CODESYS Release & Teaser Notes
Virtual Safe Control SL
October 22, 2026
Latest version: 4.23.0.0
-Update to runtime SDK V3.5 SP22 Patch 4
-Update to Safe Control Core 4.3.0.0
-Support of ARM64 and x64 devices for the Virtual Safe Control
-new CODESYS Safe Control SL package, containing native SIL3 safety runtimes (split from Virtual Safe Control packge, now only containing containerized products)
-docker compose support for the Virtual Control
Safe Control Core
January 20, 2026
Latest version: 4.2.0.0
This update introduces FSoE Master support, improved diagnostics, and time provider redundancy functions.
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.
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