Posted 12 February 2026, 12:21 pm EST
The ComponentOne 2025 v2.1 Maintenance Release is now available. This release includes critical bug fixes related to the 2025 v2 release, small improvements, and a significant licensing change that impacts all active subscribers. Read more below.
Download the update: https://developer.mescius.com/componentone/download
Breaking Change with Your License
As part of recent improvements, our licensing code has also changed. Because of this change, after you download and install the latest version, you’ll need to reactivate your license to continue developing without interruption.
See how to reactivate your license: https://developer.mescius.com/componentone/docs/license/online-license/activating-serial-key#reactivate-a-serial-key-using-the-c1controlpanel
Release History - see bug fixes and small improvements
*WinForms - https://developer.mescius.com/componentone/docs/win/online-releasehistory/releasehistory/2025-v2-1
*WPF - https://developer.mescius.com/componentone/docs/wpf/online-releasehistory/releasehistory/2025-v1-2
*ASP.NET Core - https://developer.mescius.com/componentone/docs/mvc/online-mvc/ReleaseHistory/2025-v2
*Blazor - https://developer.mescius.com/componentone/docs/blazor/online-blazor/release-history/2025-v2-1
*WinUI - https://developer.mescius.com/componentone/docs/winui/online-winui/release-history/2025-v2-1
*.NET MAUI - https://developer.mescius.com/componentone/docs/maui/online-maui/releasehistory/2025-v2-1
