9.24.43

LTS

May 13, 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. 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: May 13, 2026** ### New Features - We added a new runtime setting `FileStorage.S3.DisableChunkedEncoding` to allow disabling chunked encoding for S3 storage. (Tickets 274327, 272789) - When Studio Pro is uninstalled, residual files created by Studio Pro are now also removed during the uninstall process. ### Improvements - We upgraded the BouncyCastle dependency to version 1.84. (Tickets 276629, 276631) #### Widget and Module Marketplace Metadata We changed how Studio Pro stores Marketplace identity data for widgets. This data is now stored in a single shared file, `widgets-appstore-metadata.json`, located in the root of your app project, instead of inside each individual widget's *.mpk* file. Additionally, some Marketplace modules could have an incorrect version string in the app model, these are now corrected automatically. When you open your app, all widget files are updated, the new `widgets-appstore-metadata.json` file is created, and any module version strings are corrected. These will appear as changes in your version control, commit them as part of your upgrade. ### Fixes - We fixed an issue where tasks scheduled from a microflow would execute before the microflow ends. Activities that are meant to be executed in a taskqueue should always be picked up and executed after the microflow has fully completed. (Ticket 222845) - We added Microsoft related MIME types. (Tickets 276471, 276598, 276604, 276958) ### Deprecations - From July 6, 2026, we will drop support for the following database versions that are no longer supported by the vendors: - PostgreSQL 13 - MariaDB 10.6