From 6b8d95a3a0054bf99375b0bb3de3d6d92835f1b5 Mon Sep 17 00:00:00 2001
From: Bartosz Klonowski <Bartosz-Klonowski@tlen.pl>
Date: Sat, 10 Aug 2024 22:29:39 +0200
Subject: [PATCH 1/2] Add the section to CS0809 about methods recognized as
 obsolete

---
 docs/csharp/misc/cs0809.md | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/docs/csharp/misc/cs0809.md b/docs/csharp/misc/cs0809.md
index e2c10d0f872f5..cc5c3d59453da 100644
--- a/docs/csharp/misc/cs0809.md
+++ b/docs/csharp/misc/cs0809.md
@@ -36,3 +36,32 @@ public class C : Base
     }
 }
 ```
+
+## Methods recognized as obsolete
+
+Note that the compiler warning `CS0809` will lead to no [`CS0618`](../language-reference/compiler-messages/cs0618.md) warning when actually calling the obsolete method.
+<br/>In the following example compiler will not warn about the method `Test` being obsolete, because the declaration that is recognized by compiler when calling is in the base class `Base`, not the derived class `Derived`:
+
+```csharp
+class Base
+{
+    public virtual void Test() {}
+}
+
+class Derived : Base
+{
+    [System.Obsolete()]
+    public override void Test() { }
+}
+
+static class Program
+{
+    public static void Main()
+    {
+        Derived derived = new();
+        b.Foo();    // No CS0618
+    }
+}
+```
+
+To fix this add the `Obsolete` attribute to base class as well.

From e4851058854fafabca55d998a37365a38211ed57 Mon Sep 17 00:00:00 2001
From: Bartosz Klonowski <Bartosz-Klonowski@tlen.pl>
Date: Sat, 10 Aug 2024 22:33:37 +0200
Subject: [PATCH 2/2] Add the 'See also' section to link other, related,
 warnings

---
 docs/csharp/misc/cs0809.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/docs/csharp/misc/cs0809.md b/docs/csharp/misc/cs0809.md
index cc5c3d59453da..4d2530bcb074f 100644
--- a/docs/csharp/misc/cs0809.md
+++ b/docs/csharp/misc/cs0809.md
@@ -65,3 +65,8 @@ static class Program
 ```
 
 To fix this add the `Obsolete` attribute to base class as well.
+
+## See also
+
+- [CS0618](../language-reference/compiler-messages/cs0618.md)
+- [CS0672](./cs0672.md)