Release History

Progress® Telerik® Reporting 2026 Q2 (20.1.26.707)

July 8, 2026

Content Security Policy Compliance for HTML5 Report Viewers

NEW

• HTML5-based report viewers now support strict Content Security Policy (CSP) environments through a nonce-based approach for trusted script execution. This enhancement enables customers to meet modern security requirements while preserving the full interactive reporting experience

What's Improved

NEW

• Notification pop-ups in the Web Report Designer can now be closed manually.
• Deployed examples now include a CSP configuration project for the HTML5 Report Viewer.

Configuration

FIXED

• A vulnerable SQLite version is referenced by the .NET implementation.

Standalone Report Designer

FIXED

• A NullReferenceException is thrown when previewing a report book with externally styled child reports.

Standalone Report Designer for .NET 8 and above

FIXED

• Empty reports are created when connected to Report Server for .NET.
• Reports cannot be created when connected to Report Server for .NET.
• Data Explorer does not show SqlDataSource's available fields when connected to Report Server for .NET.

PDF Rendering

FIXED

• Alternative text of accessible items is read multiple times by Acrobat Reader's 'Read out Loud' functionality.

HTML5 Report Viewer

FIXED

• Export notification does not clear when exporting is manually handled.
• A 404 request to `/sass/fonts/kendo-font-icons.ttf` is sent when font icons are used.
• Print dialog does not open when the browser is set to always download PDFs.

Product Dependencies