Rails gems cheatsheet

A few recommendations before getting to the crux of the content:

• Opt for incremental updates over bulk changes. This approach reduces the surface area for things to go wrong
• Use bundler to manage your project’s dependencies

Updating patch versions

bundle update --patch <name of gem>

To prevent updating indirect dependencies restrict the updates, add the --conservative flag.

Updating minor versions

bundle update --minor <name of gem>

Updating major versions

You guessed it -

bundle update --major <name of gem>

Update groups of gems

Sometimes, you may want to update specific groups of gems, such as your development or testing gems.

bundle update --group development

See which gems are out of date

bundle outdated --groups