The phrase "upgraded form" means something that has been improved and made better than before.
Sentences with «upgraded form»
He wields both the Star Seeker and the Kingdom Key D, along with several upgraded forms of the latter. (khwiki.com)
If You upgrade to a level of Form Simplicity service that permits You to store transaction records on Form Simplicity servers, the revised End User License Agreement that will be required to accept as a condition of receiving such upgraded Form Simplicity services will specify the amount of storage capacity available to You, and the restrictions, if any, on the types or formats of documents that may be stored on Form Simplicity servers. (formsimplicity.com)
A.J. Maciejewski (crazyaejay): Before playing 15, I was looking forward to it because it looked a lot like 12 but now that I'm actually playing 12 again (albeit in upgraded form), it's all coming back to me just how awesome of a game it is. (videochums.com)