# API Changes in v2.8
> Reference: API changes of Opc.UaFx.Advanced in v2.8: 207 added, 25 removed, 47 changed, 2 obsoleted.
- Releases
- v2.8.0, v2.8.1, v2.8.1.1, v2.8.1.2, v2.8.1.3, v2.8.2, v2.8.2.1, v2.8.3, v2.8.3.1
- Compared with
- v2.7.5.1
- Package
- Opc.UaFx.Advanced
## Added
### Opc.UaFx
| Symbol | Signature |
|---|---|
| [Bit](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.bit/)35 members | `public struct Bit : IComparable, IConvertible, IComparable, IEquatable` |
| [IOpcDataFieldInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcdatafieldinfo/)9 members | `public interface IOpcDataFieldInfo` |
| [IOpcDataStore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcdatastore/)2 members | `public interface IOpcDataStore` |
| [IOpcDataTypeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcdatatypeinfo/)21 members | `public interface IOpcDataTypeInfo` |
| [IOpcNamespaceResolver.ResolveIndex](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnamespaceresolver/members#resolveindex) | `int ResolveIndex(string namespaceValue)` |
| [IOpcNamespaceResolver.ResolveValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnamespaceresolver/members#resolvevalue) | `string ResolveValue(int namespaceIndex)` |
| [IOpcNodeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnodeattribute/)1 member | `public interface IOpcNodeAttribute : IOpcNodeDescriptor` |
| [IOpcNodeDescriptor](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnodedescriptor/)1 member | `public interface IOpcNodeDescriptor` |
| [IOpcNodeValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcnodevalue/) | `public interface IOpcNodeValue : IOpcNodeAttribute, IOpcNodeDescriptor` |
| [IOpcReadOnlyNodeDataStore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopcreadonlynodedatastore/)6 members | `public interface IOpcReadOnlyNodeDataStore` |
| [IOpcType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopctype/)4 members | `public interface IOpcType` |
| [IOpcTypeProvider](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.iopctypeprovider/)6 members | `public interface IOpcTypeProvider` |
| [OpcAccessLevel.StatusWrite](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaccesslevel/#statuswrite) | `StatusWrite = 32` |
| [OpcAccessLevel.TimestampWrite](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcaccesslevel/#timestampwrite) | `TimestampWrite = 64` |
| [OpcAnalogItemNode<T>.DataType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcanalogitemnode-1/members#datatype) | `public override OpcDataType DataType { get; set; }` |
| [OpcArgument.ArrayDimensions](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#arraydimensions) | `public uint[] ArrayDimensions { get; }` |
| [OpcArgument.ArrayLength](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#arraylength) | `public long ArrayLength { get; }` |
| [OpcArgument.ArrayRank](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#arrayrank) | `public int ArrayRank { get; }` |
| [OpcArgument.GetArrayLength](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#getarraylength) | `public long GetArrayLength(int dimension)` |
| [OpcArgument.GetArrayLowerBound](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#getarraylowerbound) | `public long GetArrayLowerBound(int dimension)` |
| [OpcArgument.GetArrayUpperBound](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#getarrayupperbound) | `public long GetArrayUpperBound(int dimension)` |
| [OpcArgument.IsArray](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcargument/members#isarray) | `public bool IsArray { get; }` |
| [OpcAttributeWriteAccess.IsHistorizing](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattributewriteaccess/#ishistorizing) | `IsHistorizing = 512` |
| [OpcAttributeWriteAccess.NodeCategory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattributewriteaccess/#nodecategory) | `NodeCategory = 8192` |
| [OpcAutomatism.UseDynamic](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcautomatism/members#usedynamic) | `public static bool UseDynamic { get; set; }` |
| [OpcAutomatism.UseDynamicTypeRegistration](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcautomatism/members#usedynamictyperegistration) | `public static bool UseDynamicTypeRegistration { get; set; }` |
| [OpcByteOrder](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcbyteorder/)2 members | `public enum OpcByteOrder` |
| [OpcCallMethod](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccallmethod/)6 members | `public class OpcCallMethod : OpcNodeServiceCommand` |
| [OpcCallMethodCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccallmethodcollection/)1 member | `public class OpcCallMethodCollection : Collection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
| [OpcConditionVariableNode<T>.DataType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcconditionvariablenode-1/members#datatype) | `public override OpcDataType DataType { get; set; }` |
| [OpcData](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdata/)24 members | `[OpcDataType(22)] public abstract class OpcData` |
| [OpcDataField](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatafield/)10 members | `public sealed class OpcDataField` |
| [OpcDataFieldInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatafieldinfo/)14 members | `public class OpcDataFieldInfo : IOpcDataFieldInfo` |
| [OpcDataObject](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdataobject/)7 members | `public sealed class OpcDataObject : OpcData, IDynamicMetaObjectProvider` |
| [OpcDataSurrogate](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatasurrogate/)2 members | `public abstract class OpcDataSurrogate` |
| [OpcDataTypeAttribute.Description](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeattribute/members#description) | `public string Description { get; set; }` |
| [OpcDataTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeattribute/members#opcdatatypeattribute-system-byte-array-system-string) | `public OpcDataTypeAttribute(byte[] id, string namespaceUri)` |
| [OpcDataTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeattribute/members#opcdatatypeattribute-system-int32-system-string) | `public OpcDataTypeAttribute(int id, string namespaceUri)` |
| [OpcDataTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeattribute/members#opcdatatypeattribute-system-string-system-string) | `public OpcDataTypeAttribute(string id, string namespaceUri)` |
| [OpcDataTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeattribute/members#opcdatatypeattribute-system-uint32-system-string) | `public OpcDataTypeAttribute(uint id, string namespaceUri)` |
| [OpcDataTypeDictionary](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypedictionary/)29 members | `public abstract class OpcDataTypeDictionary : IOpcTypeProvider` |
| [OpcDataTypeEncodingAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeencodingattribute/)16 members | `[AttributeUsage(AttributeTargets.Class\|AttributeTargets.Struct\|AttributeTargets.Enum, AllowMultiple = true, Inherited = false)] public class OpcDataTypeEncodingAttribute : Attribute` |
| [OpcDataTypeEncodingMaskAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeencodingmaskattribute/)6 members | `[AttributeUsage(AttributeTargets.Class\|AttributeTargets.Struct, AllowMultiple = false, Inherited = false)] public class OpcDataTypeEncodingMaskAttribute : Attribute` |
| [OpcDataTypeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeinfo/)36 members | `public abstract class OpcDataTypeInfo : IOpcType, IOpcDataTypeInfo` |
| [OpcDataTypeMemberAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypememberattribute/)5 members | `[AttributeUsage(AttributeTargets.Property\|AttributeTargets.Field, AllowMultiple = false, Inherited = false)] public class OpcDataTypeMemberAttribute : Attribute` |
| [OpcDataTypeMemberLengthAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypememberlengthattribute/)5 members | `[AttributeUsage(AttributeTargets.Property\|AttributeTargets.Field, AllowMultiple = false, Inherited = false)] public class OpcDataTypeMemberLengthAttribute : Attribute` |
| [OpcDataTypeMemberOffsetAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypememberoffsetattribute/)2 members | `[AttributeUsage(AttributeTargets.Property\|AttributeTargets.Field, AllowMultiple = false, Inherited = false)] public class OpcDataTypeMemberOffsetAttribute : Attribute` |
| [OpcDataTypeMemberSwitchAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypememberswitchattribute/)10 members | `[AttributeUsage(AttributeTargets.Property\|AttributeTargets.Field, AllowMultiple = false, Inherited = false)] public class OpcDataTypeMemberSwitchAttribute : Attribute` |
| [OpcDataTypeSystem](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypesystem/)38 members | `public abstract class OpcDataTypeSystem : IOpcTypeProvider` |
| [OpcEncoding](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcencoding/)21 members | `public class OpcEncoding : IEquatable` |
| [OpcEncodingMask](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcencodingmask/)6 members | `public class OpcEncodingMask` |
| [OpcEncodingMaskKind](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcencodingmaskkind/)3 members | `public enum OpcEncodingMaskKind` |
| [OpcEncodingStackFrame](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcencodingstackframe/)12 members | `public class OpcEncodingStackFrame` |
| [OpcEncodingStackTrace](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcencodingstacktrace/)7 members | `public class OpcEncodingStackTrace : IEnumerable, IEnumerable` |
| [OpcEncodingType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcencodingtype/)2 members | `public enum OpcEncodingType` |
| [OpcEvent.RegisterType<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#registertype-t1) | `public static void RegisterType() where T : OpcEvent` |
| [OpcEvent.RegisterType<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#registertype-t1-opc-uafx-opcnodeid) | `public static void RegisterType(OpcNodeId eventTypeId) where T : OpcEvent` |
| [OpcEvent.RegisterTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#registertypes-system-reflection-assembly) | `public static void RegisterTypes(Assembly assembly)` |
| [OpcEvent.RegisterTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#registertypes-system-collections-generic-ienumerable-of-system-type) | `public static void RegisterTypes(IEnumerable eventTypes)` |
| [OpcEvent.RegisterTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#registertypes-system-type-system-type-array) | `public static void RegisterTypes(Type eventType, params Type[] eventTypes)` |
| [OpcEvent.TypeResolve](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#typeresolve) | `public static event OpcTypeResolveEventHandler TypeResolve` |
| [OpcEvent.UnregisterType<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#unregistertype-t1) | `public static void UnregisterType() where T : OpcEvent` |
| [OpcEvent.UnregisterType<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#unregistertype-t1-opc-uafx-opcnodeid) | `public static void UnregisterType(OpcNodeId eventTypeId) where T : OpcEvent` |
| [OpcEvent.UnregisterTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#unregistertypes-system-reflection-assembly) | `public static void UnregisterTypes(Assembly assembly)` |
| [OpcEvent.UnregisterTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#unregistertypes-system-collections-generic-ienumerable-of-system-type) | `public static void UnregisterTypes(IEnumerable eventTypes)` |
| [OpcEvent.UnregisterTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#unregistertypes-system-type-system-type-array) | `public static void UnregisterTypes(Type eventType, params Type[] eventTypes)` |
| OpcEventNodeView.Get<T> | `public T Get(OpcAttribute attribute, OpcName name)` |
| OpcEventNodeView.Get<T> | `public T Get(OpcName name)` |
| [OpcEventTypeAttribute.Id](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#id) | `public OpcNodeId Id { get; }` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-byte-array-system-int32) | `public OpcEventTypeAttribute(byte[] id, int namespaceIndex)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-byte-array-system-string) | `public OpcEventTypeAttribute(byte[] id, string namespaceUri)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-byte-array) | `public OpcEventTypeAttribute(byte[] id)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-int32-system-int32) | `public OpcEventTypeAttribute(int id, int namespaceIndex)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-int32-system-string) | `public OpcEventTypeAttribute(int id, string namespaceUri)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-int32) | `public OpcEventTypeAttribute(int id)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-string-system-int32) | `public OpcEventTypeAttribute(string id, int namespaceIndex)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-string-system-string) | `public OpcEventTypeAttribute(string id, string namespaceUri)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-string) | `public OpcEventTypeAttribute(string id)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-uint32-system-int32) | `public OpcEventTypeAttribute(uint id, int namespaceIndex)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-uint32-system-string) | `public OpcEventTypeAttribute(uint id, string namespaceUri)` |
| [OpcEventTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#opceventtypeattribute-system-uint32) | `public OpcEventTypeAttribute(uint id)` |
| [OpcException.GetBaseException](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexception/members#getbaseexception) | `public override Exception GetBaseException()` |
| [OpcException.ToString](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexception/members#tostring) | `public override string ToString()` |
| [OpcInstanceNodeSnapshot.Get<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenodesnapshot/members#get-t1-opc-uafx-opcattribute-opc-uafx-opcname) | `public T Get(OpcAttribute attribute, OpcName name)` |
| [OpcInstanceNodeSnapshot.Get<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenodesnapshot/members#get-t1-opc-uafx-opcname) | `public T Get(OpcName name)` |
| [OpcMemberLength](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmemberlength/)5 members | `public class OpcMemberLength` |
| [OpcMemberSwitch](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmemberswitch/)10 members | `public class OpcMemberSwitch` |
| [OpcMemberSwitchOperator](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmemberswitchoperator/)6 members | `public enum OpcMemberSwitchOperator` |
| [OpcNamespace.Create](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#create-system-string-system-int32) | `public static OpcNamespace Create(string value, int index)` |
| [OpcNamespace.Create](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#create-system-string) | `public static OpcNamespace Create(string value)` |
| [OpcNamespace.Create](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#create-system-uri-system-int32) | `public static OpcNamespace Create(Uri uri, int index)` |
| [OpcNamespace.TryCreate](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#trycreate-system-uri-system-int32-opc-uafx-opcnamespace-ref) | `public static bool TryCreate(Uri uri, int index, out OpcNamespace nodeNamespace)` |
| [OpcNamespace.Value](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#value) | `public string Value { get; }` |
| [OpcNodeAttribute<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeattribute-1/)27 members | `public class OpcNodeAttribute : OpcValue, IFormattable, IComparable, IEquatable, IComparable>, IEquatable>, IOpcNodeAttribute, IOpcNodeDescriptor, IComparable, IComparable>, IEquatable>` |
| [OpcNodeSet](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodeset/)6 members | `public class OpcNodeSet` |
| [OpcNodeValue<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodevalue-1/)26 members | `public class OpcNodeValue : OpcNodeAttribute, IFormattable, IComparable, IEquatable, IComparable>, IEquatable>, IComparable>, IEquatable>, IOpcNodeValue, IOpcNodeAttribute, IOpcNodeDescriptor, IComparable, IComparable>, IEquatable>` |
| [OpcNodeValuePair](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnodevaluepair/)5 members | `public struct OpcNodeValuePair` |
| [OpcPropertyNode<T>.DataType](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcpropertynode-1/members#datatype) | `public override OpcDataType DataType { get; set; }` |
| [OpcRegisterNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcregisternode/)1 member | `public class OpcRegisterNode : OpcNodeServiceCommand` |
| [OpcRegisterNodeCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcregisternodecollection/)1 member | `public class OpcRegisterNodeCollection : Collection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
| [OpcResult.GetBaseResult](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcresult/members#getbaseresult) | `public OpcResult GetBaseResult()` |
| [OpcStatus.Update](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatus/members#update-opc-uafx-opcstatus) | `public void Update(OpcStatus other)` |
| [OpcTypeCategory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypecategory/)5 members | `public enum OpcTypeCategory` |
| [OpcTypeDecodingFailedEventArgs](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypedecodingfailedeventargs/)16 members | `public class OpcTypeDecodingFailedEventArgs : EventArgs, IDisposable` |
| [OpcTypeDecodingFailedEventHandler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypedecodingfailedeventhandler/) | `public delegate void OpcTypeDecodingFailedEventHandler(object sender, OpcTypeDecodingFailedEventArgs e)` |
| [OpcTypeEncodingFailedEventArgs](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypeencodingfailedeventargs/)16 members | `public class OpcTypeEncodingFailedEventArgs : EventArgs, IDisposable` |
| [OpcTypeEncodingFailedEventHandler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypeencodingfailedeventhandler/) | `public delegate void OpcTypeEncodingFailedEventHandler(object sender, OpcTypeEncodingFailedEventArgs e)` |
| [OpcTypeResolveEventArgs](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctyperesolveeventargs/)5 members | `public class OpcTypeResolveEventArgs : EventArgs` |
| [OpcTypeResolveEventHandler](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctyperesolveeventhandler/) | `public delegate void OpcTypeResolveEventHandler(object sender, OpcTypeResolveEventArgs e)` |
| [OpcTypes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctypes/)8 members | `public static class OpcTypes` |
| [OpcUnregisterNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcunregisternode/)1 member | `public class OpcUnregisterNode : OpcNodeServiceCommand` |
| [OpcUnregisterNodeCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcunregisternodecollection/)1 member | `public class OpcUnregisterNodeCollection : Collection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
| [OpcValue.AsValue<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#asvalue) | `public OpcValue AsValue()` |
| [OpcValue<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue-1/)26 members | `public class OpcValue : OpcValue, IFormattable, IComparable, IEquatable, IComparable, IComparable>, IEquatable>` |
### Opc.UaFx.Classic
| Symbol | Signature |
|---|---|
| [OpcClassicApplicationDescription](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicapplicationdescription/)10 members | `public class OpcClassicApplicationDescription` |
| [OpcClassicApplicationDescriptionCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicapplicationdescriptioncollection/)2 members | `public class OpcClassicApplicationDescriptionCollection : KeyedCollection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
| [OpcClassicEndpointDescription](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicendpointdescription/)10 members | `public class OpcClassicEndpointDescription` |
| [OpcClassicEndpointDescriptionCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicendpointdescriptioncollection/)1 member | `public class OpcClassicEndpointDescriptionCollection : Collection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
| [OpcClassicInterface](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicinterface/)7 members | `public class OpcClassicInterface` |
| [OpcClassicInterfaceCategory](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicinterfacecategory/)3 members | `public enum OpcClassicInterfaceCategory` |
| [OpcClassicInterfaceCollection](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicinterfacecollection/)2 members | `public class OpcClassicInterfaceCollection : KeyedCollection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
| [OpcClassicInterfaces](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.classic.opcclassicinterfaces/)6 members | `public static class OpcClassicInterfaces` |
### Opc.UaFx.Client
| Symbol | Signature |
|---|---|
| OpcBrowseNode.Category | `public OpcNodeCategory Category { get; set; }` |
| OpcBrowseNode | `public OpcBrowseNode(OpcNodeId nodeId, IEnumerable referenceTypeIds)` |
| OpcBrowseNode | `public OpcBrowseNode(OpcNodeId nodeId, OpcBrowseNodeDegree degree, IEnumerable referenceTypeIds)` |
| OpcBrowseNode | `public OpcBrowseNode(OpcNodeId nodeId, OpcBrowseNodeDegree degree, params OpcNodeId[] referenceTypeIds)` |
| OpcBrowseNode | `public OpcBrowseNode(OpcNodeId nodeId, params OpcNodeId[] referenceTypeIds)` |
| OpcBrowseNode | `public OpcBrowseNode(OpcViewDescription view, OpcNodeId nodeId, IEnumerable referenceTypeIds)` |
| OpcBrowseNode | `public OpcBrowseNode(OpcViewDescription view, OpcNodeId nodeId, OpcBrowseNodeDegree degree, IEnumerable referenceTypeIds)` |
| OpcBrowseNode | `public OpcBrowseNode(OpcViewDescription view, OpcNodeId nodeId, OpcBrowseNodeDegree degree, params OpcNodeId[] referenceTypeIds)` |
| OpcBrowseNode.Options | `public OpcBrowseOptions Options { get; set; }` |
| OpcBrowseNode.ReferenceTypeIds | `public IEnumerable ReferenceTypeIds { get; }` |
| [OpcBrowseNodeContext.Options](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcbrowsenodecontext/members#options) | `public OpcBrowseOptions Options { get; }` |
| OpcClient.BrowseNodeIds | `public IEnumerable BrowseNodeIds(BrowsePathCollection pathsToTranslate)` |
| [OpcClient.CallAction](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-opc-uafx-opcnodeid-opc-uafx-opcnodeid) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId)` |
| [OpcClient.CallAction<T>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t1-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T parameter)` |
| [OpcClient.CallAction<T1, T2, T3, T4, T5, T6, T7, T8>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t8-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4-t5-t6-t7) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5, T6 parameter6, T7 parameter7, T8 parameter8)` |
| [OpcClient.CallAction<T1, T2, T3, T4, T5, T6, T7>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t7-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4-t5-t6) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5, T6 parameter6, T7 parameter7)` |
| [OpcClient.CallAction<T1, T2, T3, T4, T5, T6>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t6-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4-t5) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5, T6 parameter6)` |
| [OpcClient.CallAction<T1, T2, T3, T4, T5>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t5-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5)` |
| [OpcClient.CallAction<T1, T2, T3, T4>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t4-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4)` |
| [OpcClient.CallAction<T1, T2, T3>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t3-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3)` |
| [OpcClient.CallAction<T1, T2>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callaction#callaction-t2-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1) | `public void CallAction(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2)` |
| [OpcClient.CallFunc<T, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t2-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T parameter)` |
| [OpcClient.CallFunc<T1, T2, T3, T4, T5, T6, T7, T8, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t9-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4-t5-t6-t7) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5, T6 parameter6, T7 parameter7, T8 parameter8)` |
| [OpcClient.CallFunc<T1, T2, T3, T4, T5, T6, T7, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t8-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4-t5-t6) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5, T6 parameter6, T7 parameter7)` |
| [OpcClient.CallFunc<T1, T2, T3, T4, T5, T6, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t7-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4-t5) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5, T6 parameter6)` |
| [OpcClient.CallFunc<T1, T2, T3, T4, T5, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t6-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3-t4) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4, T5 parameter5)` |
| [OpcClient.CallFunc<T1, T2, T3, T4, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t5-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2-t3) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3, T4 parameter4)` |
| [OpcClient.CallFunc<T1, T2, T3, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t4-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1-t2) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2, T3 parameter3)` |
| [OpcClient.CallFunc<T1, T2, TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t3-opc-uafx-opcnodeid-opc-uafx-opcnodeid-t0-t1) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId, T1 parameter1, T2 parameter2)` |
| [OpcClient.CallFunc<TResult>](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callfunc#callfunc-t1-opc-uafx-opcnodeid-opc-uafx-opcnodeid) | `public TResult CallFunc(OpcNodeId objectId, OpcNodeId methodId)` |
| [OpcClient.CallMethods](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callmethods#callmethods-system-collections-generic-ienumerable-of-opc-uafx-opccallmethod) | `public object[][] CallMethods(IEnumerable commands)` |
| [OpcClient.CallMethods](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callmethods#callmethods-opc-uafx-opccallmethod-array) | `public object[][] CallMethods(params OpcCallMethod[] commands)` |
| [OpcClient.GetDataTypeSystem](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/getdatatypesystem) | `public OpcDataTypeSystem GetDataTypeSystem()` |
| [OpcClient.KeepAlive](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/keepalive) | `public OpcClientKeepAlive KeepAlive { get; }` |
| [OpcClient.NodeSet](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/nodeset) | `public OpcNodeSet NodeSet { get; set; }` |
| [OpcClient.ReadNodeValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodevalue) | `public OpcValue ReadNodeValue(IOpcNodeValue node)` |
| [OpcClient.ReadNodeValues](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodevalues#readnodevalues-system-collections-generic-ienumerable-of-opc-uafx-iopcnodevalue) | `public IEnumerable ReadNodeValues(IEnumerable nodes)` |
| [OpcClient.ReadNodeValues](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/readnodevalues#readnodevalues-opc-uafx-iopcnodevalue-array) | `public IEnumerable ReadNodeValues(params IOpcNodeValue[] nodes)` |
| [OpcClient.RegisterNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/registernode#registernode-opc-uafx-opcnodeid) | `public OpcNodeId RegisterNode(OpcNodeId nodeId)` |
| [OpcClient.RegisterNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/registernode#registernode-opc-uafx-opcregisternode) | `public OpcNodeId RegisterNode(OpcRegisterNode command)` |
| [OpcClient.RegisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/registernodes#registernodes-system-collections-generic-ienumerable-of-opc-uafx-opcnodeid) | `public OpcNodeIdCollection RegisterNodes(IEnumerable nodeIds)` |
| [OpcClient.RegisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/registernodes#registernodes-system-collections-generic-ienumerable-of-opc-uafx-opcregisternode) | `public OpcNodeIdCollection RegisterNodes(IEnumerable commands)` |
| [OpcClient.RegisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/registernodes#registernodes-opc-uafx-opcnodeid-array) | `public OpcNodeIdCollection RegisterNodes(params OpcNodeId[] nodeIds)` |
| [OpcClient.RegisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/registernodes#registernodes-opc-uafx-opcregisternode-array) | `public OpcNodeIdCollection RegisterNodes(params OpcRegisterNode[] commands)` |
| [OpcClient.ServerInterfaces](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/serverinterfaces) | `public OpcClassicInterfaceCollection ServerInterfaces { get; }` |
| [OpcClient.UnregisterNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/unregisternode#unregisternode-opc-uafx-opcnodeid) | `public void UnregisterNode(OpcNodeId nodeId)` |
| [OpcClient.UnregisterNode](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/unregisternode#unregisternode-opc-uafx-opcunregisternode) | `public void UnregisterNode(OpcUnregisterNode command)` |
| [OpcClient.UnregisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/unregisternodes#unregisternodes-system-collections-generic-ienumerable-of-opc-uafx-opcnodeid) | `public void UnregisterNodes(IEnumerable nodeIds)` |
| [OpcClient.UnregisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/unregisternodes#unregisternodes-system-collections-generic-ienumerable-of-opc-uafx-opcunregisternode) | `public void UnregisterNodes(IEnumerable commands)` |
| [OpcClient.UnregisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/unregisternodes#unregisternodes-opc-uafx-opcnodeid-array) | `public void UnregisterNodes(params OpcNodeId[] nodeIds)` |
| [OpcClient.UnregisterNodes](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/unregisternodes#unregisternodes-opc-uafx-opcunregisternode-array) | `public void UnregisterNodes(params OpcUnregisterNode[] commands)` |
| [OpcClient.UseDynamic](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/usedynamic) | `public bool UseDynamic { get; set; }` |
| [OpcClient.WriteNodeValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/writenodevalue) | `public OpcStatus WriteNodeValue(IOpcNodeValue node, object value)` |
| [OpcClient.WriteNodeValues](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/writenodevalues#writenodevalues-system-collections-generic-ienumerable-of-opc-uafx-opcnodevaluepair) | `public OpcStatusCollection WriteNodeValues(IEnumerable nodeValues)` |
| [OpcClient.WriteNodeValues](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/writenodevalues#writenodevalues-opc-uafx-opcnodevaluepair-array) | `public OpcStatusCollection WriteNodeValues(params OpcNodeValuePair[] nodeValues)` |
| [OpcClientKeepAlive](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclientkeepalive/)12 members | `public class OpcClientKeepAlive` |
| [OpcClientState.Reconnected](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclientstate/#reconnected) | `Reconnected = 6` |
| [OpcClientState.Reconnecting](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclientstate/#reconnecting) | `Reconnecting = 5` |
| [OpcDataTypeDescriptionNodeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcdatatypedescriptionnodeinfo/)1 member | `public class OpcDataTypeDescriptionNodeInfo : OpcVariableNodeInfo` |
| [OpcDataTypeDictionaryNodeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcdatatypedictionarynodeinfo/)2 members | `public class OpcDataTypeDictionaryNodeInfo : OpcVariableNodeInfo` |
| [OpcDataTypeEncodingNodeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcdatatypeencodingnodeinfo/)1 member | `public class OpcDataTypeEncodingNodeInfo : OpcObjectNodeInfo` |
| [OpcDataTypeNodeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcdatatypenodeinfo/)2 members | `public class OpcDataTypeNodeInfo : OpcTypeNodeInfo` |
| [OpcDataTypeSystemNodeInfo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcdatatypesystemnodeinfo/)1 member | `public class OpcDataTypeSystemNodeInfo : OpcObjectNodeInfo` |
| [OpcNodeInfo.Children](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcnodeinfo/members#children-opc-uafx-opcreferencetype) | `public IEnumerable Children(OpcReferenceType referenceType)` |
| [OpcNodeInfo.Parents](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcnodeinfo/members#parents-opc-uafx-opcreferencetype) | `public IEnumerable Parents(OpcReferenceType referenceType)` |
| [OpcNodeStream](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcnodestream/)15 members | `public class OpcNodeStream : Stream, IDisposable` |
| [OpcNodeValueExtensions](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcnodevalueextensions/)7 members | `public static class OpcNodeValueExtensions` |
### Opc.UaFx.Client.Classic
| Symbol | Signature |
|---|---|
| [OpcClassicDiscoveryClient](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.classic.opcclassicdiscoveryclient/)10 members | `public class OpcClassicDiscoveryClient : IDisposable` |
### Opc.UaFx.Server
| Symbol | Signature |
|---|---|
| [OpcAddressSpace.Namespaces](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcaddressspace/members#namespaces) | `public OpcReadOnlyNamespaceCollection Namespaces { get; }` |
| [OpcNodeManager.DefaultNamespaceValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcnodemanager/members#defaultnamespacevalue) | `public string DefaultNamespaceValue { get; }` |
| [OpcNodeManager.Namespaces](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcnodemanager/members#namespaces) | `public OpcReadOnlyNamespaceCollection Namespaces { get; }` |
| [OpcNodeManager](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcnodemanager/members#opcnodemanager-opc-uafx-opcnamespace-opc-uafx-opcnamespace-array) | `protected OpcNodeManager(OpcNamespace defaultNamespace, params OpcNamespace[] namespaces)` |
| OpcReadOnlyNamespaceCollection1 member | `public class OpcReadOnlyNamespaceCollection : ReadOnlyCollection, IList, ICollection, IReadOnlyList, IReadOnlyCollection, IEnumerable, IList, ICollection, IEnumerable` |
### Opc.UaFx.Services
| Symbol | Signature |
|---|---|
| [IOpcCallMethodsService.CallMethods](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopccallmethodsservice/members#callmethods-system-collections-generic-ienumerable-of-opc-uafx-opccallmethod) | `[CLSCompliant(false)] CallMethodResultCollection CallMethods(IEnumerable methodsToCall)` |
| [IOpcCallMethodsService.CallMethods](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopccallmethodsservice/members#callmethods-opc-uafx-opccallmethod-array) | `[CLSCompliant(false)] CallMethodResultCollection CallMethods(params OpcCallMethod[] methodsToCall)` |
| [IOpcRegisterNodesService](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcregisternodesservice/)2 members | `[CLSCompliant(false)] public interface IOpcRegisterNodesService : IOpcService` |
| [IOpcUnregisterNodesService](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.iopcunregisternodesservice/)2 members | `[CLSCompliant(false)] public interface IOpcUnregisterNodesService : IOpcService` |
| [OpcCallMethodsRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opccallmethodsrequest/members#opccallmethodsrequest-system-collections-generic-ienumerable-of-opc-uafx-opccallmethod) | `public OpcCallMethodsRequest(IEnumerable commands)` |
| [OpcCallMethodsRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opccallmethodsrequest/members#opccallmethodsrequest-opc-uafx-services-iopcservicerequestheader-system-collections-generic-ienumerable-of-opc-uafx-opccallmethod) | `public OpcCallMethodsRequest(IOpcServiceRequestHeader header, IEnumerable commands)` |
| [OpcCallMethodsRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opccallmethodsrequest/members#opccallmethodsrequest-opc-uafx-services-iopcservicerequestheader-opc-uafx-opccallmethod-array) | `public OpcCallMethodsRequest(IOpcServiceRequestHeader header, params OpcCallMethod[] commands)` |
| [OpcCallMethodsRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opccallmethodsrequest/members#opccallmethodsrequest-opc-uafx-opccallmethod-array) | `public OpcCallMethodsRequest(params OpcCallMethod[] commands)` |
| [OpcRegisterNodesRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcregisternodesrequest/)4 members | `public class OpcRegisterNodesRequest : OpcServiceRequest, IOpcServiceRequest` |
| [OpcRegisterNodesResponse](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcregisternodesresponse/)3 members | `[CLSCompliant(false)] public class OpcRegisterNodesResponse : OpcServiceResponse, IOpcServiceResponse` |
| [OpcUnregisterNodesRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcunregisternodesrequest/)4 members | `public class OpcUnregisterNodesRequest : OpcServiceRequest, IOpcServiceRequest` |
| [OpcUnregisterNodesResponse](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opcunregisternodesresponse/)1 member | `[CLSCompliant(false)] public class OpcUnregisterNodesResponse : OpcServiceResponse, IOpcServiceResponse` |
## Removed
### Opc.UaFx
| Symbol | Signature |
|---|---|
| IOpcEventFactory1 member | `public interface IOpcEventFactory` |
| IOpcReadOnlyDataStore4 members | `public interface IOpcReadOnlyDataStore` |
| OpcArgument.ValueRank | `public int ValueRank { get; }` |
| OpcAttributeWriteAccess.Historizing | `Historizing = 512` |
| OpcAttributeWriteAccess.NodeClass | `NodeClass = 8192` |
| OpcEvent.Register<T> | `public static void Register(OpcNodeId eventTypeId) where T : OpcEvent` |
| OpcEvent.RegisterFactory | `public static void RegisterFactory(IOpcEventFactory factory)` |
| OpcEvent.RegisterFactory | `public static void RegisterFactory(OpcEventCreator creator)` |
| OpcEvent.Unregister<T> | `public static void Unregister(OpcNodeId eventTypeId) where T : OpcEvent` |
| OpcEvent.UnregisterFactory | `public static void UnregisterFactory(IOpcEventFactory factory)` |
| OpcEvent.UnregisterFactory | `public static void UnregisterFactory(OpcEventCreator creator)` |
| OpcEventCreator | `public delegate OpcEvent OpcEventCreator(OpcNodeId eventTypeId, IOpcReadOnlyDataStore dataStore)` |
### Opc.UaFx.Client
| Symbol | Signature |
|---|---|
| OpcCallMethod6 members | `public class OpcCallMethod : OpcNodeServiceCommand` |
| OpcClient.CallMethods | `public object[][] CallMethods(IEnumerable commands)` |
| OpcClient.CallMethods | `public object[][] CallMethods(params OpcCallMethod[] commands)` |
### Opc.UaFx.Server
| Symbol | Signature |
|---|---|
| OpcAddressSpace.NamespaceIndexes | `public OpcReadOnlyNamespaceIndexCollection NamespaceIndexes { get; }` |
| OpcAddressSpace.NamespaceUris | `public OpcReadOnlyNamespaceUriCollection NamespaceUris { get; }` |
| OpcNodeManager.NamespaceIndexes | `public OpcReadOnlyNamespaceIndexCollection NamespaceIndexes { get; }` |
| OpcNodeManager.NamespaceUris | `public OpcReadOnlyNamespaceUriCollection NamespaceUris { get; }` |
### Opc.UaFx.Services
| Symbol | Signature |
|---|---|
| IOpcCallMethodsService.CallMethods | `[CLSCompliant(false)] CallMethodResultCollection CallMethods(IEnumerable methodsToCall)` |
| IOpcCallMethodsService.CallMethods | `[CLSCompliant(false)] CallMethodResultCollection CallMethods(params CallMethodRequest[] methodsToCall)` |
| OpcCallMethodsRequest | `[CLSCompliant(false)] public OpcCallMethodsRequest(IEnumerable commands)` |
| OpcCallMethodsRequest | `[CLSCompliant(false)] public OpcCallMethodsRequest(IOpcServiceRequestHeader header, IEnumerable commands)` |
| OpcCallMethodsRequest | `[CLSCompliant(false)] public OpcCallMethodsRequest(IOpcServiceRequestHeader header, params CallMethodRequest[] commands)` |
| OpcCallMethodsRequest | `[CLSCompliant(false)] public OpcCallMethodsRequest(params CallMethodRequest[] commands)` |
## Changed
### Opc.UaFx
| Symbol | Signature (old, new) |
|---|---|
| [OpcAcknowledgeableCondition](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcacknowledgeablecondition/members#opcacknowledgeablecondition) | `public OpcAcknowledgeableCondition(IOpcReadOnlyDataStore dataStore)`
`public OpcAcknowledgeableCondition(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcAlarmCondition](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcalarmcondition/members#opcalarmcondition) | `public OpcAlarmCondition(IOpcReadOnlyDataStore dataStore)`
`public OpcAlarmCondition(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcAttributeWriteAccess](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcattributewriteaccess/) | `public enum OpcAttributeWriteAccess`
`[Flags] public enum OpcAttributeWriteAccess` |
| [OpcCondition](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opccondition/members#opccondition) | `public OpcCondition(IOpcReadOnlyDataStore dataStore)`
`public OpcCondition(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcDataTypeAttribute](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdatatypeattribute/) | `[AttributeUsage(AttributeTargets.Class\|AttributeTargets.Enum, AllowMultiple = false, Inherited = false)] public class OpcDataTypeAttribute : Attribute`
`[AttributeUsage(AttributeTargets.Class\|AttributeTargets.Struct\|AttributeTargets.Enum, AllowMultiple = false, Inherited = false)] public class OpcDataTypeAttribute : Attribute` |
| [OpcDialogCondition](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdialogcondition/members#opcdialogcondition) | `public OpcDialogCondition(IOpcReadOnlyDataStore dataStore)`
`public OpcDialogCondition(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcDiscreteAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcdiscretealarm/members#opcdiscretealarm) | `public OpcDiscreteAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcDiscreteAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcEvent.DataStore](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#datastore) | `protected IOpcReadOnlyDataStore DataStore { get; }`
`protected IOpcReadOnlyNodeDataStore DataStore { get; }` |
| [OpcEvent](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcevent/members#opcevent) | `public OpcEvent(IOpcReadOnlyDataStore dataStore)`
`public OpcEvent(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcEventNode.EventTypeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventnode/members#eventtypeid) | `public OpcNodeId EventTypeId { get; }`
`public OpcNodeId EventTypeId { get; set; }` |
| [OpcEventNodeSnapshot](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventnodesnapshot/) | `public class OpcEventNodeSnapshot : OpcInstanceNodeSnapshot, IOpcReadOnlyDataStore`
`public class OpcEventNodeSnapshot : OpcInstanceNodeSnapshot, IOpcReadOnlyNodeDataStore` |
| [OpcEventNodeView](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventnodeview/) | `public class OpcEventNodeView : IOpcReadOnlyDataStore`
`public class OpcEventNodeView : IOpcReadOnlyNodeDataStore` |
| [OpcEventTypeAttribute.Type](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opceventtypeattribute/members#type) | `public Type Type { get; }`
`public Type Type { get; set; }` |
| [OpcExclusiveDeviationAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexclusivedeviationalarm/members#opcexclusivedeviationalarm) | `public OpcExclusiveDeviationAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcExclusiveDeviationAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcExclusiveLevelAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexclusivelevelalarm/members#opcexclusivelevelalarm) | `public OpcExclusiveLevelAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcExclusiveLevelAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcExclusiveLimitAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexclusivelimitalarm/members#opcexclusivelimitalarm) | `public OpcExclusiveLimitAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcExclusiveLimitAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcExclusiveRateOfChangeAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcexclusiverateofchangealarm/members#opcexclusiverateofchangealarm) | `public OpcExclusiveRateOfChangeAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcExclusiveRateOfChangeAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opchistoryvalue/) | `public class OpcHistoryValue : OpcValue, IFormattable, IComparable`
`public class OpcHistoryValue : OpcValue, IFormattable, IComparable, IComparable, IEquatable` |
| [OpcInstanceNodeSnapshot](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcinstancenodesnapshot/) | `public class OpcInstanceNodeSnapshot : IOpcReadOnlyDataStore`
`public class OpcInstanceNodeSnapshot : IOpcReadOnlyNodeDataStore` |
| [OpcLimitAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opclimitalarm/members#opclimitalarm) | `public OpcLimitAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcLimitAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcModifiedHistoryValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcmodifiedhistoryvalue/) | `public class OpcModifiedHistoryValue : OpcHistoryValue, IFormattable, IComparable`
`public class OpcModifiedHistoryValue : OpcHistoryValue, IFormattable, IComparable, IComparable, IEquatable` |
| [OpcNamespace.Get](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#get-system-int32-system-string) | `public static OpcNamespace Get(int namespaceIndex, string namespaceUri)`
`public static OpcNamespace Get(int namespaceIndex, string namespaceValue)` |
| [OpcNamespace.Get](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnamespace/members#get-system-string) | `public static OpcNamespace Get(string namespaceUri)`
`public static OpcNamespace Get(string namespaceUriOrValue)` |
| [OpcNonExclusiveDeviationAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnonexclusivedeviationalarm/members#opcnonexclusivedeviationalarm) | `public OpcNonExclusiveDeviationAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcNonExclusiveDeviationAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcNonExclusiveLevelAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnonexclusivelevelalarm/members#opcnonexclusivelevelalarm) | `public OpcNonExclusiveLevelAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcNonExclusiveLevelAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcNonExclusiveLimitAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnonexclusivelimitalarm/members#opcnonexclusivelimitalarm) | `public OpcNonExclusiveLimitAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcNonExclusiveLimitAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcNonExclusiveRateOfChangeAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnonexclusiverateofchangealarm/members#opcnonexclusiverateofchangealarm) | `public OpcNonExclusiveRateOfChangeAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcNonExclusiveRateOfChangeAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcNotification.SequenceNumber](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcnotification/members#sequencenumber) | `public int SequenceNumber { get; }`
`public long SequenceNumber { get; }` |
| [OpcOffNormalAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcoffnormalalarm/members#opcoffnormalalarm) | `public OpcOffNormalAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcOffNormalAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcStatusAggregateBits](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatusaggregatebits/) | `public enum OpcStatusAggregateBits`
`[Flags] public enum OpcStatusAggregateBits` |
| [OpcStatusAggregateBits.DataSourceMask](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatusaggregatebits/#datasourcemask) | `DataSourceMask = 3`
`DataSourceMask = Calculated \| Interpolated` |
| [OpcStatusLimitBits](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuslimitbits/) | `public enum OpcStatusLimitBits`
`[Flags] public enum OpcStatusLimitBits` |
| [OpcStatusLimitBits.Constant](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcstatuslimitbits/#constant) | `Constant = 768`
`Constant = Low \| High` |
| [OpcTransport.DefaultMaxByteStringLength](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctransport/members#defaultmaxbytestringlength) | `public const int DefaultMaxByteStringLength = 65535`
`public const int DefaultMaxByteStringLength = 5242880` |
| [OpcTransport.DefaultMaxMessageSize](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctransport/members#defaultmaxmessagesize) | `public const int DefaultMaxMessageSize = 1048576`
`public const int DefaultMaxMessageSize = 10485760` |
| [OpcTripAlarm](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opctripalarm/members#opctripalarm) | `public OpcTripAlarm(IOpcReadOnlyDataStore dataStore)`
`public OpcTripAlarm(IOpcReadOnlyNodeDataStore dataStore)` |
| [OpcValue](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/) | `public class OpcValue : IFormattable, IComparable`
`public class OpcValue : IFormattable, IComparable, IComparable, IEquatable` |
| [OpcValue.CompareTo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#compareto-system-object) | `public int CompareTo(object other)`
`public virtual int CompareTo(object other)` |
| [OpcValue.CompareTo](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#compareto-opc-uafx-opcvalue) | `public int CompareTo(OpcValue other)`
`public virtual int CompareTo(OpcValue other)` |
| [OpcValue.DataTypeId](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#datatypeid) | `public OpcNodeId DataTypeId { get; }`
`public virtual OpcNodeId DataTypeId { get; }` |
| [OpcValue.Equals](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#equals-opc-uafx-opcvalue) | `public bool Equals(OpcValue other)`
`public virtual bool Equals(OpcValue other)` |
| [OpcValue.ServerPicoseconds](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#serverpicoseconds) | `public int ServerPicoseconds { get; set; }`
`public ushort ServerPicoseconds { get; set; }` |
| [OpcValue.SourcePicoseconds](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.opcvalue/members#sourcepicoseconds) | `public int SourcePicoseconds { get; set; }`
`public ushort SourcePicoseconds { get; set; }` |
### Opc.UaFx.Client
| Symbol | Signature (old, new) |
|---|---|
| [OpcClient](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/) | `public class OpcClient : OpcApplicationInstance, IDisposable, IOpcApplicationInstance, IOpcNamespaceResolver, IOpcAddNodesService, IOpcService, IOpcAddReferencesService, IOpcService, IOpcBrowseService, IOpcService, IOpcBrowseNextService, IOpcService, IOpcCallMethodsService, IOpcService, IOpcDeleteNodesService, IOpcService, IOpcDeleteReferencesService, IOpcService, IOpcReadNodesService, IOpcService, IOpcReadNodesHistoryService, IOpcService, IOpcUpdateNodesHistoryService, IOpcService, IOpcWriteNodesService, IOpcService`
`public class OpcClient : OpcApplicationInstance, IDisposable, IOpcApplicationInstance, IOpcNamespaceResolver, IOpcAddNodesService, IOpcService, IOpcAddReferencesService, IOpcService, IOpcBrowseService, IOpcService, IOpcBrowseNextService, IOpcService, IOpcCallMethodsService, IOpcService, IOpcDeleteNodesService, IOpcService, IOpcDeleteReferencesService, IOpcService, IOpcReadNodesService, IOpcService, IOpcReadNodesHistoryService, IOpcService, IOpcRegisterNodesService, IOpcService, IOpcUnregisterNodesService, IOpcService, IOpcUpdateNodesHistoryService, IOpcService, IOpcWriteNodesService, IOpcService` |
| [OpcClient.CallMethod](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.client.opcclient/callmethod#callmethod-opc-uafx-opccallmethod) | `public object[] CallMethod(OpcCallMethod command)`
`public object[] CallMethod(OpcCallMethod command)` |
### Opc.UaFx.Server
| Symbol | Signature (old, new) |
|---|---|
| [OpcNodeManager](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.server.opcnodemanager/members#opcnodemanager-system-string-system-string-array) | `protected OpcNodeManager(string defaultNamespaceUri, params string[] namespaceUris)`
`protected OpcNodeManager(string defaultNamespace, params string[] namespaces)` |
### Opc.UaFx.Services
| Symbol | Signature (old, new) |
|---|---|
| [OpcCallMethodsRequest](https://www.traeger.de/en/docs/development/opcua/api/v2.59/opc.uafx.services.opccallmethodsrequest/) | `[CLSCompliant(false)] public class OpcCallMethodsRequest : OpcServiceRequest, IOpcServiceRequest`
`[CLSCompliant(false)] public class OpcCallMethodsRequest : OpcServiceRequest, IOpcServiceRequest` |
## Obsoleted
### Opc.UaFx
| Symbol | Message |
|---|---|
| IOpcNamespaceResolver.Resolve | Resolving a namespaceIndex to its namespaceUri is now handled by 'ResolveValue' in a generic way to provide a simple string-based value to support not well-formed namespace-URI information. |
| IOpcNamespaceResolver.Resolve | Resolving a namespaceUri to its namespaceIndex is now handled by 'ResolveIndex' in a generic way independent from a well-formed namespace-URI. |