One reason to use 20.12 over earlier V20 revisions (like 20.01) is . Rockwell quietly patched several vulnerabilities in 20.12, including:
Firmware revision represents the final, stable "end-of-life" build for the RSLogix 5000 branding (Version 20). All later major revisions (v21, v24, v31+) transition to Studio 5000 Logix Designer . rslogix 5000 firmware 20.12
If your plant is running , you are at a critical decision point: it is the last version that supports Windows 7 and the classic RSLogix 5000 interface, but it is no longer receiving security patches from Rockwell Automation. One reason to use 20
This is a critical point. Firmware 20.12 predates modern cybersecurity standards. including: Firmware revision represents the final