Sometimes when you log into the Launcher, you will see an exclamation mark highlighting an update is available next to a plugin/content in your Vault. Currently, however, you can’t simply update items this way - instead you have to delete the item entirely, and then download it again; in order to get the most recent version…
It would be a lot more useful to developers if an “update” option was added to each item’s pull-down menu, so a new version can be added to the download queue to overrite the existing one. In case there is a problem with a current build, it would also be helpful if there was a version list available on a content page, allowing users to rollback.