Put requests with UDM REST API fail after update from 5.0-4 to 5.0-6

after updating from 5.0-4 to 5.0-6 our curl put requests via UDM REST API fail. We receive a http 400 error with the following message:“HTTP 400: Bad Request (Invalid “If-Match” syntax.)” It seems that something with the If-Match (which contains the etag) is wrong, but we haven’t change anything there and it worked fine before.
Greetings Frank

I have solved the problem meanwhile, the etag has to be within quotation marks now, which was not mandatory in earlier versions, because it did work for years without them. But it still doesn’ t work, now I’m facing a problem with the etag-identifier itself, I will do a little bit more research on that topic.