How do I install the latest version of Arnold (MtoA 3.0.1.1)?

Before downloading and installing MtoA 3.0.1.1, ensure Maya 2018.3 has been downloaded and installed.

Navigate to Arnold Renderer Website.
Select the Arnold tab.
Select the Downloads tab.
Select Maya 2018 under the MAC OS X section.
Select the Login or Create New Account button.
Sign in using your Autodesk account.
Populate the box for 'I have read and agree to the terms of the EULA' if you agree. Then select Download.
Download the plugin to your computer.
Open MtoA-3.0.1.1-darwin-2018.pkg.
Select Continue on the installation window.
Select Continue.
If you agree to the Terms and Conditions, select Agree.
Select Continue.
Select Install.
Use computer password or fingerprint to authorize installation.
Once the install is complete, select Close.
MtoA 3.0.1.1 has been installed.