| Version | Release Year | Notable Changes | |---------|--------------|----------------| | v1 | 1998 | Initial ControlLogix support | | v6 | 2001 | Structured Text added | | v10 | 2003 | Function Block Diagram | | v13 | 2005 | Produced/Consumed tags | | v16 | 2007 | Safety (GuardLogix) support | | v19 | 2009 | Native EtherNet/IP device-level ring | | v20 | 2012 | Final RSLogix 5000 branding | | v21+ | 2014–present | Studio 5000 Logix Designer |