Since the endpoint /rest/bindings no longer exists in openHAB 4, the query changed to the endpoint /rest/addons.
Since the endpoint /rest/addons under openHAB 3 only shows the marketplace and manually install addons, the endpoint /rest/bindings is additionally queried when using openHAB 3.
openHUB 4 compatibility established.
Since the endpoint /rest/bindings no longer exists in openHAB 4, the query changed to the endpoint /rest/addons.
Since the endpoint /rest/addons under openHAB 3 only shows the marketplace and manually install addons, the endpoint /rest/bindings is additionally queried when using openHAB 3.
Please be kind that is my first pullrequest :)