Released: Mar 13, 2026

Updates in 2026 Q1 Hotfix (2026.1.313.505)

Fixes

• Fixed an issue where integrating JustMock with Telerik products using Telerik.Licensing could cause a compiler error (CS0433).
• Updated the JustMock Console to remove dependencies on deprecated .NET components.
• Resolved regression issue that prevented successful integration with third‑party profilers.

Released: Feb 11, 2026

Updates in 2026 Q1

Features

• Added documentation articles for GitHub Actions and GitLab CI/CD workflows.
• Improved documentation structure, overall guidance, and search trough newly added AI-powered engine.
• Updated some third-party components to their latest stable versions.
• Enhanced product security through multiple code-level fixes.

Released: Dec 4, 2025

Updates in 2025 Q4 Hotfix (2025.4.1204.489)

Fixes

• Addressed a security-related warning previously displayed to macOS users ("Untrusted publisher").

Released: Nov 12, 2025

Updates in 2025 Q4

Features

• Added support for Microsoft .NET 10.
• Added support for MSTest v4.
• Breaking Change: To ensure a smooth and reliable testing experience with MSTest v4, the [assembly: DoNotParallelize] attribute must be added to each test assembly. This new requirement aims to reduce the risk of unexpected failures during test execution.
• Known Issue: Changes in .NET 10 have caused issues with mocking the 'GetType' method from the 'Object' class, resulting in a StackOverflowException that crashes the test...

Released: Aug 13, 2025

Updates in 2025 Q3

Features

• Added preliminary support for .NET 10 Preview 6.
• The JustMock.Console tool now includes a command-line option to set the working directory for the test-runner process.
• Property set expression builder now accepts null values and lambdas expressions.
• Improved the Scenarios and Integrations, Basic Mocking, and Advanced Usage sections of the documentation.

Fixes

• Fixed issue where the Azure DevOps "Telerik JustMock Tests v.2" is showing a warning about end-of-life Node version.

Released: May 23, 2025

Updates in 2025 Q2

Features

• Trial and commercial users now use the same product package. The trial and commercial product versions merged into a single unified distribution package. The product access now depends on a license key file. This eliminates the need for separate trial downloads.
• Telerik JustMock now requires Ubuntu 22.04, the previous LTS version (20.04) has been dropped as it reached End of Standard Support.
• Breaking Change: Starting with 2025 Q2, all Telerik JustMock users will need to apply a valid...

Released: Feb 12, 2025

Updates in 2025 Q1

Features

• The Getting Started section in the product documentation has been reorganized for improved clarity and ease of use.
• Added a quick guide to the product documentation on how to set up JetBrains Rider for running tests using the advanced features of JustMock.
• Built-in examples have been reviewed, updated, and aligned with the latest product functionality to ensure accuracy and relevance.

Fixes

• JustMock is no longer causing System.InvalidProgramException in tests that utilize System.Text...

Released: Nov 13, 2024

Updates in 2024 Q4

Features

• Added .NET 9 support.
• Added the capability to utilize ReturnsAsync when automocking containers.
• Updated mocking extension for EntityFramework, along with a new extension specifically designed for EntityFrameworkCore.

Fixes

• Addressed potential performance degradation issue associated with projects that involve complex dependencies.

Released: Aug 7, 2024

Updates in 2024 Q3

Features

• Added support for Microsoft .NET 9 Preview 6.
• Added support for transparent integration with dotCover in installation free scenario on all supported platforms.

Fixes

• Raising async event with Mock.Rise causes method signature error.
• Removed vulnerable transitive dependency to System.Security.Permissions 5.0.0.

Released: May 15, 2024

Updates in 2024 Q2

Features

• Added support for Microsoft .NET Standard 2.1.
• Added .NET MAUI support.
• Breaking Changes - .NET Core projects that use direct reference to JustMock assembly need to be updated to \Libraries\netstandard2.1.

Fixes

• Using declaration causes InvalidProgramException.