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Make implicit conversion operators explicit for NodeId/ExpandedNodeId

enhancementAPI or feature enhancementAPI or feature enhancement

Status: Open.

#3548 In OPCFoundation/UA-.NETStandard;

· marcschier opened on Feb 12, 2026

Follow up task: DataTypeNode and VariableNode Fuzztest failure

bugA bug was identified and should be fixed.A bug was identified and should be fixed.

Status: Open.

#3546 In OPCFoundation/UA-.NETStandard;

· marcschier opened on Feb 11, 2026

EncodeableFactory only loads the global root when types in Opc.Ua nuget are referenced.

bugA bug was identified and should be fixed.A bug was identified and should be fixed.

Status: Open.

#3544 In OPCFoundation/UA-.NETStandard;

· marcschier opened on Feb 11, 2026

OrderedListState should not instantiate OrderedObjectPlaceholder instances as children since such instance is only to be present in the OrderedListType

codegenModelCompiler and source generation relatedModelCompiler and source generation related

complianceAn issue was found which is not compliant with the OPC UA specification.An issue was found which is not compliant with the OPC UA specification.

Status: Open.

#3541 In OPCFoundation/UA-.NETStandard;

· mrsuciu opened on Feb 10, 2026

·  

1.4.371 service update

FastDataChangeCallback intermittently stops firing after session reconnect

help wanted

needs investigation

Status: Open.

#3540 In OPCFoundation/UA-.NETStandard;

· AndriiPrystai opened on Feb 10, 2026

Change implementation of built in types and code generation to generate efficient code leveraging it.

enhancementAPI or feature enhancementAPI or feature enhancement

Status: Open.

#3537 In OPCFoundation/UA-.NETStandard;

· marcschier opened on Feb 10, 2026

How to Revoke a Sub-CA using RevokeCertificate of CertificateGroup

GDS

help wanted

needs investigation

Status: Open.

#3536 In OPCFoundation/UA-.NETStandard;

· KircMax opened on Feb 10, 2026

<Performance Issue>: IsNullTypeId

performance

Status: Open.

#3533 In OPCFoundation/UA-.NETStandard;

· kimdiego2098 opened on Feb 9, 2026

[CTT] Base Information -> Base Info Semantic Change --> 001.js / Server needs to raise SemanticChangeEvent

Status: Open.

#3531 In OPCFoundation/UA-.NETStandard;

· romanett opened on Feb 9, 2026

[CTT] Investigate failing Tests

Status: Open.

#3527 In OPCFoundation/UA-.NETStandard;

· romanett opened on Feb 6, 2026

[Server] Support RSA Encrypted UserNameIdentityToken with RSAEncryptedSecret format

complianceAn issue was found which is not compliant with the OPC UA specification.An issue was found which is not compliant with the OPC UA specification.

enhancementAPI or feature enhancementAPI or feature enhancement

Status: Open.

#3524 In OPCFoundation/UA-.NETStandard;

· romanett opened on Feb 5, 2026

[Server] Shall lock out Client Application after five failed attempts to validate a user Token

complianceAn issue was found which is not compliant with the OPC UA specification.An issue was found which is not compliant with the OPC UA specification.

enhancementAPI or feature enhancementAPI or feature enhancement

Status: Open.

#3523 In OPCFoundation/UA-.NETStandard;

· romanett opened on Feb 5, 2026