macOS Big Sur 11.2.3 on a late 2009 MacBook : r/mac
It's old as heck but still kicking! Mid 2009 MacBook Pro (MacBook Pro 5,5) I'm hoping to use opencore legacy patcher to install Monterey on it. : r/ macbookpro
2009 Macbook Pro CPU upgrade? | MacRumors Forums
Apple MacBook (multi-touch white 2009) review: Apple MacBook (multi-touch white 2009) - CNET