Telerik Report Server Lanzamientos

TelerikHerramientas de informes.NET
Versión 2026 Q2 (8 jul 2026)

Descubre las novedades en cada versión, con detalles de funciones, mejoras y problemas resueltos.

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Telerik Report Server 2026 Q2 (12.1.26.707)8 jul 2026
Funciones
  • What's Improved:
    • Notification pop-ups in the Web Report Designer can now be closed manually.
Correcciones
  • Configuration:
    • Fixed issue where a vulnerable SQLite version is referenced by the .NET implementation.
  • Desktop Designer:
    • Fixed issue where a NullReferenceException is thrown when previewing a report book with externally styled child reports.
  • PDF Rendering:
    • Fixed issue where alternative text of accessible items is read multiple times by Acrobat Reader's 'Read out Loud' functionality.
  • Report Server:
    • Fixed issue where Active Directory users are migrated with an incorrect 'Federation' account type.
  • Preview:
    • Fixed issue where print dialog does not open when the browser is set to always download PDFs.
Telerik Report Server 2026 Q2 (12.1.26.615)16 jun 2026
Correcciones
  • Report Server:
    • Fixed issue where the "Allow Reading Nested Reports" permission cannot be applied to the Guest user.
Telerik Report Server 2026 Q2 (12.1.26.520)20 may 2026
Funciones
  • Entity Framework Core Data Source component:
    • Developers can now bind reports directly to Entity Framework Core DbContext models using a dedicated data source component. The new EF Core Data Source is available in the Standalone Report Designer for .NET and the Web Report Designer, with support for design-time data preview, Shared Data Sources, and parameterized queries.
  • What's Improved:
    • The Windows distribution of Report Server for .NET is now bundled with Standalone Report Designer for .NET.
    • The Reporting engine now loads available rendering extensions on demand for faster application startup.
    • The Reporting engine now supports Firebird .NET Client Data Provider out-of-the-box without manual configuration.
    • The HTML5 Report Viewer now uses CSP-compliant templates instead of inline templates.
Correcciones
  • Web Designer:
    • Fixed issue where an HtmlTextBox containing two paragraph (P) elements is not rendered correctly.
  • Processing:
    • Fixed issue where incorrect headers are applied when encoding a UPS MaxiCode barcode.
    • Fixed issue where the RAG optimization of AI-Powered Insights is not applied when the AI model returns a formatted boolean response.
    • Fixed issue where a race condition in the cache locking mechanism may break the exclusive locking on Linux/macOS.
    • Fixed issue where NavigateToReport actions do not work in some report directory configurations.
  • HTML Rendering:
    • Fixed issue where font substitution does not take effect and the original font is used instead.
  • Server REST API:
    • Fixed issue where a 'Provided document Id has expired' error occurs intermittently for report image requests behind a load balancer.
Telerik Report Server 2026 Q1 (12.0.26.424)24 abr 2026
Funciones
  • MaxiCode (ISO/IEC 16023:2000) barcode encoding and rendering support:
    • MaxiCode (ISO/IEC 16023:2000) is now supported as a 2D barcode type, enabling encoding and rendering of UPS-compatible package labels and other logistics scenarios. The implementation supports all standard MaxiCode modes and is available across all rendering formats.
  • What's Improved:
    • The Reporting engine configuration now includes a "verbose" tracing option for investigation and troubleshooting scenarios.
Correcciones
  • Rendering:
    • Ordered list content in HtmlTextBox may be cut mid‑line across page boundaries.
  • HTML Rendering:
    • HtmlTextBox does not apply background colors defined in its content.
    • Shapes and empty text boxes are rendered without ARIA roles when accessibility is enabled.
  • PDF Rendering:
    • Nested tables inside subreports cause accessibility validation errors.
    • Graph alternative text is read repeatedly by screen readers in accessible files.
    • Page Footer content may not be read by screen readers when a report includes a watermark.
    • Report item alternative text is read multiple times or out of order by screen readers.
    • The reading order of tables is incorrect in accessible reports.
    • Date and numeric values are not exposed with the correct accessibility semantics.
  • Preview:
    • Parameter area ARIA label includes invisible parameters when accessibility is enabled.
Telerik Report Server 2026 Q1 (12.0.26.402)2 abr 2026
Funciones
  • Explicit control over Table of Contents levels for report items
    • Report authors can now explicitly specify the level at which sections, groups, and items appear in the Table of Contents, instead of relying solely on the report hierarchy. This provides greater control over TOC structure and enables consistent, meaningful outlines across reports and report books.
  • Secure connectivity between Standalone Report Designer for .NET and Report Server for .NET
    • The Standalone Report Designer for .NET can now securely connect to Report Server for .NET using token‑based authentication. This enables report authors to open, edit, and publish reports directly to the server.
  • User permissions now allow more granular control over report access
    • Enhanced the report access security by introducing a permission rule, “Allow Reading Nested Reports,” which controls whether users can read reports embedded as sub-reports or included in a Report Book.
  • What's Improved
    • ObjectDataSource now supports async methods returning Task and ValueTask.
    • The ReportProcessor class now exposes a method to list available rendering extensions.
  • What's Changed
    • The permissions for reading reports are now applied to reports, embedded as sub-reports or included in a Report Book.
Correcciones
  • Web Designer
    • GetDesignerResource endpoint fails for requests with different letter casing.
  • Rendering
    • "Missing license" message is not displayed correctly in exported CSV and Excel files.
  • PDF Rendering
    • SVG polylines with dashed or thick strokes are rendered incorrectly in PDF export using GDI graphics engine.
  • Report Server .NET
    • Disabling the last enabled user is allowed.
    • The SQL Data Source wizard fails to execute queries with parameters.
  • Preview
    • Localization does not work for the Angular and React Report Viewer wrappers.
Telerik Report Server 2026 Q1 (12.0.26.304)5 mar 2026
Funciones
  • Improved: Now navigates back to the Security tab when the "BACK TO CONFIGURATION PAGE" button in "Configure Encryption" view is clicked.
Correcciones
  • Processing
    • Fixed Unix epoch DateTime format is not resolved correctly.
    • Fixed String parameters containing hyphenated numeric values are resolved as DateTime.
    • Fixed 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.
    • Fixed 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.
Telerik Report Server 2026 Q1 (12.0.26.211)Versión principal11 feb 2026
Funciones
  • HtmlTextBox now supports inline images through the "img" tag:
    • The HtmlTextBox report item now allows embedding images directly inside HTML-formatted content using the "img" tag, including support for common attributes and basic styling. This enables seamless inline image rendering across all supported designers and output formats.
  • Paged report layout now supports repeatable table group headers/footers:
    • Table, Crosstab, and List items now include a PrintOnEveryPage property that allows static group headers/footers to repeat on every page the group spans. This improves readability when large groups extend across multiple pages.
  • What's Improved:
    • PDF417 barcodes now support a configurable module width‑to‑height ratio.
    • Client Access License details are now displayed in the user interface.
  • What's Changed:
    • WebService and Json data sources in .NET now comply with RFC 8259 and RFC 9535 (for JSON path), which may lead to differences in behavior.
Correcciones
  • Web Designer:
    • Fixed issue where monochromatic palette lightness controls do not adjust values in 0.1 increments.
  • Processing:
    • Fixed issue where Code 128 barcodes always use Code 128A even when control characters request Code 128B.
  • Rendering:
    • Fixed issue where setting LabelAngle causes the last graph label to disappear when using Skia graphics engine.
  • PDF Rendering:
    • Fixed issue where accessibility readers announce ordered list text before the numbering in HTMLTextBox.
  • Report Server:
    • Fixed issue where the "Activity" and "Created By" string resources used in the Scheduled Tasks and Data Alerts pages are missing from the localization files.
Telerik Report Server 2025 Q4 (11.3.26.121)21 ene 2026
Funciones
  • What's Improved:
    • Enhanced Color Palette Editor consistency across Color, Gradient, and Mono modes.
Correcciones
  • Object Data Source:
    • Fixed issue where Data Explorer fails to load schema for data sources with multiple parameters.
  • Web Designer:
    • Fixed issue where Chart color changes are not reflected at design time.
    • Fixed issue where "Snap to grid lines" option is enabled when the feature is not supported.
  • Report Server:
    • Fixed System.IO.FileNotFoundException: Could not load file or assembly 'System.Text.Json' in logs.
  • Report Server .NET:
    • Fixed issue where server configuration on Linux fails.
    • Fixed issue where storage cannot be changed after upgrading using separate installer.
  • Preview:
    • Fixed issue where report actions are not keyboard-accessible when 'enableAccessibility' is 'true'.