<PackageReference Include="System.Diagnostics.DiagnosticSource" Version="5.0.0-preview.4.20251.6" />

---

API Differences between 5.0.0-preview.4.20251.6 and 10.0.0-preview.3.25171.5

24 Additions 78 Removals

System.Diagnostics

• public class Activity : IDisposable
  • public struct Enumerator<T>
  • public static Func<ActivityTraceId> TraceIdGenerator { get; set; }
  • public bool HasRemoteParent { get; }
  • public bool IsStopped { get; }
  • public ActivityStatusCode Status { get; }
  • public string StatusDescription { get; }
  • public IEnumerable<KeyValuePair<string, object>> TagObjects { get; }
  • public static event EventHandler<ActivityChangedEventArgs> CurrentChanged
  • public Activity AddException(Exception exception, ref TagList tags = null, DateTimeOffset timestamp = default)
  • public Activity AddLink(ActivityLink link)
  • public Activity AddTag(string key, object value)
  • public Enumerator<ActivityEvent> EnumerateEvents()
  • public Enumerator<ActivityLink> EnumerateLinks()
  • public Enumerator<KeyValuePair<string, object>> EnumerateTagObjects()
  • public object GetTagItem(string key)
  • public Activity SetBaggage(string key, string value)
  • public Activity SetStatus(ActivityStatusCode code, string description = null)
  • public Activity SetTag(string key, object value)
• public struct ActivityChangedEventArgs
• public struct ActivityContext : IEquatable<ActivityContext>
  • public bool IsRemote { get; }
  • public ActivityContext(ActivityTraceId traceId, ActivitySpanId spanId, ActivityTraceFlags traceFlags, string traceState = null, bool isRemote = false)
  • public ActivityContext(ActivityTraceId traceId, ActivitySpanId spanId, ActivityTraceFlags traceFlags, string traceState = null)
  • public static ActivityContext Parse(string traceParent, string traceState)
  • public static bool TryParse(string traceParent, string traceState, bool isRemote, out ActivityContext context)
  • public static bool TryParse(string traceParent, string traceState, out ActivityContext context)
• public struct ActivityCreationOptions<T>
  • public ActivityTagsCollection SamplingTags { get; }
  • public IEnumerable<KeyValuePair<string, object>> Tags { get; }
  • public ActivityTraceId TraceId { get; }
  • public string TraceState { get; set; }
  • public IEnumerable<KeyValuePair<string, string>> Tags { get; }
• public enum ActivityDataRequest
  • AllData = 2
  • AllDataAndRecorded = 3
  • None = 0
  • PropagationData = 1
• public struct ActivityEvent
  • public IEnumerable<KeyValuePair<string, object>> Attributes { get; }
  • public IEnumerable<KeyValuePair<string, object>> Tags { get; }
  • public ActivityEvent(string name, DateTimeOffset timestamp = default, ActivityTagsCollection tags = null)
  • public Enumerator<KeyValuePair<string, object>> EnumerateTagObjects()
  • public ActivityEvent(string name, DateTimeOffset timestamp)
  • public ActivityEvent(string name, IEnumerable<KeyValuePair<string, object>> attributes)
  • public ActivityEvent(string name, DateTimeOffset timestamp, IEnumerable<KeyValuePair<string, object>> attributes)
• public struct ActivityLink : IEquatable<ActivityLink>
  • public IEnumerable<KeyValuePair<string, object>> Attributes { get; }
  • public IEnumerable<KeyValuePair<string, object>> Tags { get; }
  • public ActivityLink(ActivityContext context, ActivityTagsCollection tags = null)
  • public ActivityLink(ActivityContext context)
  • public ActivityLink(ActivityContext context, IEnumerable<KeyValuePair<string, object>> attributes)
  • public Enumerator<KeyValuePair<string, object>> EnumerateTagObjects()
• public sealed class ActivityListener : IDisposable
  • public ExceptionRecorder ExceptionRecorder { get; set; }
  • public SampleActivity<ActivityContext> Sample { get; set; }
  • public SampleActivity<string> SampleUsingParentId { get; set; }
  • public GetRequestedData<ActivityContext> GetRequestedDataUsingContext { get; set; }
  • public GetRequestedData<string> GetRequestedDataUsingParentId { get; set; }
• public enum ActivitySamplingResult
• public sealed class ActivitySource : IDisposable
  • public IEnumerable<KeyValuePair<string, object>> Tags { get; }
  • public string TelemetrySchemaUrl { get; }
  • public ActivitySource(string name)
  • public ActivitySource(string name, string version = "", IEnumerable<KeyValuePair<string, object>> tags = null)
  • public ActivitySource(ActivitySourceOptions options)
  • public Activity CreateActivity(string name, ActivityKind kind)
  • public Activity CreateActivity(string name, ActivityKind kind, ActivityContext parentContext, IEnumerable<KeyValuePair<string, object>> tags = null, IEnumerable<ActivityLink> links = null, ActivityIdFormat idFormat = 0)
  • public Activity CreateActivity(string name, ActivityKind kind, string parentId, IEnumerable<KeyValuePair<string, object>> tags = null, IEnumerable<ActivityLink> links = null, ActivityIdFormat idFormat = 0)
  • public Activity StartActivity(string name, ActivityKind kind, ActivityContext parentContext, IEnumerable<KeyValuePair<string, object>> tags = null, IEnumerable<ActivityLink> links = null, DateTimeOffset startTime = default)
  • public Activity StartActivity(string name, ActivityKind kind, string parentId, IEnumerable<KeyValuePair<string, object>> tags = null, IEnumerable<ActivityLink> links = null, DateTimeOffset startTime = default)
  • public Activity StartActivity(ActivityKind kind, ActivityContext parentContext = default, IEnumerable<KeyValuePair<string, object>> tags = null, IEnumerable<ActivityLink> links = null, DateTimeOffset startTime = default, string name = "")
  • public Activity StartActivity(string name, ActivityKind kind, ActivityContext parentContext, IEnumerable<KeyValuePair<string, string>> tags = null, IEnumerable<ActivityLink> links = null, DateTimeOffset startTime = default)
  • public Activity StartActivity(string name, ActivityKind kind, string parentId, IEnumerable<KeyValuePair<string, string>> tags = null, IEnumerable<ActivityLink> links = null, DateTimeOffset startTime = default)
• public class ActivitySourceOptions
• public enum ActivityStatusCode
• public class ActivityTagsCollection : IDictionary<string, object>, ICollection<KeyValuePair<string, object>>, IEnumerable<KeyValuePair<string, object>>, IEnumerable
• public class DiagnosticListener : DiagnosticSource, IObservable<KeyValuePair<string, object>>, IDisposable
  • public virtual IDisposable Subscribe(IObserver<KeyValuePair<string, object>> observer, Func<string, object, object, bool> isEnabled, Action<Activity, object> onActivityImport = null, Action<Activity, object> onActivityExport = null)
  • public virtual IDisposable Subscribe(IObserver<KeyValuePair<string, object>> observer, Func<string, object, object, bool> isEnabled, Action<Activity, object> onActivityImport = null, Action<Activity, object> onActivityExport = null)
• public abstract class DiagnosticSource
  • public Activity StartActivity<T>(Activity activity, T args)
  • public void StopActivity<T>(Activity activity, T args)
  • public void Write<T>(string name, T value)
• public abstract class DistributedContextPropagator
• public sealed delegate ExceptionRecorder : MulticastDelegate
• public sealed delegate SampleActivity<T> : MulticastDelegate
• public struct TagList : IList<KeyValuePair<string, object>>, ICollection<KeyValuePair<string, object>>, IEnumerable<KeyValuePair<string, object>>, IEnumerable, IReadOnlyList<KeyValuePair<string, object>>, IReadOnlyCollection<KeyValuePair<string, object>>
• public sealed delegate GetRequestedData<T> : MulticastDelegate
  • public GetRequestedData(object object, IntPtr method)
  • public virtual IAsyncResult BeginInvoke(ref ActivityCreationOptions options, AsyncCallback callback, object object)
  • public virtual ActivityDataRequest EndInvoke(ref ActivityCreationOptions options, IAsyncResult result)
  • public virtual ActivityDataRequest Invoke(ref ActivityCreationOptions options)

System.Diagnostics.Metrics

• public sealed class Counter<T> : Instrument<T> where T : struct
• public sealed class Gauge<T> : Instrument<T> where T : struct
• public sealed class Histogram<T> : Instrument<T> where T : struct
• public interface IMeterFactory : IDisposable
• public abstract class Instrument
• public abstract class Instrument<T> : Instrument where T : struct
• public sealed class InstrumentAdvice<T> where T : struct
• public struct Measurement<T> where T : struct
• public sealed delegate MeasurementCallback<T> : MulticastDelegate where T : struct
• public class Meter : IDisposable
• public static class MeterFactoryExtensions
• public sealed class MeterListener : IDisposable
• public class MeterOptions
• public sealed class ObservableCounter<T> : ObservableInstrument<T> where T : struct
• public sealed class ObservableGauge<T> : ObservableInstrument<T> where T : struct
• public abstract class ObservableInstrument<T> : Instrument where T : struct
• public sealed class ObservableUpDownCounter<T> : ObservableInstrument<T> where T : struct
• public sealed class UpDownCounter<T> : Instrument<T> where T : struct