diff --git a/src/libraries/Microsoft.Extensions.Caching.Memory/ref/Microsoft.Extensions.Caching.Memory.cs b/src/libraries/Microsoft.Extensions.Caching.Memory/ref/Microsoft.Extensions.Caching.Memory.cs
index e7b28d2bc65e6e..e61a5b0be20ba9 100644
--- a/src/libraries/Microsoft.Extensions.Caching.Memory/ref/Microsoft.Extensions.Caching.Memory.cs
+++ b/src/libraries/Microsoft.Extensions.Caching.Memory/ref/Microsoft.Extensions.Caching.Memory.cs
@@ -27,6 +27,7 @@ public partial class MemoryCache : Microsoft.Extensions.Caching.Memory.IMemoryCa
         public MemoryCache(Microsoft.Extensions.Options.IOptions<Microsoft.Extensions.Caching.Memory.MemoryCacheOptions> optionsAccessor) { }
         public MemoryCache(Microsoft.Extensions.Options.IOptions<Microsoft.Extensions.Caching.Memory.MemoryCacheOptions> optionsAccessor, Microsoft.Extensions.Logging.ILoggerFactory loggerFactory) { }
         public int Count { get { throw null; } }
+        public void Clear() { }
         public void Compact(double percentage) { }
         public Microsoft.Extensions.Caching.Memory.ICacheEntry CreateEntry(object key) { throw null; }
         public void Dispose() { }
@@ -34,7 +35,6 @@ protected virtual void Dispose(bool disposing) { }
         ~MemoryCache() { }
         public void Remove(object key) { }
         public bool TryGetValue(object key, out object? result) { throw null; }
-        public void Clear() { }
     }
     public partial class MemoryCacheOptions : Microsoft.Extensions.Options.IOptions<Microsoft.Extensions.Caching.Memory.MemoryCacheOptions>
     {
diff --git a/src/libraries/Microsoft.Extensions.Configuration.Binder/ref/Microsoft.Extensions.Configuration.Binder.cs b/src/libraries/Microsoft.Extensions.Configuration.Binder/ref/Microsoft.Extensions.Configuration.Binder.cs
index efcb740d6663b8..d42ef6222df5f1 100644
--- a/src/libraries/Microsoft.Extensions.Configuration.Binder/ref/Microsoft.Extensions.Configuration.Binder.cs
+++ b/src/libraries/Microsoft.Extensions.Configuration.Binder/ref/Microsoft.Extensions.Configuration.Binder.cs
@@ -27,7 +27,7 @@ public static void Bind(this Microsoft.Extensions.Configuration.IConfiguration c
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("In case the type is non-primitive, the trimmer cannot statically analyze the object's type so its members may be trimmed.")]
         public static object? GetValue(this Microsoft.Extensions.Configuration.IConfiguration configuration, [System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.All)] System.Type type, string key) { throw null; }
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("In case the type is non-primitive, the trimmer cannot statically analyze the object's type so its members may be trimmed.")]
-        public static object? GetValue(this Microsoft.Extensions.Configuration.IConfiguration configuration, [System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.All)] System.Type type, string key, object defaultValue) { throw null; }
+        public static object? GetValue(this Microsoft.Extensions.Configuration.IConfiguration configuration, [System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.All)] System.Type type, string key, object? defaultValue) { throw null; }
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("In case the type is non-primitive, the trimmer cannot statically analyze the object's type so its members may be trimmed.")]
         public static T? GetValue<[System.Diagnostics.CodeAnalysis.DynamicallyAccessedMembersAttribute(System.Diagnostics.CodeAnalysis.DynamicallyAccessedMemberTypes.All)] T>(this Microsoft.Extensions.Configuration.IConfiguration configuration, string key) { throw null; }
         [System.Diagnostics.CodeAnalysis.RequiresUnreferencedCodeAttribute("In case the type is non-primitive, the trimmer cannot statically analyze the object's type so its members may be trimmed.")]
diff --git a/src/libraries/Microsoft.Extensions.Primitives/ref/Microsoft.Extensions.Primitives.cs b/src/libraries/Microsoft.Extensions.Primitives/ref/Microsoft.Extensions.Primitives.cs
index afa9bc38731173..5811822286a001 100644
--- a/src/libraries/Microsoft.Extensions.Primitives/ref/Microsoft.Extensions.Primitives.cs
+++ b/src/libraries/Microsoft.Extensions.Primitives/ref/Microsoft.Extensions.Primitives.cs
@@ -180,7 +180,7 @@ public partial struct Enumerator : System.Collections.Generic.IEnumerator<string
             private int _dummyPrimitive;
             public Enumerator(ref Microsoft.Extensions.Primitives.StringValues values) { throw null; }
             public string? Current { get { throw null; } }
-            object System.Collections.IEnumerator.Current { get { throw null; } }
+            object? System.Collections.IEnumerator.Current { get { throw null; } }
             public void Dispose() { }
             public bool MoveNext() { throw null; }
             void System.Collections.IEnumerator.Reset() { }
diff --git a/src/libraries/Microsoft.Extensions.Primitives/src/StringValues.cs b/src/libraries/Microsoft.Extensions.Primitives/src/StringValues.cs
index 029b6922965fd4..f50fa8292c8361 100644
--- a/src/libraries/Microsoft.Extensions.Primitives/src/StringValues.cs
+++ b/src/libraries/Microsoft.Extensions.Primitives/src/StringValues.cs
@@ -638,7 +638,7 @@ public static bool Equals(StringValues left, StringValues right)
         /// <param name="left">The <see cref="string"/> to compare.</param>
         /// <param name="right">The <see cref="StringValues"/> to compare.</param>
         /// <returns><c>true</c> if the value of <paramref name="left"/> is different to the value of <paramref name="right"/>; otherwise, <c>false</c>.</returns>
-        public static bool operator !=(string left, StringValues right) => !Equals(new StringValues(left), right);
+        public static bool operator !=(string? left, StringValues right) => !Equals(new StringValues(left), right);
 
         /// <inheritdoc cref="Equals(StringValues, string[])" />
         public static bool operator ==(StringValues left, string?[]? right) => Equals(left, new StringValues(right));