.
- Added the option to enable Prefix Functions in the Popup Calculator. When Enabled you can press 5 + Sqrt 7 rather than 5 + 7 Sqrt.
- Fixed some typos in the labels.
- New look to tabs.
- Minor Help improvements.
- Updated Splash Screen.
- Update to Calculator Engine.
- Update to Graphing Engine.
- Updates underlying libraries.
- Update to Documentation.

v2.2 - 21 October 2005
- Added Hypergeometric Distribution.
- Update to Calculator Engine.
- Update to Graphing Engine.
- Updates underlying libraries.
- Added Tutorial for Lognormal Distribution.
- Added Tutorial for Inverse Lognormal Distribution.
- Added Tutorial for Hypergeometric Distribution.
- Minor Help improvements.

v2.1.1 - 12 January 2005
- "Unregistered" no longer shows at the bottom of the Registered version.
- Disabling Hot Tracking now also disables hot tracking for the Tabs.
- When Tabs are Hot Tracking they now don't use a different font.
- Graphing now defaults to 200 points for better initial accuracy.
- Improved handling for different Regional Settings.
- Update to Calculator Engine.
- Update to Graphing Engine.
- Updates underlying libraries.
- Minor Help improvements.

v2.1.0 - 31 August 2004
- Beta PDF added.
- Inverse Beta PDF added.
- Updated Report Engine.
- Export from the Report Preview now done using Gnostice eDocEngine.
- Changed Page Control to use the one supplied by LMD Innovative.
- Sometimes a Windows error would occur on exit, we believe we have now fixed that.
- Updated Graphics Engine.
- Improvements to Calculator Engine.
- Added Tutorial for Beta Distribution.
- Added Tutorial for Inverse Beta Distribution.
- Updates to Help and Documentation.
- Other Library Updates.

v2.0.0 - 26 May 2004
- Complete User Interface redesign and rewrite.
- Improved support for users of Large Fonts.
- Underlying calculation engine has had complete redesign and rewrite.
- Added Popup Scientific Calculator.
- Changed ESBPDF Icon.
- Improved Mouse Wheel Support/
- Improved Routines for Chi-Squared and Inverse Chi-Squared.
- Improved Routine for Inverse F Distribution.
- Binomial Graphing added.
- Poisson Graphing added.
- Exponential Graphing added.
- Chi-Squared Graphing added.
- Student T Graphing added.
- F Graphing added.
- Improved Handling of errors.
- Added ESBPDF Splash Screen
- More customisation of the look'n'feel.
- No longer has any Registry dependency, defaults are stored in esbpdf.ini (which can be deleted to return things to default state)
- Much improved Reporting Engine.
- Added Info Pages for Distributions.
- Improved support for Windows XP.
- Complete rewrite of the Help System.
- Registered Users now get Electronic Documentation and PDF designed for printing.
- Reports can now be saved to PDF, HTML, RTF and other options from the Preview Menu.
- Other minor improvements/bug fixes...

Note: ESBPDF Analysis does look best with 24 bit Color (or better). It also looks best on Windows XP, though still works on Windows 95 with IE4 or better installed.