The 2021 release was a polish-and-stability update. By this time, NI was heavily pushing LabVIEW NXG and the “LabVIEW 20xx” line was moving into long-term support (LTS) mode. Nevertheless, important enhancements emerged:

Improved handling and parsing of .m scripts within the LabVIEW MathScript Node (frequently paired with control workflows), smoothing out syntax errors and vector calculations.

: The module extended LabVIEW's graphical dataflow paradigm to control systems. Engineers built simulation diagrams by placing functions like Integrator , Transfer Function , and State-Space on the block diagram. This visual approach allowed complex systems to be created, connected, and understood intuitively, making it easier to implement nonlinear elements alongside linear plants or controllers within a single, clear diagram.

He realized the story of the software wasn't about new icons or darker menus. The was the peak of the "Offline Simulation" era—perfect for analysis, perfect for desktop math. The 2021 Module was the matured "Hardware-in-the-Loop" era—designed for a world where simulation doesn't just stay on the screen, but flows directly onto the chip.

For the first time, non-commercial hobbyists, makers, and academic researchers could access the Control Design and Simulation module completely free of charge under the LabVIEW Community Edition license tier.

Full native support for Windows 10 (versions 1709 and 1803) and Windows 7 SP1. LabVIEW 2019 Control Design and Simulation Module

Additionally, a new allowed calling Python control libraries (e.g., control.matlab transfer functions) from within a simulation loop. This was a practical bridge for research teams prototyping in Python but deploying in LabVIEW RT.

Improved integration with NI Package Manager (NIPM) for cleaner deployment dependencies.

What are you deploying to? (e.g., Windows PC, CompactRIO, PXI?)