Update release notes.

.github/workflows/ReleaseNotes.md

@@ -1,4 +1,5 @@
 * [Core] Updated nuget packages.
+* [Core] The option _IgnoreCertificateChainErrors_ is now respected (thanks to @GodVenn, #1447).
 * [ManagedClient] The managed client now sends the entire topic filter including new MQTTv5 properties when subscribing.
 * [Server] Fixed reporting of _MaximumQoS_ in _ConnAck_ packet (MQTTv5 only) (#1442).
 * [Server] Fix cross thread issue in session message storage for QoS 1 and 2.

Source/MQTTnet/Implementations/MqttTcpChannel.cs

@@ -275,7 +275,9 @@ namespace MQTTnet.Implementations
             }
 
             if (_tcpOptions?.TlsOptions?.IgnoreCertificateChainErrors ?? false)
+            {
                 sslPolicyErrors &= ~SslPolicyErrors.RemoteCertificateChainErrors;
+            }
 
             return sslPolicyErrors == SslPolicyErrors.None;
         }