From faf766a38ddfd395cd0c58d8ae1d6dedae4d25ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Wiesner?= <tomaswiesner@microsoft.com>
Date: Mon, 23 Feb 2026 16:23:17 +0100
Subject: [PATCH 1/2] baselines regenerated

---
 ...Microsoft.Extensions.Diagnostics.Testing.json | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Microsoft.Extensions.Diagnostics.Testing.json b/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Microsoft.Extensions.Diagnostics.Testing.json
index b2e7a70ed15..fc051ed5ffb 100644
--- a/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Microsoft.Extensions.Diagnostics.Testing.json
+++ b/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Microsoft.Extensions.Diagnostics.Testing.json
@@ -1,5 +1,5 @@
 {
-  "Name": "Microsoft.Extensions.Diagnostics.Testing, Version=8.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
+  "Name": "Microsoft.Extensions.Diagnostics.Testing, Version=10.4.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
   "Types": [
     {
       "Type": "sealed class Microsoft.Extensions.Diagnostics.Metrics.Testing.CollectedMeasurement<T> where T : struct",
@@ -57,6 +57,10 @@
           "Member": "static Microsoft.Extensions.Logging.Testing.FakeLogCollector Microsoft.Extensions.Logging.Testing.FakeLogCollector.Create(Microsoft.Extensions.Logging.Testing.FakeLogCollectorOptions options);",
           "Stage": "Stable"
         },
+        {
+          "Member": "System.Collections.Generic.IAsyncEnumerable<Microsoft.Extensions.Logging.Testing.FakeLogRecord> Microsoft.Extensions.Logging.Testing.FakeLogCollector.GetLogsAsync(System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken));",
+          "Stage": "Experimental"
+        },
         {
           "Member": "System.Collections.Generic.IReadOnlyList<Microsoft.Extensions.Logging.Testing.FakeLogRecord> Microsoft.Extensions.Logging.Testing.FakeLogCollector.GetSnapshot(bool clear = false);",
           "Stage": "Stable"
@@ -87,6 +91,10 @@
           "Member": "bool Microsoft.Extensions.Logging.Testing.FakeLogCollectorOptions.CollectRecordsForDisabledLogLevels { get; set; }",
           "Stage": "Stable"
         },
+        {
+          "Member": "System.Func<Microsoft.Extensions.Logging.Testing.FakeLogRecord, bool>? Microsoft.Extensions.Logging.Testing.FakeLogCollectorOptions.CustomFilter { get; set; }",
+          "Stage": "Experimental"
+        },
         {
           "Member": "System.Collections.Generic.ISet<string> Microsoft.Extensions.Logging.Testing.FakeLogCollectorOptions.FilteredCategories { get; set; }",
           "Stage": "Stable"
@@ -110,7 +118,7 @@
       ]
     },
     {
-      "Type": "class Microsoft.Extensions.Logging.Testing.FakeLogger : Microsoft.Extensions.Logging.ILogger",
+      "Type": "class Microsoft.Extensions.Logging.Testing.FakeLogger : Microsoft.Extensions.Logging.ILogger, Microsoft.Extensions.Logging.Abstractions.IBufferedLogger",
       "Stage": "Stable",
       "Methods": [
         {
@@ -136,6 +144,10 @@
         {
           "Member": "void Microsoft.Extensions.Logging.Testing.FakeLogger.Log<TState>(Microsoft.Extensions.Logging.LogLevel logLevel, Microsoft.Extensions.Logging.EventId eventId, TState state, System.Exception? exception, System.Func<TState, System.Exception?, string> formatter);",
           "Stage": "Stable"
+        },
+        {
+          "Member": "void Microsoft.Extensions.Logging.Testing.FakeLogger.LogRecords(System.Collections.Generic.IEnumerable<Microsoft.Extensions.Logging.Abstractions.BufferedLogRecord> records);",
+          "Stage": "Experimental"
         }
       ],
       "Properties": [

From aac82476cd0a389e04df9c8c50574ff1dc112e8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Wiesner?= <tomaswiesner@microsoft.com>
Date: Mon, 23 Feb 2026 17:52:52 +0100
Subject: [PATCH 2/2] explanation: baseline are not tfm-aware; baselines not
 target latest and warning is disabled using pragma to target specific place
 only for net8- tfms

---
 .../Logging/FakeLogger.cs                                   | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Logging/FakeLogger.cs b/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Logging/FakeLogger.cs
index 20b4fde8512..2ea70d56fb7 100644
--- a/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Logging/FakeLogger.cs
+++ b/src/Libraries/Microsoft.Extensions.Diagnostics.Testing/Logging/FakeLogger.cs
@@ -25,7 +25,9 @@ namespace Microsoft.Extensions.Logging.Testing;
 #if NET9_0_OR_GREATER
 public class FakeLogger : ILogger, IBufferedLogger
 #else
+#pragma warning disable LA0007
 public class FakeLogger : ILogger
+#pragma warning restore LA0007
 #endif
 {
     private readonly ConcurrentDictionary<LogLevel, bool> _disabledLevels = new();  // used as a set, the value is ignored
@@ -185,3 +187,7 @@ public void LogRecords(IEnumerable<BufferedLogRecord> records)
         }
     }
 }
+
+#if !NET9_0_OR_GREATER
+#pragma warning restore LA0007
+#endif