DevExpress typically offers trials for the latest version on their main site. However, if you specifically need v21.2 for testing compatibility with an older project:
To install version 21.2, you will use the (e.g., DevExpressNETProducts-21.2.15.exe ). It is a GUI wizard that simplifies the process for all .NET products. You should run the installer as an administrator for best results and follow these steps:
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Accept the license agreement, click Next , and let the installer integrate the components into your local Visual Studio toolbox.
In 21.2, DevExpress doubled down on Blazor, moving it from "experimental" to "enterprise-ready."
New server-side document processing capabilities for web apps. DevExpress typically offers trials for the latest version
. Because DevExpress operates on a subscription model, the availability of version 21.2 depends on the user's account permissions: Licensed Users
: While DevExpress primarily promotes its latest version (e.g., v23.x or v24.x) for new trials, developers can often request specific older versions for compatibility testing by contacting their support team. NuGet Packages
Once you have the legitimate installer, follow these best practices. You should run the installer as an administrator
Click on the link for the DevExpress Universal Installer executable ( .exe ). Your download will begin automatically.
Open the NuGet Package Manager for your solution, search for the required 21.2 components (e.g., DevExpress.Win.Grid ), and click . Installation and Activation
Why choose 21.2 over 24.1? Because . Version 21.2 is no longer receiving new features (it entered the "Sustaining Phase" in early 2024), but it is receiving critical security patches.
If you only need specific libraries for a project rather than the full IDE integration (Toolbox, Wizards), you can use the . How to install and upgrade components - DevExpress Support
After running the installer, you need to embed a license string. Do not manual-edit the licenses.licx file. Instead, use the (start menu > DevExpress > License Manager). Point it to your .sln file. It will automatically inject the correct metadata for 21.2.