# Core Engine Release 4.40

August 2025

We upgraded! What's new? Learn more about new features, technical changes and solved bugs in 4App Core Engine.

Note on upgrading: If you skip a version when upgrading, check all release and patch notes in between for important information. They apply cumulative.

Note on individualization: If your 4ALLPORTAL is highly customized or if you installed individual apps, please contact your implementation partner before upgrading. We recommend checking your custom contents, especially layouts and object renderers, carefully after an upgrade.

# Additional Improvements

We have improved the execution time for specific database queries by analyzing and simplifying certain conditions to enhance performance.

# Solved Bugs

Fix the display of objects in the subpanel, depending on the selected dimension
Fix not displaying the column titles the value column of the key-value renderer
Fix the rollback of the search results view after using "Go Back"

# Patch releases

# Version 4.40.1

Fix loading custom style files

# Version 4.40.2

Fix not being able to create a new field in the module configuration overlay

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