How To Update Matlab 2019b To 2021a

How To Articles

I remember the excitement I felt when I heard that MATLAB was releasing a new version, MATLAB 2021a. As someone who relies heavily on MATLAB for my work, I couldn’t wait to explore the new features and improvements that this update would bring. In this article, I will guide you through the process of updating MATLAB 2019b to MATLAB 2021a, so you too can experience the benefits of the latest version.

Step 1: Check System Requirements

Before proceeding with the update, it is important to ensure that your system meets the minimum requirements for MATLAB 2021a. The MathWorks website provides detailed information on the system requirements, including the supported operating systems, processors, and RAM. Make sure that your system meets these requirements to guarantee a smooth update process.

Step 2: Back Up Your Files

Before making any changes to your MATLAB installation, it is always a good idea to back up your files. This includes any MATLAB scripts, toolboxes, and customizations that you have made. By creating a backup, you can easily restore your previous MATLAB setup in case any issues arise during the update process.

Step 3: Download MATLAB 2021a

Once you have confirmed that your system meets the requirements, it’s time to download MATLAB 2021a. Visit the MathWorks website and log in to your MathWorks account. Navigate to the Downloads section and select the MATLAB release you wish to download. Follow the on-screen instructions to initiate the download and save the installer file to your computer.

Step 4: Run the Installer

Locate the downloaded installer file and double-click on it to run the MATLAB installer. The installer will guide you through the update process, prompting you to choose the installation folder and any optional components you wish to include. It is recommended to select the default options unless you have specific requirements.

Step 5: Activation and License

During the installation process, you will be prompted to activate MATLAB 2021a and enter your license information. If you have a valid license for MATLAB, enter the license number and activation key when prompted. If you are using a trial version, you can choose the “Activate Trial” option. Follow the on-screen instructions and wait for the activation process to complete.

Step 6: Migration and Compatibility

After successfully installing MATLAB 2021a, it is important to ensure that your existing MATLAB code and projects are compatible with the new version. MATLAB provides a Migration Guide that outlines the changes and potential compatibility issues between different releases. Carefully review the migration guide and make any necessary modifications to your code to ensure smooth functionality in MATLAB 2021a.


Updating MATLAB from version 2019b to 2021a opens up a world of new possibilities and enhancements. By following the steps outlined in this article, you can seamlessly update your MATLAB installation and take advantage of the latest features and improvements. Remember to check the system requirements, back up your files, and review the migration guide to ensure a successful update. Happy coding!