Mendix Studio pro
10.18.13
Stable
January 08, 2026
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.
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.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: January 8, 2026**
### Improvements
- We introduced a new log node named `SystemTask` for logging system management actions.
- We improved the performance of runtime statistics collection.
- We improved the scheduling of cluster node management actions.
- We added batching to the `session keep-alive` and `last action execution update` maintenance tasks. The batch size can be changed using the `SessionKeepAliveUpdateBatchSize` and `LastActionExecutionUpdateBatchSize` runtime settings.
- We now remove web service user sessions if they are expired.
- We now cleanup expired sessions in batches instead of all at once.
### Fixes
- We fixed an issue where trying to delete a huge number (millions) of anonymous sessions during startup would cause out of memory errors. We now delete sessions and anonymous users in batches to avoid this problem. (Ticket 257047)
- We now avoid resetting failed login count during login when it is already zero. (Ticket 260858)
- We fixed the issue that invalid sessions without an associated user were never removed from the database.