A new Demon-rated official level featuring the song "Explorers" by Hinkik. Originally intended for 2.2, it was postponed due to bugs.
RobTop (the developer) has been releasing frequent smaller "sub-updates" (e.g., 2.204 to 2.208) to address performance and add quality-of-life features while working toward 2.21. Notable recent additions that bridge the gap include: geometry dash 2.21 update features