Smartthings ET-WV523 EDGE Support?

I have a Samsung ConnectHome ET-WV523 and operated it over years with a lot of Figaro device type handlers. Since a few weeks these do no longer react on commands / rules or only after a long time (20mins). Apparently this is due to the Edge Support, but I haven’t found a way to update the Hub to Edge compatible Firmware version. Anyone can help me there?