---
title: "Typemock Isolator 4.2 released"
url: "https://osherove.com/blog/2008/2/27/typemock-isolator-42-released.md"
canonical: "https://osherove.com/blog/2008/2/27/typemock-isolator-42-released.html"
published: "2008-02-27T05:14:24"
updated: "2008-02-27T05:14:24"
tags: ["Agile"]
author: "Roy Osherove"
description: "Just a short announcement to tell you that Typemock 4.2 was just released out of beta. Download it here . To make this short, you can find what's new and release notes here:…"
usage: "Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page)."
license: "https://creativecommons.org/licenses/by/4.0/"
---

# Typemock Isolator 4.2 released

By Roy Osherove February 27, 2008 In [Agile](https://osherove.com/blog/category/agile)

**Historical article** · Originally published February 27, 2008; technical details may be outdated.

Just a short announcement to tell you that Typemock 4.2 was just released out of beta. [Download it here](http://www.typemock.com/Downloads.php).
To make this short, you can find what's new and release notes here:
[http://www.typemock.com/Docs/UserGuide/index.php?topic=ReleaseNotes42.html](http://www.typemock.com/Docs/UserGuide/index.php?topic=ReleaseNotes42.html)

Some of the cool features added:

- Highlight mocked methods within the VS Debugger so you know why you're not stepping into them
- Ability to evaluate during debugging the value of mocked methods and objects without ruining the test state
- Ability to mock direct fields which are not value types (properties were already supported)
- Events declared on abstract classes can now be mocked
- Events declared in derived interfaces can now be mocked
- Extension method on MSCorlib classes can now be mocked inside a chained statement
- A generic API for creating mocks is now available in the Community edition
- The new release of DotTrace profiler (3.0) is now supported and can be linked to run with Typemock Isolator
- more..

Also, we're constantly delivering tutorial videos on [the new Typemock blog](http://blog.typemock.com/) about using typemock Isolator, like [this one about using custom method decorators](http://blog.typemock.com/2008/02/video-typemock-basics-2-decorators.html) to extend your unit tests very easily in 5 minutes.

Your comments are appreciated!

## More in Agile

[All posts in Agile](https://osherove.com/blog/category/agile)

- Mar 9, 2008

    ### [Testing ASP.NET MVC Controllers with Typemock Isolator](https://osherove.com/blog/2008/3/9/testing-aspnet-mvc-controllers-with-typemock-isolator.html)

- Mar 1, 2008

    ### [What is a good example of unit test over specification?](https://osherove.com/blog/2008/3/1/what-is-a-good-example-of-unit-test-over-specification.html)

- Feb 25, 2008

    ### [An Agile phone Number](https://osherove.com/blog/2008/2/25/an-agile-phone-number.html)

- Feb 24, 2008

    ### [Project White and a cool debugging tip](https://osherove.com/blog/2008/2/24/project-white-and-a-cool-debugging-tip.html)


---

## About the author

**Roy Osherove**: Senior Solutions Architect at AWS working on AI for production and AI-driven development; author of The Art of Unit Testing and Elastic Leadership, with about 20 years of consulting and training on unit testing, TDD, team leadership and continuous delivery.

### Sites

- [RobotPaper](https://robotpaper.ai/): This blog: AI patterns and anti-patterns, AI and coding agents, and engineering leadership.
- [osherove.com](https://osherove.com): Roy's personal site. Author of The Art of Unit Testing and Elastic Leadership; consulting and training on unit testing, TDD, team leadership and continuous delivery, plus about 20 years of blog posts.
- [The Art of Unit Testing](https://www.artofunittesting.com): The Art of Unit Testing, 3rd Edition (Manning): readable, maintainable, trustworthy unit tests, plus TDD workshops in C#, JavaScript, Java and Kotlin.
- [5whys.com](https://www.5whys.com): Roy's writing on software team leadership: self-organizing teams, surviving chaos, learning mode and the Elastic Leadership model.
- [Pipeline Driven](https://pipelinedriven.org): Continuous delivery and DevOps practices: build patterns, pipeline-friendly testing, DevOps metrics and enterprise DevOps.
- [Elastic Leadership](https://www.elasticleadership.com): Elastic Leadership, Roy's framework for software team leaders (survival, learning and self-organizing modes).

### Social

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- LinkedIn: https://www.linkedin.com/in/osherove/

### Contact

- Contact form: https://forms.gle/jQSx5KoXvrVA1JCK7

### License

Licensed under CC BY 4.0 — reuse, quote and adapt with attribution (Roy Osherove, link to the original page). License: https://creativecommons.org/licenses/by/4.0/