9.24.39

LTS

September 29, 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: September 29, 2025** ### Fixes * We fixed an issue that could result in the error *Duplicate objects are not allowed* in the console log when synchronizing offline. Please note that the root cause of this issue is the use of background synchronization, which is [not recommended for offline apps](https://docs.mendix.com/refguide/synchronize/#background-sync). (Ticket 235130, 251202) * We fixed an issue where changing MxAdmin user's name in Studio Pro does not result in changing MxAdmin user's name in database. (Ticket 255505) * We fixed an issue where passing an empty enumeration value to a microflow executed in a task queue would cause the execution to fail. (Ticket 259170) * We fixed an issue where task queue tasks were not able to mark themselves as completed after execution.