Issues

• Server: reduce memory per monitored item

  enhancementperformanceserver
  OPCFoundation/UA-.NETStandard#5021 · Filter by author romanett opened on Nov 6, 2026

• Server: monitored item and session creation performance

  enhancementperformanceserver
  OPCFoundation/UA-.NETStandard#5020 · Filter by author romanett opened on Nov 6, 2026

• Client with Workstation GC cannot keep up with high event-notification load (gen2 grows to GB, events lost)

  clientperformance
  OPCFoundation/UA-.NETStandard#5003 · Filter by author romanett opened on Nov 5, 2026
  2

• Implement complete OPC 10000-21 Device Onboarding workflows

  enhancement
  OPCFoundation/UA-.NETStandard#4973 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Add standalone OPC 30081 PA-DIM device, signal and analyser runtime support

  enhancement
  OPCFoundation/UA-.NETStandard#4972 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Complete OPC 40200 weighing runtime support

  enhancement
  OPCFoundation/UA-.NETStandard#4969 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Complete LADS Basics running lifecycle and stored-data support

  enhancement
  OPCFoundation/UA-.NETStandard#4968 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Complete reusable OPC 10000-200 Industrial Automation support

  enhancement
  OPCFoundation/UA-.NETStandard#4967 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Add opt-in AMB health and maintenance history through Part 11 providers

  enhancement
  OPCFoundation/UA-.NETStandard#4966 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Complete OPC 34100 Energy Consumption Management runtime support

  enhancement
  OPCFoundation/UA-.NETStandard#4965 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Complete standalone OPC 30050 PackML runtime, typed client and sample support

  enhancement
  OPCFoundation/UA-.NETStandard#4964 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Add provider-backed AutoID runtime parameters and Data Access scan control

  enhancement
  OPCFoundation/UA-.NETStandard#4963 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• Revisit reverted source generator fix for LADS

  needs investigation
  OPCFoundation/UA-.NETStandard#4962 · Filter by author marcschier opened on Nov 2, 2026 · 2.1
  

• NodeManager redesign: remaining API, performance and operational work after #4921

  enhancement
  OPCFoundation/UA-.NETStandard#4931 · Filter by author marcschier opened on Oct 28, 2026
  1

• Server: per-channel in-flight request limit with receive backpressure

  enhancement
  OPCFoundation/UA-.NETStandard#4914 · Filter by author romanett opened on Oct 27, 2026

• Complete executable WoT CTT conformance coverage

  complianceenhancement
  OPCFoundation/UA-.NETStandard#4886 · Filter by author marcschier opened on Oct 22, 2026
  

• Codec: span-based zero-copy binary encoder and decoder (A6)

  enhancementperformance
  OPCFoundation/UA-.NETStandard#4873 · Filter by author romanett opened on Oct 21, 2026 · 2.1
  

• Server and client: no BinaryEncoder/BinaryDecoder allocation per message

  enhancementperformance
  OPCFoundation/UA-.NETStandard#4871 · Filter by author romanett opened on Oct 21, 2026 · 2.1
  

• Replace all Headers with SPDX headers:

  compliance
  OPCFoundation/UA-.NETStandard#4865 · Filter by author opcfoundation-org opened on Oct 20, 2026

• Server: when can MonitoredItemNotification pooling pay off again?

  enhancementperformance
  OPCFoundation/UA-.NETStandard#4819 · Filter by author romanett opened on Oct 16, 2026 · 2.1
  

• Tracking: server performance (sampling across cores, lock-free value store, sampling engine, zero-copy codec)

  enhancementperformance
  OPCFoundation/UA-.NETStandard#4783 · Filter by author romanett opened on Oct 14, 2026 · 2.1
  

• Server and client: allocation-free request fast path (pooled messages, no default headers, no AsyncLocal scopes)

  enhancementperformance
  OPCFoundation/UA-.NETStandard#4779 · Filter by author romanett opened on Oct 14, 2026 · 2.1
  

• Move XmlDecoder/XmlEncoder configuration to immutable options records

  enhancement
  OPCFoundation/UA-.NETStandard#4761 · Filter by author marcschier opened on Oct 13, 2026 · 2.1
  

• Redesign server NodeManager API: partitioned dispatch, fail-closed permissions, tiered providers

  enhancement
  OPCFoundation/UA-.NETStandard#4735 · Filter by author romanett opened on Oct 11, 2026 · 2.1
  

• [BLOCKED] Intermittent test-run hang: NUnit parallel dispatcher never hands over from the Parallel to the NonParallel shift

  bugdependencies
  OPCFoundation/UA-.NETStandard#4717 · Filter by author romanett opened on Oct 9, 2026
  1