How to change Ruby version?

Question

ruby

The virtual machine is running Debian 8. Ruby was running 2.3.3. Installed 2.5.1. I type ruby ​​-v, it says that 2.3.3 is installed. You need to throw the project on Heroku, and there it is not supported below 2.5.

Answer 1

Use RVM , Luke. (c)

Answer 2

rvm use 2.5.1
https://rvm.io/rvm/basics
and in general there are chruby or direnv. I didn’t see publications in Russian about direnv at all, although the thing is very convenient.

Answer 3

Use RBENV . =)