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SigningHub v10.0.3

September 2025

New Features

SigningHub Admin Interface Redesign

The SigningHub Admin interface has been completely remodelled to provide a more intuitive experience. The new interface introduces a modern design with clear layouts, intuitive navigation and enhanced usability, delivering a faster and more enjoyable user experience.

The new design embraces modern branding principles, where a single primary colour defines a brand. By integrating this primary colour throughout the interface, including all interactive elements, the SigningHub Admin user interface becomes an extension of a customer’s brand identity. With fewer colours, the user interface becomes more user-friendly, ensuring better contrast and readability for all users, including those with visual impairments. SigningHub has also enhanced sidebar customisation, enabling users to consistently display their secondary brand colour, providing a personalised touch that is always visible.

Migration to .NET Core

SigningHub has been migrated from the .NET Framework to .NET Core, ensuring improved performance, scalability, and cross-platform support. This shift modernises the application architecture and lays the foundation for enhanced compatibility across environments.

Enhanced Branding

The SigningHub Admin branding module has been simplified, allowing administrators to easily configure primary, sidebar, and error colours with a visual interface. This ensures that the organisation’s colour palette is applied consistently across the interface, helping to strengthen recognition and reinforce the brand identity. The new colour palette offers a significant improvement by focusing on brand consistency and streamlined user experience. SigningHub now allows administrators to create a UI that feels more aligned with their brand.

API-First Implementation

All core modules in SigningHub Admin are now fully powered by SigningHub APIs. This API-First architecture ensures consistent functionality across platforms, improves scalability, enhances integration flexibility, and provides administrators with a faster and more reliable experience.

WCAG Compliance 2.0 Level AA

Ascertia is committed to creating a more inclusive digital signature experience for all users. We've carefully redesigned the SigningHub Admin user interface to simplify the colour scheme and improve contrast, making it easier for users with visual impairments to read and navigate the platform.

This update not only enhances accessibility but also reduces distractions, allowing users to focus on the task at hand. By meeting the Web Content Accessibility Guidelines (WCAG) 2.0 Level AA, we're ensuring that SigningHub Admin is accessible to a wider range of users, including those with disabilities.

Containerisation and Orchestration of SigningHub (SHE-53938)

SigningHub now offers full support for containerisation for both new installations and upgrades on Linux environments using Docker. This containerised deployment streamlines setup and makes it easy to migrate from Windows IIS to Linux while continuing to use existing databases.

Custom Background and Slider Configuration (SHE-49081)

Administrators can now customise the SigningHub experience by configuring background images, slider images, and accompanying text for both the desktop web and native applications. These options are available at both the SigningHub Admin and Enterprise levels, ensuring consistent branding across all environments.

Improvements

Enable Swagger Documentation (SHE-53078)

SigningHub now provides an EnableSwaggerDocumentation parameter, configurable via the appsettings.Production.json file. When set to false (default) or omitted, Swagger documentation will not be rendered. To view the Swagger documentation, set this parameter to true.

Improved Handling for Concurrent User Contact Creation (SHE-54916)

SigningHub reliably handles scenarios where the same user is added as a recipient in parallel workflow requests.

Certificate Filter Field Values in API Documentation (SHE-55269)

The Add/Update Certificate Filter API documentation has been updated to reflect accurate field values required for successful requests.

Improved Dutch Translations (SHE-55514)

SigningHub now includes updated Dutch (nl-NL) translations to enhance clarity and accuracy across the application.

Guest and Deleted User Management (SHE-53989)

Administrators can now view ‘Guest' and ‘Deleted’ users in the Accounts section of SigningHub Admin. They can also update the name of a 'Guest’ user.

Security Improvements

Updated Third-Party Libraries

The following updates have been made to third-party libraries:

  • Common

    • iText updated from 7.7.1.15-SNAPSHOT to 9.1.0

    • ABCpdf updated from 12.5.0.8 to 13.3.5

    • Aspose updated from 24.11.0 to 25.7.0

  • Web

    • @angular/cli updated from 18.2.8 to 19.2.12

  • Admin

    • @angular/cli updated from 18.2.8 to 19.2.11

    • @angular-devkit/build-angular updated from 18.2.8 to 19.2.11

Admin Gateway Enhancements and Security Improvements (SHE-55808)

The SigningHub Admin gateway has been updated with several improvements to strengthen security, enhance reliability, and increase configurability:

  • Proxy Support – The SigningHub Admin gateway now supports proxy configuration. Administrators can enable or disable proxy usage, specify proxy address and credentials, and configure local address bypass through the appsettings.Production.json file.

  • Exception Handling – Unhandled exceptions are now logged, ensuring cleaner error reporting and easier troubleshooting.

  • Excluded Headers – Administrators can now configure certain response headers (e.g., Transfer-Encoding, Date, Server) to be stripped from API responses. This enables the SigningHub Admin gateway to apply its own headers consistently across environments.

  • URL Sanitisation – A new middleware prevents path traversal and injection attacks by blocking malicious URL patterns (e.g., ../, %2e%2e, null bytes, wildcards, shell injection symbols).

New ADSS Server Support

ADSS Server Support

SigningHub now supports ADSS Server 8.3.13.

Important System Changes

  • SigningHub 10.0.3 is supported on Windows 64-bit and on Linux 64-bit environments (Linux support is via Docker only).

  • The following features are not available in the Linux environment:

    • SSL client authentication

    • Local signing via Trust1Connector

    • Word document signing

  • Support for .ico files has been removed.

  • After upgrading to SigningHub v10.0.3, the 'Require SSL' setting in IIS must be disabled for existing Admin websites.

  • The /authenticate/saml API response has changed; the type field now returns string values (POST, REDIRECT) instead of numeric values (1, 2).

  • The /about API endpoint now requires a valid client credentials token for access. Integrations that previously accessed this endpoint without authentication must update their implementations to include token-based authentication.

  • As part of the upgrade to v10.0.3, all existing refresh tokens must be cleared from the database, as the system has transitioned from using OWIN-based access tokens to JWT tokens. To do this, execute the following SQL query: TRUNCATE TABLE RefreshToken;

  • For SigningHub v10.0.3, the Regular Release package becomes the actual installation directory instead of updating the existing v10.0.x/8.6.x installation folder. This behaviour differs from previous Regular Release versions and should be considered when planning upgrades.

  • Starting with SigningHub v10.0.3, all API requests must use strictly valid JSON payloads. Due to the upgrade to .NET 8, non-standard or loosely structured JSON formats that were previously accepted are no longer supported. This change enforces standards-compliant JSON, improving security, consistency, and overall API reliability.

  • When upgrading from any previous version to SigningHub 10.0.3, any preconfigured CSP (Content Security Policy) header settings will be reset for SigningHub Admin. These settings must be reconfigured after the upgrade.

Compatibility with Earlier Versions of SigningHub

SigningHub (iOS) & (Android) v10.0.3 are compatible with SigningHub 10.0.2 except for the breaking changes mentioned in the Important System Changes section.

For further details, contact us at sales@ascertia.com or visit www.ascertia.com.

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