If you are running a 64-bit version of Windows you will require both updates.
Tedds 2018 - Service Pack 3
Steel/Timber Beam analysis & Design
[TEDDS-143]1 - Fixed unhandled exception when opening the combination generator when Windows text size setting is greater than 100%.
[TEDDS-191]1 - Fixed "Null reference" exception in the single design member user interface, geometry tab if a new section is selected and then the "Edit..." command is used before committing the new span.
[TEDDS-203]1 - Enhanced to include an option in the single member user interface to disable the ability to edit sections.
[TEDDS-229]1 - Fixed unhandled exception in the single member user interface, geometry tab when the section list is navigated using the keyboard and the enter key is pressed on the "Select..." or "Edit..." commands.
[TEDDS-230]1 - Enhanced to include an option in the single member user interface to disable the option to rotate the member.
[TEDDS-296]1 - Fixed undefined variable error when using the load combination generator if a duplicate combination is created but with different factor values.
[TEDDS-369]1 - Fixed dialog for defining Timber and RC sections laying out controls incorrectly when windows text size setting is greater than 100%.
Tedds for Word
[TEDDS-147]1 - Fixed Section Designer application crashing when inserting a predefined "Custom" shape.
Library Access System
[TEDDS-195]1 - Fixed preview window not redrawing correctly if it was dragged partially off screen and then back again.
[TEDDS-066]1 - New function "RoundUp" which returns a number rounded up to the specified number of digits and "RoundDown" which returns a number rounded downd to the specified number of digits.
[TEDDS-300]1 - New function "EvalCalcItemIfExists" which will attempt to evaluate a Calc Item if it exists but will not error if it does not.
[TEDDS-016]1 - Fixed the "Find" command not working when the Preview window is the active window.
[TEDDS-049]1 - Fixed the preview window not automatically resizing when the page size is changed from Medium to Large.
[TEDDS-050]1 - Fixed Edit controls being shown with a grey background not white.
[TEDDS-064]1 - Fixed some interfaces not being laid out correctley in the preview window.
[TEDDS-159]1 - Fixed the "Layout" property for Page Groups showing the incorrect number of placeholders for each system defined template.
[TEDDS-197]1 - Fixed the User Interface command in Tedds for Word sometimes reporting the error "Action Close Failed" when editing of the user interface is completed.
[TEDDS-285]1 - Enhanced to include a new "Column break" layout control which will automatically skip all the remaining placeholders in the current column so that the next control appears at the top of the next column.
[TEDDS-125]1 - Improved the naming of Tedds API function arguments for better intellisense support in Microsoft Visual Studio.
[TEDDS-307]1 - Enhanced calculation user interface input controls Edit, EditUpDown, EditDropList, DropList and CheckBox to automatically support read only variables. If the associated input variable has the read only "r" attribute enabled then the input control will automatically be read only and the user will not be able to change the input.
[TEDDS-381]1 - Enhanced to hide calculation user interfaces if "_CalcUI = -1". Some calculations included a CAlc API which will allows the calculation to be run in Design Check Mode when _CalcUI = -1 and completely disables the user interface. All calculations can be run with -1 (rather than 0) and those which do not have a dedicated Calc API will still hide their user interface (unless the input validation fails).
1 This number is an internal reference number and can be quoted to your local Support Department should further information on an item be required.