In MATLAB® R2020b, MathWorks® and Speedgoat introduced a major update for Simulink® Real-Time™, featuring a new 64-bit POSIX-compliant real-time operating system and improved workflow.
In case your target machine was previously configured for MATLAB R2020a or earlier, a one-time software migration is necessary to make it compatible with MATLAB R2020b and later. Learn how to update your real-time target machine to benefit from the features introduced in MATLAB R2020b.
Target Software Migration Tutorial