
CODESYS Release & Teaser Notes
OPC DA Server SL
18. Februar 2026
Aktuellste Version: 3.5.21.50
This version contains mainly bug fixes and some improvements in various product areas.
OPC UA Client API
19. Januar 2026
Aktuellste Version: 1.3.0.0
This version adds support for Timestamps on values from the server.
IIoT Libraries SL
16. Dezember 2025
Aktuellste Version: 1.13.0.0
This version
- adds support for binary HTTPS (application/octet-stream) and for HTTPS and Mail with OAuth2 Grant_Type = Device_code
- provides an example for using Azure Event Grid with the MQTT Client library
- provides maintenance of Azure IoT Hub, MQTT Client, Web Client, Mail Service
- supports library inspection and license manager
- is forward compatible with upcoming CAA-free BASLIB 5.0 (and also still with CAA-based BASLIB 4.0.1)
DNP3 SL
02. Dezember 2025
Aktuellste Version: 2.0.0.0
Support for additional data types and events is added to complete support of DNP3 Level 1 for the outstation library.
Additionally support for implementing a DNP3 master will be added.
Communication
28. Oktober 2025
Aktuellste Version: 4.7.0.0
Support for exporting the OPC UA server contents as nodeset xml files for offline engineering of OPC UA clients.
OPC UA PubSub SL
28. Oktober 2025
Aktuellste Version: 1.3.0.0
This version introduces message security for Pub/Sub for runtimes V3.5 SP21 or later (with runtimes < V3.5 SP22, it must use the same certificate using in other OPC UA functions). Additionally, the OPC UA Pub/Sub license is included in the "software metrics" dialog.