sabre/xml 1.4.0 released
We just released sabre/xml 1.4.0. This release fixes a number of problems related to serializing value objects, and in particular array properties.
We also introduced a BC break. Value objects with properties that are set to null or empty arrays are now skipped, as we feel that this is a more sane default. It could influence your xml output though, so if you use value objects, keep a close eye on if this affects you.
Update sabre/xml by running:
composer update sabre/xml
If that didn't update your sabre/xml, make sure you are requiring
Full changelog can be found on Github