sabre/vobject 3.4.4 release

We just released sabre/vobject 3.4.4.

This version contains a small bugfix related to the iTip broker.

Upgrade sabre/vobject by running:

composer update sabre/vobject

If this didn't upgrade you to 3.4.4, make sure that your composer.json file has a line that looks like this:

"sabre/vobject" : "~3.4"

Full changelog of this release can be found on Github.