I filed to remove conditions July last year. Never heard anything for ages then the N400 window opened up for me so I went online and filled out the details. In November they scheduled me for a N400 Interview for the 3rd December. About 1wk before I was due to go they de-scheduled it, about 2 days later I then got another letter for an i751 interview on the 18th Dec. Went to the interview, got approved and today my case got the same message as you. Looks like you maybe not need an interview and they might be processing your 10yr GC.
Hi Toshi,
I received that same notice total of 3 times before the case got transferred to Nebraska on 9/18/18. Case approved on 12/18/18. It’s all standard to all I think.