Apt installs ruby v2 3 1.
Brew update ruby.
This should install the latest ruby version.
If ruby is already installed run brew upgrade ruby to upgrade to the latest version.
Homebrew is package manager for macs which makes installing lots of different software like git ruby and node simpler.
Installing ruby using homebrew is easy.
Run brew install ruby.
Installing homebrew on a mac installation.
Brew install ruby.
With this homebrew will go out and fetch not only ruby but also any dependencies ruby needs to run.
We will be setting up a ruby on rails development environment on macos 10 14 mojave.
To uninstall follow the directions listed here.
Alright so now that homebrew is installed we can use it to install a newer version of ruby.
It s all git and ruby underneath so hack away with the knowledge that you can easily revert your modifications and merge upstream updates.
This will take about 30 minutes.
Use the package manager to install ruby.
Homebrew macos ruby versions 2 0 and above are included by default in macos releases since at least el capitan 10 11.
The command is pretty straightforward.
Debian or ubuntu 16 04.
Homebrew lets you avoid possible security problems associated with using the sudo command to install software like node.
Older versions of os x are mostly compatible so follow along as far as you can and then google search for any problems you run into.