
CODESYS Release & Teaser Notes
Virtual Safe Control SL
June 18, 2026
Latest version: 4.21.0.0
- Update to runtime SDK V3.5 SP22 Patch 1
- Support of EWF licensing containers
- XDP support of Ethercat and Profinet on x86 systems
- Execution of Linux-based SL runtimes with specific user rights, not generic root access
- Rework with various improvements of SL Deploy Tool
- Integration of performance and support report via plc shell command
Safety SIL2
June 02, 2026
Latest version: 3.5.22.10
New release of CODESYS SIL2, based on standard CODESYS V3.5 SP22 Patch 1. This is the first LTS release, providing security updates for 6 years — a key enabler for CRA compliance. Adopting this version establishes a solid foundation for meeting Cyber Resilience Act requirements.
Safe Control Core
January 20, 2026
Latest version:
Safety Support
November 17, 2025
Latest version: 4.1.0.0
New version enhances the SubNodeCom library to provide more detailed and precise diagnostic information.
Safety Extension
June 17, 2025
Latest version: 4.4.0.0
Bug fix version for a more robust online communication with CODESYS Safety Extension.
Safety for EtherCAT Safety Module SL
August 29, 2024
Latest version: 4.4.0.0
This version contains bug fixes and minor improvements.
Safety
September 14, 2020
Latest version: 4.1.6.1
Safety certificate update to cover the new versions of the safety norms IEC 62061:2021 and ISO 13849:2023