Yes. His official release date was supposed to be Tuesday.
Fri, Dec 7, 2018 –– Papadopoulos tweets he’s glad to be released from prison today –– https://twitter.com/GeorgePapa19/status/1071174456326926336
Tue, Dec 11 –– ~~Papadopoulos ends 2-week prison sentence; to be released from jail~~ (released 12/7) –– https://www.npr.org/2018/12/06/673845402/the-mueller-russia-investigation-a-full-docket-of-developments-set-for-friday