In January 2021, Lego released a new plate-based road system for the City theme that differed from its predecessor, which used baseplates whose height equaled one-half of plate.[6] However, this system was criticized by some members of the Lego community due to its alleged incompatibility with the former baseplates, which had been gradually reduced in usage and limited to sets such as Lego Modular Buildings, and are less cost-effective.[7]