QC upgrade from 10 to 12

Is it possible to upgrade our Quality Center from version 10 to 12 directly? Or we need to upgrade to version 11.5 first?

 

When I tried to install the version 12, the database schema upgrade failed saying that the upgrade from version 10 was not supported. 

 

I'd like to know if there is a way to avoid the version 11.5, just to save some working hours.

 

Thanks for any help!

 

P.S. This thread has been moved from Quality Management Best Practices and Methodology to Quality Center Support and News Forum. -HP Forum Moderator

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