If I remember correctly, you've got only 4 GB RAM, in which case I suggest that you go no further than Mojave, because its minimum RAM is 2 GB, but it's gone up to a 4 GB minimum for Catalina, which might make it a bit tight on your MBP.


The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire