The Minitab Express 1.1.1 software update addresses critical compatibility issues between OS X Yosemite (OS X 10.10) and the single-user license version of Minitab Express 1.1.0 for Mac. It is imperative that Minitab Express users apply this update before installing OS X Yosemite to avoid licensing errors which will prevent access to Minitab Express.
If you are attempting to install the Minitab Express 1.1.1 update after installing OS X Yosemite, you must open Minitab Express in unlicensed mode to apply the update. To open Minitab Express 1.1.0 in unlicensed mode:
If you experience difficulty launching Minitab Express, please contact Minitab Technical Support for assistance.