Sitefinity® CMS 15.4 Update is Here—Built for What's Next
March 24, 2026
Leverage content classifications during search to deliver more relevant, higher-quality results across Sitefinity AI Assistant, Dynamically Generated Experiences, and Sitefinity widgets powered by Progress Agentic RAG. (584414)
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Sitefinity AI Assistant is powered by Sitefinity Agentic RAG (582349)
Sitefinity AI Assistant delivers a CMS‑native conversational experience powered by Agentic RAG for governed retrieval, reasoning, and grounded, trustworthy answers.
Sitefinity AI Assistant now enables in‑context user feedback on chat responses, allowing teams to measure satisfaction and continuously improve AI‑driven conversations (562527)
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The Agentic RAG based Search widgets for the Next.js Renderer now include ready‑to‑use samples for building dynamic AI‑powered search experiences on decoupled frontends (579377)
The included samples help developers and partners accelerate implementation, explore supported API patterns, and understand recommended UI compositions for AI‑driven search experiences in Next.js projects. They demonstrate how to integrate Progress Agentic RAG capabilities into Next.js based Sitefinity sites through these reusable Search widgets:
AI ask box widget – allows visitors to input natural-language queries
AI answer widget – displays concise and relevant AI-generated answers
AI search results widget – presents reference sources as part of AI-generated answers
Sharing providers between instances does not work for related data (571298)
Search: Failure of Reindex task for Azure AI Search index (582982)
Site Sync: Replaced media content is not marked for sync when using scheduled publish (583024)
Chunked Upload: Cannot replace documents when chunked upload is enabled (576711)
Chunked Upload: Cannot revert media items through revision history when chunk upload is enabled (567329)
ASP.NET Core Renderer: Content List widget with custom events filter applied throws an error No applicable method 'now' exists in type 'Event' (579866)
Page Templates: Top and bottom padding appears as None right after changing layout to multiple columns (581769)
Navigation: Error is thrown for non-restricted pages (582957)
Admin App: Content List widget of dynamic module, when provider is shared in multisite setup, shows non-translated items (574664)
ASP.NET Core Renderer: Content List widget with custom events filter applied throws an error No applicable method 'now' exists in type 'Event' (579866)
ASP.NET Core Renderer: Display per Role functionality in Section widget returns only 50 roles (582507)
ASP.NET Core Renderer [Forms]: IList<ComplexObject> in form field does not work (579809)
ASP.NET Core Renderer: Downloading document with Cyrillic character in filename throws an exception (577105)
ASP.NET Core Renderer: ASP.NET Core page template is showing up as MVC page template when selecting it in the backend (582071)
Special characters for Section names in dynamic modules do not render correctly when creating dynamic item (579613)
Filter not preserved in Pages grid after page edit (581045)
Performance improvements with the Backend search index when filterQueriesByViewPermissions is enabled (547730)
Next.js Renderer: Page templates are displayed with unexpected MVC label (583826)
Next.js Renderer: Redirect pages with incorrect URL resolution (583864)
Next.js Renderer [Pages]: Infinite loop when home URL is set to redirect permanently to the site root (582471)
Missing null check for content location filter values (584137)
Improve cache invalidation for Data Access L2 cache in NLB setup to ensure output cache is not created with stale data (584078)
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