Adding release notes

Author: AarDavMax

articles/azure-monitor/app/asp-net-core.md

@@ -751,6 +751,12 @@ This SDK requires `HttpContext`. It doesn't work in any non-HTTP applications, i
 
 For the latest updates and bug fixes, see the [release notes](./release-notes.md).
 
+## Release Notes
+
+For version 2.12 and newer: [.NET SDKs (Including ASP.NET, ASP.NET Core, and Logging Adapters)](https://github.com/Microsoft/ApplicationInsights-dotnet/releases) 
+
+Our [Service Updates](https://azure.microsoft.com/updates/?service=application-insights) also summarize major Application Insights improvements.
+
 ## Next steps
 
 * [Explore user flows](./usage-flows.md) to understand how users move through your app.

articles/azure-monitor/app/asp-net.md

@@ -377,6 +377,12 @@ There's a known issue in the current version of Visual Studio 2019: storing the
 
 For the latest updates and bug fixes, [consult the release notes](./release-notes.md).
 
+## Release Notes
+
+For version 2.12 and newer: [.NET SDKs (Including ASP.NET, ASP.NET Core, and Logging Adapters)](https://github.com/Microsoft/ApplicationInsights-dotnet/releases) 
+
+Our [Service Updates](https://azure.microsoft.com/updates/?service=application-insights) also summarize major Application Insights improvements.
+
 ## Next steps
 
 * Add synthetic transactions to test that your website is available from all over the world with [availability monitoring](availability-overview.md).

articles/azure-monitor/app/opencensus-python.md

@@ -541,6 +541,12 @@ For more information about how to use queries and logs, see [Logs in Azure Monit
 
 [!INCLUDE [azure-monitor-app-insights-test-connectivity](../../../includes/azure-monitor-app-insights-test-connectivity.md)]
 
+## Release Notes
+
+For the latest release notes, see [Python Azure Monitor Exporter](https://github.com/census-instrumentation/opencensus-python/blob/master/contrib/opencensus-ext-azure/CHANGELOG.md)
+
+Our [Service Updates](https://azure.microsoft.com/updates/?service=application-insights) also summarize major Application Insights improvements.
+
 ## Next steps
 
 * [Tracking incoming requests](./opencensus-python-dependency.md)