Updating gems

I'm updating gems regularly for \d\d years now, but it is still hard to remember related commands. Should I use gem or bundle to upgrade bundle? Is it "update" or "upgrade"? Bwagh!

Updating Bundler:

bundle update --bundler

Note:

• Gemfile.lock may lock Bundler version with BUNDLED WITH value.
• Gemfile.lock may cause an alternative bundler version installation during bundle install.

Update system gems:

gem update --system

Getting gem paths and other environment variables:

gem env

Updating rbenv with Homenrew:

brew update
brew upgrade rbenv

Installing new Ruby version with rbenv:

rbenv install 3.2.2
bundle install

Somewhat related:

• Fixing Ruby environment for non-interactive shells 2026/03/25
• Calling the original instance method after overriding in Ruby 2023/10/23
• Stubbing environment variables in RSpec 2023/08/18
• Downloading CleanShot images with Ruby 2023/08/06
• Updating Ruby with asdf 2023/07/25
• Preserving backtrace during exceptions wrapping in Ruby 2023/07/23
• RSpec snippet for Sublime Text 2023/07/13