Version 3.1.0 (2020.12.21) supports macOS Catalina (10.15) and Big Sur (11.x) Note that on the new Macs with Apple M1 CPU chips, the first time Bricklayer is run it will ask to install Rosetta for compatibility.This provides a self-contained environment for constructing Bricklayer programs and viewing the results of their execution. The Bricklayer install software bundles an IDE, a set of graphics libraries, and web viewer.