In this release, the XmlHandler received a lot of love, starting with extended test coverage which uncovered a couple of now-fixed bugs. This paves the way for enriching XPath handling: XPath functions can now be used in columns configurations to directly retrieve a string value.
A new event was added to modify the response sent by a reaction.
The handling of the TCA was refactored into a specific class, making the code cleaner, facilitating following the evolution of the TYPO3 Core and also making it possible for developers to perform full TCA manipulations if needed.
Finally, a bug related to the handling of deleted child record was fixed.
This will be the last feature release in the 8.x branch. Next will come support for TYPO3 14, and dropping support for TYPO3 12.