OPC UA 1.03 vs 1.05: Certification Ends 2026, Migration Guide
OPC Foundation ends OPC UA 1.03 certification at end of 2026. What 1.04/1.05 changed (ECC, JSON, roles, GDS) and how to migrate your products.
OPC UA FX v1.00.04 vs v1.00.03: What Changed in Part 81 and Part 84
UAFX v1.00.04 updates Part 81 ConnectionManager and Part 84 conformance units. What changed, and which version your stack really implements.
AAS Units of Measurement 3.0: The unitId Change That Breaks ECLASS Wiring
IDTA-01003-b v3.0 redirects DataSpecificationIec61360 unitId from external dictionaries to a ConceptDescription. What breaks and how to migrate.
Ethernet-APL vs Ethernet-SPE: Power Classes, PoDL, and What IEC TS 63444 Edition 2 Changed
APL and SPE are not the same thing. IEC TS 63444 Edition 2 (June 2026) adds a new APL power class and folds in Ethernet-SPE. What changed and why it matters.
ISO 23247-6 Digital Twin Composition: Integrated vs Unified vs Federated
ISO 23247-6 published July 2026 names three ways to compose digital twins: integrated, unified, federated. What each means and when to pick it.