This assumes you have done the following:

• Created a new edition of an application 
• Setup routing rules
• Validated the edition

Activation of an edition is nearly identical to validation, with the exception that you select "Activate" instead of "Validate".

It is possible to have two or more editions of the same application active at the same time (concurrent activation). For example, both editions 1.0 and 2.0 can be active at the same time. You would then set up routing rules to route certain users or groups to edition "a" and to route certain users or groups to edition "b".