Does a binary built on pi 3 will work on pi 2?

Question

I'm building an app on a raspberry pi 3. I'm using Qt. Will the generated binary work on raspberry pi 2?

Thanks

Answer 1

• If you build for RPi1, CM1 and Zero it will run on any 32-bit OS on any model.
• If you build for 32-bit 2B it will run on 2B, 3B, 3B+, 3A+ or CM3.
• If you build for 3B, 3B+ 3A+ or CM3 it will only run on a model 3 - those are also able to run 64-bit.

Compiler options for Raspberries has the full details.