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Telerik UI for Blazor




What's Coming in 2023?

The Telerik UI for Blazor Team is excited to announce the new native components, features and tools that will be shipped with Telerik UI for Blazor. 

You can expect the following updates in 2023:

    R3 2023

  • Telerik UI for Blazor 4.4.0 in mid-July
  • Telerik UI for Blazor 4.5.0 due in late August
  • Telerik UI for Blazor 4.6.0 due in mid-October

    We want to thank you for the continuous support and encourage you to keep submitting your ideas and requests on the dedicated Blazor feedback portal , so we can shape the future of Telerik UI for Blazor together!



    Telerik UI for Blazor

    Change in Icons


    As part of our continuous efforts to improve the Telerik and Kendo UI products’ quality, theming mechanism and Content Security Policy (CSP) compliance, we are planning to transition gradually from font icons to SVG icons.

    Step 1: SVG Icons (R1 2023 – January 2023)

    Starting in R1 2023, we introduced and started incorporating SVG icons into Telerik and Kendo UI products. We provided a global configuration setting that enables you to keep the current default font icon type, but also allows you to render SVG icons.

    Step 2: SVG Icons as Default in Telerik and Kendo UI Components (R2 2023 – June 2023)

    With R2 2023, we will perform a change in the default type of icons in Telerik and Kendo UI libraries and components from font to SVG. This change marks the next milestone in a series of improvements related to Content Security Policy (CSP).

    Step 3: Detach Font Icons from Themes (R3 2023 – October 2023)

    With R3 2023, we aim to extract the Font icons as a separate package and detach the inline font declaration from the Telerik and Kendo UI themes.

    Important to note is that the themes will continue to support both font and SVG icons in components, thus allowing you to decide which type of icons to take advantage of. However, using the font icons will require a separate stylesheet to be referenced by clients.

    These last bits of changes will allow us to provide our customers with a more secure and efficient icon system and the option to load and reference only needed resources.

    Read about the strategy for improving Telerik and Kendo UI web component libraries by moving from font icons to SVG icons in the dedicated blog post.

    Design System Documentation


    We launched the new Telerik and Kendo UI design system documentation site containing resources, design assets and frontend documentation for Telerik and Kendo UI libraries.

    This initial release of the Progress Design System site contains related design and frontend documentation for nearly 20 of the most essential components, and we aim to continuously expand it with the ultimate goal of providing everything you need to create intuitive and beautiful digital experiences and design systems based on Telerik and Kendo UI component libraries.

    Our plan is to continuously enhance the design system documentation site throughout 2023 and allow you to easily build your own design system based on Telerik and Kendo UI components.

    New Blazor ListBox UI Component

    New component R3 2023

    The new Blazor ListBox component will enable you to display a list of items in a stylish box. The List Box allows data binding, single and multiple selections of items, sorting, reordering, drag & drop functionality, and more. In addition to the built-in features, the UI for Blazor ListBox will provide multiple configurations and customization options, for its items, toolbar and action buttons.

    Multiple Chart Enhancements

    New feature R3 2023

    The already robust Telerik UI for Blazor Chart will be further enhanced with the following:

    • Pan and zoom in and out into particular segment of a chart
    • New Blazor RangeArea chart
    • New Blazor RangeBar chart
    • New Blazor Waterfall chart
    • Drill down options
    • Expose Label and Expose Legend Click events
    • Control Legend display

    New Blazor Trendline Chart

    New component R3 2023

    In 2023 we plan to expand the existing data visualization collection of UI components and add a Trendline chart type. You will be able to easily illustrate trends in data series and provide charting predictions capabilities to your Blazor applications.

    New DropDownButton UI Component

    New component R3 2023

    Another addition to already large collection of buttons offered within UI for Blazor library is the DropDownButton. The Blazor DropdownButton is a special kind of button that, when clicked, opens a popup with additional items and provide the flexibility to enable or disable content, display icons, and bind data.

    Support for .NET 8 Preview and Official

    Improvement R3 2023

    NET 8 is the successor to .NET 7 and will be supported for three years as a long-term support (LTS) release. The official release is expected in early November 2023 and Telerik UI for Blazor will aim to provide day 0 support for .NET 8. Meanwhile, we are happy to share that we will provide compatibility of the UI for Blazor components with preview versions of the .NET 8 framework, so that you can have all improvements at hand as soon as they are shipped by Microsoft.

    Adaptiveness of UI for Blazor Components

    Improvement R3 2023

    We continue our efforts to improve the adaptive and responsive behavior of the Telerik UI for Blazor components. In our short-term plans, we will enhance the Data Grid, Toolbar, Pager, Window and Breadcrumb UI components so that their design and UX is seamless regardless of the device they are displayed.

    End of Support for .NET 3.1 and .NET 5.0


    As part of our commitment to delivering cutting-edge solutions and providing you with the best possible experience, we will be implementing changes to our support for .NET versions.

    In line with Microsoft's product lifecycle policy, we will be ending the support for .NET 3.1 and 5.0 in Telerik UI for Blazor as of R1 2024. 

    We strongly encourage you to migrate your applications to the latest versions of .NET currently supported by Telerik UI for Blazor: NET 6.0 and .NET 7.0. Upgrading to the latest .NET version will enable you to take full advantage of the latest features, performance improvements, and security enhancements provided by both Microsoft and Telerik.

    TreeView OnDrag Event

    New feature R3 2023

    The UI for Blazor TreeView component will be enhanced with a new event that fires when the drag operation starts and provides details for the dragged tree view item, thus allowing you control and customization options upon reordering items within the TreeView.

    Telerik REPL for Blazor


    The interactive browser-based code runner for Blazor will be further enhanced with new features allowing you to seamlessly run, save and share your own Blazor code snippet.

    AppBar UI Component

    New component

    The new AppBar UI component will come in handy when you need to organize and display information and actions related to app screens.

    Accessibility Improvements

    Improvement R3 2023

    In our upcoming 2023 releases, we will continue with our efforts to improve the overall accessibility of Telerik UI for Blazor components, ensuring compliance with WAI-ARIA, Section 508 and the new WCAG 2.2 standards, as well as providing solid documentation, demos and A11Y related resources.

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