Merge pull request #43143 from dotnet/MihaZupan-patch-1

Update ServicePointManager obsoletion docs

Author: MihaZupan

docs/fundamentals/syslib-diagnostics/syslib0014.md

@@ -14,13 +14,19 @@ The following APIs are marked as obsolete, starting in .NET 6. Using them in cod
 - <xref:System.Net.WebRequest.CreateHttp%2A?displayProperty=fullName>
 - <xref:System.Net.WebRequest.CreateDefault(System.Uri)?displayProperty=fullName>
 - <xref:System.Net.HttpWebRequest.%23ctor(System.Runtime.Serialization.SerializationInfo,System.Runtime.Serialization.StreamingContext)>
-- <xref:System.Net.ServicePointManager.FindServicePoint%2A?displayProperty=fullName>
+- <xref:System.Net.ServicePointManager>
 - <xref:System.Net.WebClient.%23ctor>
 
+To reduce the number of analyzer warnings, the <xref:System.Net.ServicePoint> class is not marked as obsolete, but all ways of obtaining its instances are.
+
+Settings on <xref:System.Net.ServicePointManager> and <xref:System.Net.ServicePoint> no longer affect <xref:System.Net.Security.SslStream> or <xref:System.Net.Http.HttpClient>.
+
 ## Workarounds
 
 Use <xref:System.Net.Http.HttpClient> instead.
 
+See the [HttpWebRequest to HttpClient migration guide](https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-migrate-from-httpwebrequest) for more info.
+
 ## Suppress a warning
 
 If you must use the obsolete APIs, you can suppress the warning in code or in your project file.