Versions 21 and above are superior for documentation. Starting with V21, controllers can store tag and rung comments directly in their memory, meaning you can perform a full upload and get all descriptions even without the original offline project file. Version Compatibility Rules
You cannot download v32 code into a PLC running v20 firmware. Upgrading the software usually means a mandatory (and sometimes risky) firmware flash of the hardware. Multi-Version Support: rslogix 5000 version better
To choose the right version for your task, consider these technical requirements: RSLogix/Studio 5000: Windows 11 Compatibility Versions 21 and above are superior for documentation