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Improve upgrade instructions for Bootsnap #44223

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merged 1 commit into from Jan 22, 2022
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Improve upgrade instructions for Bootsnap #44223

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10 changes: 8 additions & 2 deletions guides/source/upgrading_ruby_on_rails.md
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Expand Up @@ -934,8 +934,14 @@ For more information on changes made to Rails 5.2 please see the [release notes]
### Bootsnap

Rails 5.2 adds bootsnap gem in the [newly generated app's Gemfile](https://github.com/rails/rails/pull/29313).
The `app:update` command sets it up in `boot.rb`. If you want to use it, then add it in the Gemfile,
otherwise change the `boot.rb` to not use bootsnap.
The `app:update` command sets it up in `boot.rb`. If you want to use it, then add it in the Gemfile:

```ruby
# Reduces boot times through caching; required in config/boot.rb
gem 'bootsnap', require: false
```

Otherwise change the `boot.rb` to not use bootsnap.

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