How can I use the latest version of Ruby by default?

Question

I am on a Mac running OSX 10.11 El Capitan. I installed Ruby 2.3.1 via rvm. If I type in the terminal

ruby --version

It says that I am running 2.0.0

But if I type

rvm use 2.3.1

And then

ruby --version

It says that I am running 2.3.1

But next time I open terminal it goes back to 2.0.0

How can I use latest version of Ruby by default?

Answer 1

Make a .ruby-version file in a directory of your project and in it put ruby-3.2.1 or which ever version you want

Answer 2

rvm --default use 2.3.1

Documentation here.