
CODESYS Release & Teaser Notes
OPC UA Client API
24 Agosto 2026
Versione più recente: 1.4.0.0
This version improves the handling of problems with subscriptions on the server side: access to subscription status codes; error code for rejected subscription.
DNP3
04 Agosto 2026
Versione più recente: 2.0.1.0
Fixed hard coded limit for communication channels
EtherCAT
30 Luglio 2026
Versione più recente: 4.12.0.0
This version contains bug fixes, improvements and the following new features:
- support for Beckhoff MX-System
- support for Balluff IO-Link gateways BNI XG1, XG3 and XG5
- improvements, when used together with CODESYS Redundancy
PROFINET
29 Luglio 2026
Versione più recente: 4.8.0.0
This version will contain bug fixes, improvements and the following new features:
- Topology Editor that displays graphically all involved devices and its connections.
- Dynamic Reconfiguration to support online change when modifying/adding devices.
- Support of GSDML specification V2.46
- Show newest installed device only
- Per default, no more duplicates / older versions of a device are shown.
- SysEthernetBurst
- Use new runtime interface (included in SP22) that sends and receives multiple Ethernet frames with one call.
- Noticeable performance improvement.
OPC DA Server SL
23 Luglio 2026
Versione più recente: 3.5.22.30
This version contains bug fixes in various product areas.
EtherNet/IP
25 Giugno 2026
Versione più recente: 4.9.1.0
Maintenance version.
CANopen Manager SL
23 Giugno 2026
Versione più recente: 4.4.0.0
Maintenance version.
CANopen Device SL
23 Giugno 2026
Versione più recente: 4.4.0.0
Maintenance version.
IO-Link SL
02 Giugno 2026
Versione più recente: 4.4.0.0
Maintenance version.
It will support the IO Device Description Scheme 1.1.5.
Communication
18 Maggio 2026
Versione più recente: 4.8.0.0
The data source online change can be licensed and activated using the new store product "Online Configuration Change"
Modbus
12 Maggio 2026
Versione più recente: 4.6.0.0
This version will contain bug fixes.
- Optional additional I/O channels that contain diagnosis information of each single Modbus channel.
- New FB ModbusTCPRequestServer that allows the application to control the server's answers to requests from the client.
NetX
29 Gennaio 2026
Versione più recente: 4.1.0.0
This version contains bug fixes.
IIoT Libraries SL
16 Dicembre 2025
Versione più recente: 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)
OPC UA PubSub SL
28 Ottobre 2025
Versione più recente: 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.
EDS Import
14 Ottobre 2025
Versione più recente: 4.3.0.0
This version contains bug fixes.
PROFIBUS
05 Maggio 2025
Versione più recente: 4.2.0.0
This version contains bug fixes.
EtherNet Adapter
28 Marzo 2023
Versione più recente: 4.2.0.0
This version adds language support for Turkish and Portuguese and contains a bugfix.
BACnet SL
06 Dicembre 2023
Versione più recente: 2.0.0.0
Support new functionality standardized in BACnet standard ASHRAE 135-2020 and protocol revision 25.