sabre/vobject 3.2.4 release

We just released sabre/vobject 3.2.4.

Conversion between vcard 3 and 4 has been improved, a workaround has been added to deal with Yahoo's broken vcard generation and the CLI tool works again on PHP 5.3.

Upgrade sabre/vobject by running:

composer update sabre/vobject

Full changelog can be found on Github