# How to hide Ruby 2.7 deprecation warnings system-wide

- URL: https://svyatov.com/blog/how-to-hide-ruby-2-7-deprecation-warnings-system-wide/
- Date: 2020-04-24
- Tags: ruby, rails, rbenv, tutorial

Are you using `rbenv`? Want to hide Ruby 2.7 deprecation warnings system-wide and not to deal with it on a per-project basis? This small tutorial is for you!

All you have to do is create file `~/.rbenv/rbenv.d/exec/hide-deprecations-for-2.7.bash` with the following content:

```bash
# ~/.rbenv/rbenv.d/exec/hide-deprecations-for-2.7.bash

if [[ ${RBENV_VERSION%.*} == '2.7' ]]; then
  export RUBYOPT="-W:no-deprecated -W:no-experimental"
else
  unset RUBYOPT
fi
```

Done.

The [rbenv hooks documentation](https://github.com/rbenv/rbenv/wiki/Authoring-plugins#rbenv-hooks) explains how this works.

I've tested it in Zsh. It should work in Bash, but I can't guarantee it.