I'm trying to update an old app which uses an older version of Vuforia which was still supporting Framemarkers. Is it still possible to use Framemarkers with the latest version of Vuforia? I know that they are deprecated and not supported anymore but does that mean that their not usable at all anymore? We've been using framemarkers all over the place and we can't simply replace them all with vumarks or something else...
Also the version i'm using is 4.2.3, how does one migrate to the latest version of Vuforia? The documentation isn't really clear about migrating to 6 from 4.