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Ventity 5.2 has just been released. You can download a copy with a 60-day evaluation license, or update your existing copy.
5.2 is primarily a performance upgrade, with parallel execution of sensitivity runs and improved savelists for managing sensitivity output. There are also some nice usability improvements, like duplication of Actions, as well as a number of bug fixes.

See the Release Notes for details.
If you missed 5.1, there are more cool new features like Model Maps:

If you’re new to Ventity:
The Help system contains a lot of good “getting started” material, including a series of videos, which are also on Vimeo, starting with
https://vimeo.com/134983029
Also look for our workshop at ISDC 2025.
The Ventity support forum is up and running at
https://www.ventanasystems.co.uk/forum/viewforum.php?f=48
Ventity licensing is now perpetual, and lapsed licenses through 4.9 will continue to work with this version. If you have Vensim Pro or DSS with current maintenance, you already have a Ventity license. If you don’t have your key, email us at info@ventity.biz for a copy.
Welcome MIT System Dynamics Alumni
The MIT Alumni System Dynamics Group is a vibrant community committed to advancing the field of System Dynamics—a discipline pioneered at MIT by Jay W. Forrester—through interdisciplinary collaboration, experiential learning, and real-world application. The group brings together alumni, students, affiliates, and professionals to tackle complex challenges across various sectors, including healthcare, sustainability, technology, and policy.
Through events like simulations, workshops, and networking sessions, members engage in action learning to deepen their understanding of dynamic systems and their impact. The group’s mission emphasizes amplifying knowledge synergies, increasing awareness of systems thinking, and fostering inclusive opportunities for innovation and problem-solving within the global MIT ecosystem.
All are welcome – including MIT alumni, students, faculty, the MIT community, friends of MIT, and anyone who wishes to join, learn, and meet others.

The MIT Alumni SD Group’s next event, June 25th virtually, will apply the System Dynamics lens to tariff turbulence.
Tariffs are part of a control system that regulates the flow of goods across borders. While designed to protect industries or influence trade balances, these policies often create ripple effects that reshape supply chains and macroeconomic performance.
System Dynamics provides a deeper understanding of how tariff systems work, and what they actually do, by examining the feedback mechanisms that drive system behavior over time. These systems are not just mechanical – they’re shaped by human decisions, shifting incentives, delayed reactions and evolving policy goals.
Ventana’s own Tom Fiddaman will share some models System Dynamics history, and we’ll experiment with an online simulation of tariff impacts.
