Looking to upgrade fromom PHPBB3

[JMSetzler]

I have read through the system requirements and licencing agreement information that is posted here. I'm trying to find out what people do when tasked with an upgrade of an existing system to vBulletin when the licensing agreement makes it clear that only a single instance of the software may be in use. What methods do you use to set up a test environment to test the upgrades and change implementations prior to going live? I could not find any information regarding setting up a separate test environment with a single licence in this context.

[Wayne Luke]

The license agreement specifically allows 1 public instance and a development/staging instance that is not available to the public.

[JMSetzler]

Thanks for the feedback. That is reasonable and I'm not sure how I missed it...