During times of rapid development and frequent releases, this auto fallback version may not be very stable. A developer may therefore choose to designate a particularly significant past version of the program as a special alternative fallback. The web page for application releases offers the option of making one of these special fallbacks. To run a fallback version, select start fallback in StartUp's diagnostic menu. If more than one fallback version exists, StartUp allows you to choose the auto fallback or other fallback and shows you the date of each version.
Developers can make their own arrangements for making development versions available to others.
It is used to make a development version publicly available. Review of programs at this point is optional. Once a development release version is adequately tested, it should be released as the operational version . The goal should be to test development versions quickly and then make them the new operational versions. Sometimes applications have new features that can not be adequately tested in the development environment.