According to the attached report, the production of the C7 Z06 has been halted until the overheating fix is finalized. When production resumes, the new cars will have the fix already installed, but the article insinuates that owners of the previous version will have to pay for the fix via a retrofit.
2017 Chevrolet Corvette Z06 overheating fix on the way - Autoblog
This would make sense for the discounts on models currently sitting on lots.
And you guys bitched about hot oil since 2009...