refactor: emit status function (#267)

* refactor: emit status function, to avoid concurrent modifictaion error issue

* PubNub SDK v8.0.3 release.

---------

Co-authored-by: Mohit Tejani <[email protected]>
Co-authored-by: PubNub Release Bot <[email protected]>

Author: 3 people

.pubnub.yml

@@ -1,8 +1,13 @@
 name: c-sharp
-version: "8.0.2"
+version: "8.0.3"
 schema: 1
 scm: github.com/pubnub/c-sharp
 changelog:
+  - date: 2025-11-20
+    version: v8.0.3
+    changes:
+      - type: improvement
+        text: "Refactor EmitStatus to prevent concurrent modification issue resulting InvalidOperationException."
   - date: 2025-11-17
     version: v8.0.2
     changes:
@@ -962,7 +967,7 @@ features:
     - QUERY-PARAM
 supported-platforms:
   -
-    version: Pubnub 'C#' 8.0.2
+    version: Pubnub 'C#' 8.0.3
     platforms:
       - Windows 10 and up
       - Windows Server 2008 and up
@@ -973,7 +978,7 @@ supported-platforms:
       - .Net Framework 4.6.1+
       - .Net Framework 6.0
   -
-    version: PubnubPCL 'C#' 8.0.2
+    version: PubnubPCL 'C#' 8.0.3
     platforms:
       - Xamarin.Android
       - Xamarin.iOS
@@ -993,7 +998,7 @@ supported-platforms:
       - .Net Core
       - .Net 6.0
   -
-    version: PubnubUWP 'C#' 8.0.2
+    version: PubnubUWP 'C#' 8.0.3
     platforms:
       - Windows Phone 10
       - Universal Windows Apps
@@ -1017,7 +1022,7 @@ sdks:
             distribution-type: source
             distribution-repository: GitHub
             package-name: Pubnub
-            location: https://github.com/pubnub/c-sharp/releases/tag/v8.0.2
+            location: https://github.com/pubnub/c-sharp/releases/tag/v8.0.3
             requires:
               -
                 name: ".Net"
@@ -1300,7 +1305,7 @@ sdks:
             distribution-type: source
             distribution-repository: GitHub
             package-name: PubNubPCL
-            location: https://github.com/pubnub/c-sharp/releases/tag/v8.0.2
+            location: https://github.com/pubnub/c-sharp/releases/tag/v8.0.3
             requires:
               -
                 name: ".Net Core"
@@ -1659,7 +1664,7 @@ sdks:
             distribution-type: source
             distribution-repository: GitHub
             package-name: PubnubUWP
-            location: https://github.com/pubnub/c-sharp/releases/tag/v8.0.2
+            location: https://github.com/pubnub/c-sharp/releases/tag/v8.0.3
             requires:
               -
                 name: "Universal Windows Platform Development"

CHANGELOG

@@ -1,3 +1,7 @@
+v8.0.3 - November 20 2025
+-----------------------------
+- Modified: refactor EmitStatus to prevent concurrent modification issue resulting InvalidOperationException.
+
 v8.0.2 - November 17 2025
 -----------------------------
 - Fixed: fixes issue of subscription loop breaking when a listener callback throws exception.

src/Api/PubnubApi/EndPoint/PubSub/SubscribeEndpoint.cs

@@ -229,18 +229,24 @@ private void MessageEmitter<T>(Pubnub pubnubInstance, PNMessageResult<T> message
 
 		private void StatusEmitter(Pubnub pubnubInstance, PNStatus status)
         {
-            foreach (var listener in SubscribeListenerList)
+            try
             {
-                try
-                {
-                    listener?.Status(pubnubInstance, status);
-                }
-                catch (Exception ex)
+                foreach (var listener in SubscribeListenerList.ToArray())
                 {
-                    config.Logger?.Error($"error during event handler function, {ex.Message}");
+                    try
+                    {
+                        listener?.Status(pubnubInstance, status);
+                    }
+                    catch (Exception ex)
+                    {
+                        config.Logger?.Warn($"error in status event handler function, {ex.Message}");
+                    }
                 }
             }
+            catch (Exception ex)
+            {
+                config.Logger?.Warn($"Emit Status encounter error: {ex.Message}");
+            }
         }
-
 	}
 }

src/Api/PubnubApi/Properties/AssemblyInfo.cs

@@ -11,8 +11,8 @@
 [assembly: AssemblyProduct("Pubnub C# SDK")]
 [assembly: AssemblyCopyright("Copyright ©  2021")]
 [assembly: AssemblyTrademark("")]
-[assembly: AssemblyVersion("8.0.2")]
-[assembly: AssemblyFileVersion("8.0.2")]
+[assembly: AssemblyVersion("8.0.3")]
+[assembly: AssemblyFileVersion("8.0.3")]
 // Setting ComVisible to false makes the types in this assembly not visible
 // to COM components.  If you need to access a type in this assembly from
 // COM, set the ComVisible attribute to true on that type.

src/Api/PubnubApi/PubnubApi.csproj

@@ -14,15 +14,15 @@
 
   <PropertyGroup>
     <PackageId>Pubnub</PackageId>
-    <PackageVersion>8.0.2</PackageVersion>
+    <PackageVersion>8.0.3</PackageVersion>
     <Title>PubNub C# .NET - Web Data Push API</Title>
     <Authors>Pandu Masabathula</Authors>
     <Owners>PubNub</Owners>
     <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
     <PackageIconUrl>http://pubnub.s3.amazonaws.com/2011/powered-by-pubnub/pubnub-icon-600x600.png</PackageIconUrl>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <RepositoryUrl>https://github.com/pubnub/c-sharp/</RepositoryUrl>
-    <PackageReleaseNotes>Fixes issue of subscription loop breaking when a listener callback throws exception.</PackageReleaseNotes>
+    <PackageReleaseNotes>Refactor EmitStatus to prevent concurrent modification issue resulting InvalidOperationException.</PackageReleaseNotes>
     <PackageTags>Web Data Push Real-time Notifications ESB Message Broadcasting Distributed Computing</PackageTags>
     <!--<Summary>PubNub is a Massively Scalable Web Push Service for Web and Mobile Games.  This is a cloud-based service for broadcasting messages to thousands of web and mobile clients simultaneously</Summary>-->
     <Description>PubNub is a Massively Scalable Web Push Service for Web and Mobile Games.  This is a cloud-based service for broadcasting messages to thousands of web and mobile clients simultaneously</Description>

src/Api/PubnubApiPCL/PubnubApiPCL.csproj

@@ -14,15 +14,15 @@
 
   <PropertyGroup>
     <PackageId>PubnubPCL</PackageId>
-    <PackageVersion>8.0.2</PackageVersion>
+    <PackageVersion>8.0.3</PackageVersion>
     <Title>PubNub C# .NET - Web Data Push API</Title>
     <Authors>Pandu Masabathula</Authors>
     <Owners>PubNub</Owners>
     <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
     <PackageIconUrl>http://pubnub.s3.amazonaws.com/2011/powered-by-pubnub/pubnub-icon-600x600.png</PackageIconUrl>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <RepositoryUrl>https://github.com/pubnub/c-sharp/</RepositoryUrl>
-    <PackageReleaseNotes>Fixes issue of subscription loop breaking when a listener callback throws exception.</PackageReleaseNotes>
+    <PackageReleaseNotes>Refactor EmitStatus to prevent concurrent modification issue resulting InvalidOperationException.</PackageReleaseNotes>
     <PackageTags>Web Data Push Real-time Notifications ESB Message Broadcasting Distributed Computing</PackageTags>
     <!--<Summary>PubNub is a Massively Scalable Web Push Service for Web and Mobile Games.  This is a cloud-based service for broadcasting messages to thousands of web and mobile clients simultaneously</Summary>-->
     <Description>PubNub is a Massively Scalable Web Push Service for Web and Mobile Games.  This is a cloud-based service for broadcasting messages to thousands of web and mobile clients simultaneously</Description>

src/Api/PubnubApiUWP/PubnubApiUWP.csproj

@@ -16,15 +16,15 @@
 
   <PropertyGroup>
     <PackageId>PubnubUWP</PackageId>
-    <PackageVersion>8.0.2</PackageVersion>
+    <PackageVersion>8.0.3</PackageVersion>
     <Title>PubNub C# .NET - Web Data Push API</Title>
     <Authors>Pandu Masabathula</Authors>
     <Owners>PubNub</Owners>
     <PackageLicenseFile>LICENSE.txt</PackageLicenseFile>
     <PackageIconUrl>http://pubnub.s3.amazonaws.com/2011/powered-by-pubnub/pubnub-icon-600x600.png</PackageIconUrl>
     <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
     <RepositoryUrl>https://github.com/pubnub/c-sharp/</RepositoryUrl>
-    <PackageReleaseNotes>Fixes issue of subscription loop breaking when a listener callback throws exception.</PackageReleaseNotes>
+    <PackageReleaseNotes>Refactor EmitStatus to prevent concurrent modification issue resulting InvalidOperationException.</PackageReleaseNotes>
     <PackageTags>Web Data Push Real-time Notifications ESB Message Broadcasting Distributed Computing</PackageTags>
     <!--<Summary>PubNub is a Massively Scalable Web Push Service for Web and Mobile Games.  This is a cloud-based service for broadcasting messages to thousands of web and mobile clients simultaneously</Summary>-->
     <Description>PubNub is a Massively Scalable Web Push Service for Web and Mobile Games.  This is a cloud-based service for broadcasting messages to thousands of web and mobile clients simultaneously</Description>

src/Api/PubnubApiUnity/PubnubApiUnity.csproj

@@ -15,7 +15,7 @@
 
   <PropertyGroup>
     <PackageId>PubnubApiUnity</PackageId>
-    <PackageVersion>8.0.2</PackageVersion>
+    <PackageVersion>8.0.3</PackageVersion>
     <Title>PubNub C# .NET - Web Data Push API</Title>
     <Authors>Pandu Masabathula</Authors>
     <Owners>PubNub</Owners>