[Flow] how to upgrade from flow 2.1 to 2.2 / 2.3

[Robin Lehrmann]

Hi,

Am 18.02.2015 um 10:59 schrieb Mira:
> But I don't know how to upgrade my existing and working installation of flow.
You should modify the version of flow in your composer.json and in 
composer.json of your packages.

Cheers,

Robin