10.18.8

MTS

July 04, 2025

Mendix Studio Pro is our low-code IDE for professional developers. It's a powerful visual model-driven development environment to build apps on the Mendix Platform. With Studio Pro you can easily create, change, integrate, test and deploy your applications, all in one place. Moreover, you can manage branch lines and security as well as extend your app with custom code using the built-in editors. Click 'Download Studio Pro' to get the installer for free (Windows OS required*). Learn more about the installation and the Studio Pro capabilities in our documentation. Not a professional developer? Learn How Mendix supports different developer profiles .Before installing, please read the Release Notes to learn about improvements, bug fixes, backwards compatibility, breaking changes and known issues. *If you are using a Mac, check out these instructions first.

Release Notes - **Release date: July 4, 2025** ### Improvements - We updated the bundled Node.js from v20 to v22. - We defined a list of associations: `System.WorkflowActivityRecord_Actor`, `System.WorkflowActivityRecord_TaskAssignedUsers`, and `System.WorkflowActivityRecord_TaskTargetedUsers`. Non-persistable objects referencing the current user through any of these associations will no longer be prevented from being garbage collected. ### Fixes - We fixed an issue where the size of the offline database was not reduced enough after a sign-out operation. (Ticket 247029) - We fixed a caching issue for React applications that had precaching enabled. (Ticket 250116) - We fixed an issue where enumeration values with the name *Core* caused compilation errors. (Ticket 250532) - We fixed an issue where an [association source](https://docs.mendix.com/refguide10/association-source/) in a data grid or template grid stopped displaying data after previously shown data was cleared due to an unavailable context object. (Ticket 250338, 250479) - We fixed an issue for **Import Mappings** and **Export Mappings** that caused checkboxes in the **Select schema elements** tree structure to be set incorrectly. (Tickets 251136, 250682, 227036, 250266) - We fixed an issue where an attempt to retrieve more than 500 external objects by ID at once failed. For example, when retrieving many external objects by association. (Ticket 251911) - We have fixed the **Show** button in selector dialogs not working when selecting an entity. - We fixed an issue in the React client where local reruns hung after making changes to a recursive nanoflow. - We fixed an issue with using JavaScript actions in a protected module when using the React client. ### Known Issues * Importing a module containing workflows makes all running workflow instances incompatible. (Ticket 234084) * Fixed in [10.21.0](https://docs.mendix.com/releasenotes/studio-pro/10.21/#fix-workflow-instances).