These polybag Lego Millennium Falcon kits were a gift in the Lego magzine.
911607 (released in 2018) is of the Original Trilogy Millennium Falcon.
911949 was released in 2019 to coincide with the Solo movie at the cinema.
I bought both off of ebay for around £6 each. I’m not sure if I’ll build them, but they do close a couple of holes in my Lego Millennium Falcon collection.