How to change to an older version of Node.js

I am running Node.js version v0.5.9-pre on Ubuntu 10.10.

I would like to be using version v0.5.0-pre.

How do I roll back to the older version of node?

*NIX (Linux, OS X, ...)

Use n, an extremely simple Node version manager that can be installed via npm.

Say you want Node.js v0.10.x to build Atom.

npm install -g n   # Install n globally
n 0.10.33          # Install and use v0.10.33

Usage:
n                            # Output versions installed
n latest                     # Install or activate the latest node release
n stable                     # Install or activate the latest stable node release
n <version>                  # Install node <version>
n use <version> [args ...]   # Execute node <version> with [args ...]
n bin <version>              # Output bin path for <version>
n rm <version ...>           # Remove the given version(s)
n --latest                   # Output the latest node version available
n --stable                   # Output the latest stable node version available
n ls                         # Output the versions of node available

Windows

Use nvm-windows, it's like nvm but for Windows. Download and run the installer, then:

nvm install v0.10.33         # Install v0.10.33
nvm use v0.10.33             # Use v0.10.33

Usage:
nvm install [version]        # Download and install [version]
nvm uninstall [version]      # Uninstall [version]
nvm use [version]            # Switch to use [version]
nvm list                     # List installed versions

One way is to use NVM, the Node Version Manager.

Use following command to get nvm

curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.34.0/install.sh | bash

You can find it at https://github.com/creationix/nvm

It allows you to easily install and manage multiple versions of node. Here's a snippet from the help:

Usage:
nvm install <version>       Download and install a <version>
nvm use <version>           Modify PATH to use <version>
nvm ls                      List versions (installed versions are blue)

Update: Updated the answer because previous one was not relevant.

Follow below steps to update your node version.

1. Install nvm For this run below command in your terminal

curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.37.2/install.sh | bash

Note: If above command did not work for you can choose another option to install it. I have added an answer for this here

2. Install specific node version using nvm

For this run

Replace 12.14.1 with your node version

nvm install 12.14.1

Note: If you are getting error of NVM not recognised then run below command and then run above again

source ~/.nvm/nvm.sh

3. Make the installed version default

Note: Replace 12.14.1 with your installed version.

nvm alias default 12.14.1

and

nvm use 12.14.1

4. Check node version

node -v

And that's it. Cheers!

Extra

To check list of installed node versions -- run below command

nvm ls 

Why use any extension when you can do this without extension :)

Install specific version of node

sudo npm cache clean -f
sudo npm install -g n
sudo n stable

Specific version : sudo n 4.4.4 instead of sudo n stable