Based on WWDC 2020 and the macOS 11 Big Sur update, it looks like you'll need a Macbook Pro Late 2013 which I read about from another source.
Here's the entire compatability list:
2015 and later MacBook
2013 and later MacBook Air
2013 and later MacBook Pro
2014 and later Mac mini
2014 and later iMac
2017 and later iMac Pro
2013 and later Mac Pro
Big Sur jumps a year to two years ahead for hardware compatibility (depending on the Mac) compared to macOS Catalina.
m_droz
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