The project has been updated to:

Spring Boot to 3.4.0 - see also Spring Boot 3. Release Notes

Spring Framework to 6.2.0 - see also Upgrading to Spring Framework 6.x

This update includes many further 3rd library updates, which are given in a separate release note. This release note is marked as a breaking change because it may require work to fix project code (blueprint customizations) to adjust to the following (or further) changes:

Also, some plugins or extensions might break and have to be updated (e.g. CoreMedia Salesforce Marketing Cloud extension).

In many cases this update will not be breaking at all.

(CMS-25319)