Prefer the latest Studio 5000 (Logix Designer) version that’s fully compatible with your controller firmware; upgrade only if device firmware, IEC features, and your OS/toolchain are supported.
When choosing the "better" version of RSLogix 5000, it is important to understand that the "best" version is usually dictated by your hardware firmware, as the software version must match the major revision of the controller rslogix 5000 version better
For Modern Hardware (ControlLogix 5580 / CompactLogix 5380): You should aim for v32 or higher Top Contenders for "Best" Version 1. Version 20.05: The "Old Reliable" Prefer the latest Studio 5000 (Logix Designer) version
The major versions of RSLogix 5000 are: