--- title: "What’s New in Blazor 2025 Volume 4: Performance Enhancements and Key Updates" published_at: "2025-12-23T18:23:12+00:00" modified_at: "2026-01-29T18:40:25+00:00" url: "https://www.syncfusion.com/blogs/post/whats-new-blazor-components-2025-vol4" excerpt: "Discover what’s new in Blazor 2025 volume 4 with .NET 10 support, improved UI components, and major performance enhancements for modern web apps." taxonomy_category: - ".NET 10" - "Blazor" - "UI components" - "Web Development" - "What's new" taxonomy_post_tag: - ".NET 10" - "Blazor" - "Developer Tools" - "performance" - "UI Enhancements" --- # What’s New in Blazor 2025 Volume 4: Performance Enhancements and Key Updates [Rajendran R](https://www.syncfusion.com/blogs/author/rajendranr) ![What’s New in Blazor 2025 Volume 4: Performance Enhancements and Key Updates](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Whats-New-in-Blazor-2025-Volume-4-Performance-Enhancements-and-Key-Updates.jpg) **TL;DR:** Blazor 2025 Volume 4 introduces .NET 10 support, enhanced UI components, and optimized performance for DataGrid, TreeGrid, and other controls, boosting developer productivity. The [Essential Studio® 2025 Volume 4](https://www.syncfusion.com/products/whatsnew) release of [Syncfusion Blazor](https://www.syncfusion.com/blazor-components) is all about **performance**, ** developer productivity**, and ** platform alignment**. This update brings: - **Full .NET 10 support** for seamless integration with the latest ASP.NET Core runtime and language features. - **Chat UI graduated to production-ready** for building modern conversational interfaces. - **New Block Editor (Preview)** for structured content creation. - Targeted enhancements across **Charts, DataGrid, TreeGrid, Diagram, File Manager, Gantt Chart, Rich Text Editor,** and**Scheduler**. If you build data‑heavy, interactive, or real‑time applications, these updates reduce friction and help you ship reliable experiences faster. ## Why this release matters This release delivers significant enhancements that empower developers to build faster, richer, and more collaborative applications with less effort. - Alignment with .NET 10 and ASP.NET Core features. - Measurable performance gains in DataGrid and TreeGrid. - Richer charts and templating without custom code. - Improved Rich Text Editor usability. - AI AssistView for streamlined prompt composition. - Collaborative Diagram editing with real-time SignalR sync. - Better developer ergonomics through templates, events, and predictable APIs. ## General update ### .NET 10 support All Syncfusion Blazor components now support .NET 10 for development, build, and runtime. ## New Component ### Block Editor (preview) For this release, we have introduced a new [Block Editor](https://www.syncfusion.com/blazor-components/blazor-block-editor) component that offers a modern, block‑based authoring experience for creating structured content. It supports multiple block types, slash commands, rich text formatting, inline content, undo/redo, and extensibility through events. Key features include: - **Multiple block types:** Headings, paragraphs, lists, checklists, quotes, callouts, dividers, tables, images, and toggle blocks. - **Slash commands:** Quickly insert and switch between blocks using intuitive slash commands. - **Rich text and inline content:** Apply formatting and embed inline elements with ease. - **Undo/redo and extensibility:** Built-in undo and redo support with event-driven extensibility for customization. Easily get started with the Blazor Block Editor using a few simple lines of C# code, as shown below. ``` ``` ![Blazor Block Editor](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Blazor-Block-Editor-1.png) Blazor Block Editor **Note:** For hands-on experience, refer to the [demo](https://blazor.syncfusion.com/demos/block-editor/overview?theme=fluent2) , [documentation](https://blazor.syncfusion.com/demos/diagram/collaborative-editing) , and [API reference](https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.BlockEditor.SfBlockEditor.html) . ## Production‑ready Component ### Chat UI The [Chat UI](https://www.syncfusion.com/blazor-components/blazor-chat-ui) component is now production‑ready. It provides a responsive chat interface with real‑time messaging and a customizable design. The new **File Attachments** feature enables users to upload and send files, with inline image previews and secure downloads. For more details, explore the [demo](https://blazor.syncfusion.com/demos/chat-ui/attachments?theme=fluent2) . ## Other key enhancements Here’s a closer look at the major enhancements across components. ### DataGrid enhancements This release brings performance and layout improvements to the [Blazor DataGrid](https://www.syncfusion.com/blazor-components/blazor-datagrid) . #### Performance improvements The Blazor DataGrid is optimized for faster initial rendering and grouping with virtualization. - **Initial rendering**: Approximately 22.9% reduction. - **Grouping**: Approximately 98.0% reduction. - **Grouping****(expand all):** Approximately 97.4% reduction. #### Row and column span Merge adjacent identical cells vertically, horizontally, or both to improve readability. View the [demo](https://blazor.syncfusion.com/demos/datagrid/row-and-column-spanning) for a detailed walkthrough. Here’s a preview of the feature in Data Grid. ![Row and Column Span in Blazor DataGrid](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Row-and-Column-Spanning-feature-in-Blazor-DataGrid.png) Row and Column Span in Blazor DataGrid ### TreeGrid improvements The [Blazor TreeGrid](https://www.syncfusion.com/blazor-components/blazor-tree-grid) has been updated with several powerful features and improvements. Let’s take a closer look: #### Row and column spanning Cell merging is identical to DataGrid for hierarchical datasets. ![Row and Column Span in Tree Grid](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Row-and-Column-Spanning-feature-in-Blazor-Tree-Grid.png) Row and Column Span in TreeGrid #### Custom sorting and custom aggregates This feature provides custom comparison logic and tailored summaries. Refer to the demos of [custom sorting](https://blazor.syncfusion.com/demos/tree-grid/customsorting) and [custom aggregate](https://blazor.syncfusion.com/demos/tree-grid/custom-aggregate) for additional insights. #### Remote data with virtualization Load‑on‑demand virtualization with remote data binding. Discover more in the [demo](https://blazor.syncfusion.com/demos/tree-grid/remote-data-with-virtualization) . #### Column chooser template and stacked header Customize the column chooser layout and use stacked headers in the same sample. Find out more in the live [demo](https://blazor.syncfusion.com/demos/tree-grid/stacked-header) . Here’s a quick demo of the feature in action. ![Column chooser Template in Blazor Tree Grid](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Column-Chooser-Template-and-Stacked-Header-feature-in-Blazor-Tree-Grid-1.gif) Column chooser Template in Blazor TreeGrid ### Rich Text Editor enhancements The [Blazor Rich Text Editor](https://www.syncfusion.com/blazor-components/blazor-rich-text-editor) now features additional enhancements for a smoother and more intuitive editing experience. #### Markdown auto‑formatting Inline and block markdown are auto‑formatted as you type. Learn more by exploring the [demo](https://blazor.syncfusion.com/demos/rich-text-editor/overview?theme=fluent2) . Here’s a quick demo of the feature in action. ![Markdown auto‑formatting in Blazor’s Rich Text Editor](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Column-Chooser-Template-and-Stacked-Header-feature-in-Blazor-Tree-Grid.gif) Markdown auto‑formatting in Blazor’s Rich Text Editor #### Line height and checklist Control line height and insert interactive checklists. View the [demo](https://blazor.syncfusion.com/demos/rich-text-editor/overview?theme=fluent2) for a detailed walkthrough. Here’s a preview of the feature in action. ![Line Height and Checklist features in Blazor Rich Text Editor](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Line-height-and-checklist-feature-in-Blazor-Rich-Text-Editor.gif) Line Height and Checklist features in Blazor Rich Text Editor #### Drag‑and‑drop media Drop videos and audio files directly into the editor. Get hands-on with the [demo](https://blazor.syncfusion.com/demos/rich-text-editor/insert-media?theme=fluent2) for full details. #### Clipboard cleanup Strip unwanted inline styles during copy/cut for cleaner HTML. #### Authorization headers and HttpClient Attach tokens for secure Word/PDF export and use a custom HttpClient instance for configurable uploads. ### Diagram enhancements The [Blazor Diagram](https://www.syncfusion.com/blazor-components/blazor-diagram) component has the following upgrades. #### Collaborative editing Multi‑user, real‑time synchronization for edits; changes are applied instantly across clients. Get hands-on with the [documentation](https://blazor.syncfusion.com/demos/diagram/collaborative-editing) for full details. This GIF illustrates the feature’s step-by-step operation. ![Collaborative Editing feature in Blazor Diagram](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Collaborative-Editing-feature-in-Blazor-Diagram.gif) Collaborative Editing feature in Blazor Diagram #### Force‑directed tree layout Physics‑based layout that reduces overlaps and clarifies complex graphs. Discover more in the [demo](https://blazor.syncfusion.com/demos/diagram/force-directed-layout) . #### Restrict node dragging within the swimlane Constrain node movement to the assigned swimlane for structured workflows. ### AI Assist View enhancement #### Footer toolbar This release introduces a footer toolbar for seamless composition, featuring single-line and multi-line modes, built-in actions (Send, Attach, Clear), and support for custom items. Developers can define order, icons, tooltips, disabled states, and click handlers. The toolbar supports inline or bottom placement. Check the [demo](https://blazor.syncfusion.com/demos/ai-assistview/ai-models?theme=fluent2) for additional insights. Here’s what the Footer toolbar looks like. ![Footer Toolbar feature in Blazor AI Assist View](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Footer-Toolbar-feature-in-Blazor-AI-Assist-View-1.png) Footer Toolbar feature in Blazor AI Assist View ### Charts enhancements [Blazor Charts](https://www.syncfusion.com/blazor-components/blazor-charts) now comes packed with new features designed to elevate your data visualization experience and give you unmatched customization options. #### Legend templates Customize legend item content per series/item for Charts and Accumulation Charts. Find out more in the live [demo](https://blazor.syncfusion.com/demos/chart/chart-legend-template?theme=fluent2) . ![Legend Templates feature in Blazor Charts](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Legend-Templates-feature-in-Blazor-Charts.png) Legend Templates feature in Blazor Charts #### Linear and radial gradients Apply gradients to series, legend items, markers, tooltip markers, trendlines, and indicators in Charts and Stock Chart. View the [demo](https://blazor.syncfusion.com/demos/chart/bar-with-gradient?theme=fluent2) for a detailed walkthrough. ![Linear and Radial Gradients feature in Blazor Charts](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Linear-and-Radial-Gradients-feature-in-Blazor-Charts.jpg) Linear and Radial Gradients feature in Blazor Charts #### Stripline tooltip Show contextual tooltips on striplines to highlight thresholds and time windows. Dive into the [demo](https://blazor.syncfusion.com/demos/chart/strip-line?theme=fluent2) to learn more. ### File Manager enhancements #### Templates for large Icons view and Navigation pane Customize item cards and navigation nodes with thumbnails, metadata, and actions to enhance user experience. You can explore the [demo](https://blazor.syncfusion.com/demos/file-manager/template) for more details. ![Templates for Large Icons View and Navigation Pane in Blazor File Manager](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Templates-for-Large-Icons-View-and-Navigation-Pane-feature-in-Blazor-File-Manager.png) Templates for Large Icons view and Navigation pane in Blazor File Manager #### Sequential upload Upload files and folders sequentially for predictable processing and lower server load. Learn more by exploring the [demo](https://blazor.syncfusion.com/demos/file-manager/sequential-upload) . ### Gantt Chart enhancements #### Undo/redo Revert or reapply recent changes to preserve workflows. Get hands-on with the [demo](https://blazor.syncfusion.com/demos/gantt-chart/undo-redo) for full details. #### Column validation Validate on add/edit to prevent invalid entries. Learn more by exploring the [demo](https://blazor.syncfusion.com/demos/gantt-chart/column-validation) . Take a look at how this functionality behaves. ![Column validation feature in Blazor Gantt Chart](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Column-validation-feature-in-Blazor-Gantt-Chart.png) Column validation feature in Blazor Gantt Chart ### Scheduler enhancement #### Custom toolbar Add, remove, and reorder built‑in or custom items using a non‑generic toolbar inside SfSchedule. Find out more in the [demo](https://blazor.syncfusion.com/demos/scheduler/header-bar) showcase. Quick start example. ``` ``` After running the code, you’ll see this. ![Image](https://www.syncfusion.com/blogs/wp-content/uploads/2025/12/Custom-toolbar-feature-in-Blazor-Scheduler.png) Custom toolbar feature in Blazor Scheduler ## Conclusion Thanks for reading! The [Essential Studio 2025 Volume 4](https://www.syncfusion.com/products/whatsnew) release aligns Syncfusion Blazor with .NET 10, promotes critical components to production readiness, and introduces features that simplify complex UIs and large‑data scenarios. For a hands-on look, explore our [online demo](https://blazor.syncfusion.com/demos/) and [documentation](https://blazor.syncfusion.com/documentation/introduction) of the Blazor components. You can check out our [Release Notes](https://help.syncfusion.com/common/essential-studio/release-notes/v32.1.19) and [What’s New](https://www.syncfusion.com/products/whatsnew) pages for the other updates in this release and provide your feedback in the comments below. If you’re a Syncfusion user, you can download the setup from the [license and downloads](https://www.syncfusion.com/account/downloads) page. Otherwise, you can download a free [30-day free trial](https://www.syncfusion.com/downloads) . You can also contact us through our [support forum](https://www.syncfusion.com/forums) , [support portal](https://support.syncfusion.com/) , or [feedback portal](https://www.syncfusion.com/feedback/maui) for queries. We are always happy to assist you! ## Related Blogs [Angular Block Editor Now Supports Table Blocks in 2025 Volume 4](https://www.syncfusion.com/blogs/post/table-block-angular-block-editor) [Blazor Rich Text Editor Just Got Better with Markdown and Secure Exports](https://www.syncfusion.com/blogs/post/blazor-rich-text-editor-2025-volume-4) [Essential Studio 2025 Volume 4: What’s New in PDF Viewer and DOCX Editor SDKs](https://www.syncfusion.com/blogs/post/pdf-viewer-docx-editor-2025-vol4) [Essential Studio 2025 Volume 4: What’s New in PDF, Word, Excel & PowerPoint Libraries](https://www.syncfusion.com/blogs/post/whats-new-document-sdk-2025-volume-4)