Easy way to change Ruby version in Mac, M1, M2 and M3

luizgadao

Luiz Gadão

Posted on June 21, 2024

Easy way to change Ruby version in Mac, M1, M2 and M3

I had some problems updating and installing Ruby on my Mac, which made it difficult to configure essential tools like CocoaPods for my daily work. Here's a guide to help you change your Ruby version easily. I spent 90 minutes figuring this out, but with this guide, you should be able to set up your environment in just 5 minutes.

Step 1: Install Homebrew

If you don't have Homebrew installed on your Mac, paste this line into your terminal to install it:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
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Step 2: Install rbenv

rbenv is a simple tool to manage Ruby versions, similar to SDKMAN for Java. To install rbenv, use the following command:

brew install rbenv ruby-build
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Step 3: Initialize rbenv

To start rbenv, run:

rbenv init
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Maybe you need restart your sheel or open a new terminal window, but for me, it wasn't necessary.

Step 4: Check Your Current Ruby Version

To check your current Ruby version, use:

ruby -v
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Example output:

ruby 2.6.10p210 (2022-04-12 revision 67958) [universal.arm64e-darwin23]
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Step 5: Install a Newer Ruby Version

To see the available Ruby versions, run:

rbenv install -l
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Example output:

3.1.6
3.2.4
3.3.3
jruby-9.4.7.0
mruby-3.3.0
picoruby-3.0.0
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To install and set up a newer version, for example, version 3.3.3, use:

rbenv install 3.3.3
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After donwloaded and intalled a ruby version, use:

rbenv global 3.3.3
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Step 6: Verify Your Ruby Version

Now, check your Ruby version again:

ruby -v           
ruby 2.6.10p210 (2022-04-12 revision 67958) [universal.arm64e-darwin23]
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If it still shows the old version, don't worry. Here's a tip:

Step 7: Update Your .zprofile

Open your .zprofile file and add the following lines:

export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init - zsh)"
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Save the file. To apply the changes, either open a new terminal window or reload the profile with:

source .zprofile
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Check again your ruby version, just run the command bellow and you will see the current version of Ruby in your Mac.

ruby -v
ruby 3.3.3 (2024-06-12 revision f1c7b6f435) [arm64-darwin23]
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Now your Mac is ready to install CocoaPods or any other tools you need for iOS development.
🇧🇷🧑🏻‍💻

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luizgadao
Luiz Gadão

Posted on June 21, 2024

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