Remove a few internal references

.gitignore

@@ -308,6 +308,4 @@ BenchmarkDotNet.artifacts/
 
 /_TEST
 
-*.binlog
-
-/docs/releases/r9-packages.md
+*.binlog

.spelling

@@ -112,7 +112,6 @@ ECS
 ECS
 ejuvenate
 encodings
-eng.ms
 enricher
 Enricher
 enrichers
@@ -283,23 +282,6 @@ Protobuf-net
 PubSub
 QoS
 quantiles
-R9
-R9_RELEASE
-R9A000
-R9A001
-R9A002
-R9G000
-R9G001
-R9G002
-R9G003
-R9G004
-R9G005
-R9G006
-R9G007
-R9G008
-R9G009
-R9G010
-r9support
 Ramati
 ramping
 RDFE

bench/Libraries/Microsoft.Extensions.Http.Telemetry.PerformanceTests/BenchEnricher.cs

@@ -8,7 +8,7 @@ namespace Microsoft.Extensions.Http.Telemetry.Logging.Bench;
 
 internal sealed class BenchEnricher : IHttpClientLogEnricher
 {
-    private const string Key = "Performance in R9";
+    private const string Key = "Performance in .NET Extensions";
     private const string Value = "is paramount.";
 
     public void Enrich(IEnrichmentTagCollector collector, HttpRequestMessage? request = null,

eng/Tools/DiagConfig/README.md

@@ -12,28 +12,28 @@ refreshed as new analyzers are added or existing ones are modified.
 The lower a diagnostic's tier value, the more relatively important the diagnostic is.
 
 * A variable set of named attributes. Each attribute indicates a severity for the diagnostic, along with
-an optional comment. Attributes and their severities are maintained by the R9 team and are used to
+an optional comment. Attributes and their severities are maintained by the .NET Extensions team and are used to
 describe how to handle a given diagnostic for a given type of source code. More on attributes below.
 
 Here's an example diagnostic:
 
 ```yaml
 Diagnostics:
-  EA0001:
+  CA1001:
     Metadata:
-      Category: Performance
-      Title: Switch to `Microsoft.IO.RecyclableMemoryStream` for additional performance.
-      Description: Identifies uses of System.IO.MemoryStream.
-      HelpLinkUri: https://eng.ms/docs/experiences-devices/r9-sdk/docs/static-analysis-and-analyzers/analyzer/rules/r9a001
-      CustomTags: []
-    Tier: 1
+      Category: Design
+      Title: Types that own disposable fields should be disposable
+      Description: A class declares and implements an instance field that is a System.IDisposable type, and the class does not implement IDisposable. A class that declares an IDisposable field indirectly owns an unmanaged resource and should implement the IDisposable interface.
+      HelpLinkUri: https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca1001
+      CustomTags:
+      - PortedFromFxCop
+      - Telemetry
+      - EnabledRuleInAggressiveMode
+      DefaultSeverity: None
+    Tier: 2
     Attributes:
-      baseline:
-        Severity: None
-        Comment:
-      production:
+      general:
         Severity: Warning
-        Comment:
 ```
 
 ## What's the Point?

src/LegacySupport/README.md

@@ -1,7 +1,7 @@
 # About this Folder
 
 This folder contains a bunch of sources copied from newer versions of .NET which we pull in to
-R9 sources as necessary. This enables us to compile source code that depends on these newer
+our sources as necessary. This enables us to compile source code that depends on these newer
 features from .NET even when targeting older frameworks.
 
 Please see the `eng/MSBuild/LegacySupport.props` file for the set of project properties that control importing

src/Libraries/Microsoft.Extensions.Telemetry.Testing/Logging/FakeLogRecord.cs

@@ -64,7 +64,7 @@ public FakeLogRecord(LogLevel level, EventId id, object? state, Exception? excep
     ///
     /// The object returned by this property is the same as what <see cref="State"/> returns, except it has been cast to a read-only list.
     /// </remarks>
-    /// <exception cref="InvalidCastException">The state object was not generated by the R9 logging model and is not a read-only list.</exception>
+    /// <exception cref="InvalidCastException">The state object is not compatible with supported logging model and is not a read-only list.</exception>
     public IReadOnlyList<KeyValuePair<string, string?>>? StructuredState => (IReadOnlyList<KeyValuePair<string, string?>>?)State;
 
     /// <summary>

src/Libraries/Microsoft.Extensions.Telemetry/Metering.Collectors.EventCounters/EventCountersCollectorOptions.cs

@@ -54,7 +54,6 @@ public class EventCountersCollectorOptions
     /// </value>
     /// <remarks>
     /// Includes the recommended default event counters in addition to the counters specified in <see cref="Counters"/>.
-    /// See the list of recommended default counters in <see href="https://eng.ms/docs/experiences-devices/r9-sdk/docs/telemetry/metering/event-counters"/>.
     /// EventSource: "System.Runtime", Counters:
     ///   - "cpu-usage", "working-set", "time-in-gc", "alloc-rate", "exception-count", "gen-2-gc-count", "gen-2-size",
     ///   - "monitor-lock-contention-count", "active-timer-count", "threadpool-queue-length", "threadpool-thread-count",

test/Libraries/Microsoft.Extensions.Telemetry.Testing.Tests/Logging/FakeLoggerExtensionsTests.cs

@@ -23,7 +23,7 @@ public void Basic()
         var factory = serviceProvider.GetService<ILoggerFactory>();
         var collector = serviceProvider.GetFakeLogCollector();
 
-        var logger = factory!.CreateLogger("R9");
+        var logger = factory!.CreateLogger("DOT-NET");
         Assert.Equal(0, collector.Count);
         logger.LogError("M1");
         Assert.Equal(1, collector.Count);

test/Libraries/Microsoft.Extensions.Telemetry.Tests/Metering/OTelMeteringExtensionsTests.cs

@@ -204,7 +204,7 @@ public async Task AddMetering_MeterStateOverrides_WithOverlappingMatches_Applies
         jsonConfigRoot.Bind("MeteringWithOverrides", meteringOptions);
         configurationSection.Value = JsonConvert.SerializeObject(meteringOptions);
 
-        using var exporter = new TestExporter("R9.Test");
+        using var exporter = new TestExporter("DotNet.Test");
         using var reader = new BaseExportingMetricReader(exporter);
 
         using var host = await FakeHost.CreateBuilder()
@@ -216,23 +216,23 @@ public async Task AddMetering_MeterStateOverrides_WithOverlappingMatches_Applies
                 }))
             .StartAsync();
 
-        var meterNameR9Test = $"R9.Test{DateTime.Now.Ticks}";
+        var meterNameR9Test = $"DotNet.Test{DateTime.Now.Ticks}";
         using var meter1 = new Meter(meterNameR9Test);
         var counter1 = meter1.CreateCounter<long>("meter1_counter1");
         counter1.Add(5);
         reader.Collect();
         Assert.Equal(0, exporter.Metrics.Count);
         Assert.False(IsMetricAvailable(exporter.Metrics, meterNameR9Test, "meter1_counter1"));
 
-        var meterNameR9TestInternal = $"R9.Test.Internal{DateTime.Now.Ticks}";
+        var meterNameR9TestInternal = $"DotNet.Test.Internal{DateTime.Now.Ticks}";
         using var meter2 = new Meter(meterNameR9TestInternal);
         var counter2 = meter2.CreateCounter<long>("meter2_counter2");
         counter2.Add(16);
         reader.Collect();
         Assert.True(IsMetricAvailable(exporter.Metrics, meterNameR9TestInternal, "meter2_counter2"));
         Assert.Equal(16, exporter.FirstMetricPoint().GetSumLong());
 
-        var meterNameR9TestExternal = $"R9.Test.External{DateTime.Now.Ticks}";
+        var meterNameR9TestExternal = $"DotNet.Test.External{DateTime.Now.Ticks}";
         using var meter3 = new Meter(meterNameR9TestExternal);
         var counter3 = meter3.CreateCounter<long>("meter3_counter3");
         counter2.Add(8);
@@ -375,7 +375,7 @@ public async Task LongCounter_SumAsExpected()
     [Fact(Skip = "Flaky")]
     public async Task EmitMetric_DoesNotThrowAsync()
     {
-        var meterName1 = $"Microsoft.R9.Extensions.Meter1{DateTime.Now.Ticks}";
+        var meterName1 = $"Microsoft.Extensions.Meter1{DateTime.Now.Ticks}";
         var meterName2 = $"Meter2{DateTime.Now.Ticks}";
 
         using var exporter = new TestExporter(meterName1, meterName2);
@@ -388,7 +388,7 @@ public async Task EmitMetric_DoesNotThrowAsync()
                     builder.AddMetering(option =>
                     {
                         option.MeterState = MeteringState.Disabled;
-                        option.MeterStateOverrides.Add(new KeyValuePair<string, MeteringState>("Microsoft.R9.Extensions", MeteringState.Enabled));
+                        option.MeterStateOverrides.Add(new KeyValuePair<string, MeteringState>("Microsoft.Extensions", MeteringState.Enabled));
                     })
                     .AddTestExporter(reader);
                 }))

test/Libraries/Microsoft.Extensions.Telemetry.Tests/Telemetry.Internal/TestEventSource.cs

@@ -5,7 +5,7 @@
 
 namespace Microsoft.Extensions.Telemetry.Internal.Test;
 
-[EventSource(Name = "R9-SelfDiagnostics-Test")]
+[EventSource(Name = "DotNet-SelfDiagnostics-Test")]
 internal sealed class TestEventSource : EventSource
 {
     public const string WarningMessageText = "This is a warning event.";

test/Libraries/Microsoft.Extensions.Telemetry.Tests/appsettings.json

@@ -6,9 +6,9 @@
     "MeterState": "Enabled",
     "MeterStateOverrides": {
       "testMeter2": "Disabled",
-      "R9.Test": "Disabled",
-      "R9.Test.Internal": "Enabled",
-      "R9.Test.External": "Disabled"
+      "DotNet.Test": "Disabled",
+      "DotNet.Test.Internal": "Enabled",
+      "DotNet.Test.External": "Disabled"
       }
   },
   "MeteringWithOverridesWithEmptyOverride": {