Release History

Progress® Telerik® Report Server 2026 Q1 (12.0.26.304)

March 5, 2026

What's Improved

NEW

• Navigate back to Security tab when the "BACK TO CONFIGURATION PAGE" button in "Configure Encryption" view is clicked.

Processing

FIXED

• Unix epoch DateTime format is not resolved correctly.
• String parameters containing hyphenated numeric values are resolved as DateTime.
• DateTime report parameter using only date part is calculated as one day earlier when the service uses a positive timezone offset.

Rendering

FIXED

• Stretched ellipse shapes do not render correctly when using the Skia graphics engine.

Excel Rendering

FIXED

• The CheckBox item's check mark images are not rendered correctly in Excel when using the Skia graphics engine.

Report Server

FIXED

• Data grids do not maintain their scroll position after editing an entry.
• TELERIK_LICENSE_PATH environment variable is not respected when validating the product license key.

Report Server .NET

FIXED

• Scheduled tasks fail when rendering reports that use WebServiceDataSource/JsonDataSource.

Preview

FIXED

• Error messages for parameter editors are rendered in incorrect color.