what is the latest OS I can run on an Early 2015 MacBook
Still running El Capitan but my daughter doesnt use it so much now so I thought I would rebuild with the latest versions of everything.
MacBook, OS X 10.11
Question marked as
Big Sur (macOS 11.7.3). See the following from Identify your MacBook model - Apple Support
MacBook (Retina, 12-inch, Early 2015)
Colors: Space gray, gold, silver
Model Identifier: MacBook8,1
Part Numbers: MF855xx/A, MF865xx/A, MJY32xx/A, MJY42xx/A, MK4M2xx/A, MK4N2xx/A
Newest compatible operating system: macOS Big Sur
To upgrade, see How to download macOS - Apple Support
Be aware that if you upgrade to Catalina 10.15 or later you will also need to update any non-Apple 32-bit apps. See: https://www.macworld.com/article/232735/how-to-check-if-mac-software-is-32-or-64-bit.html