.NET Core October 2018 Update – NET Core 2.1.5 & SDK 2.1.403

Lee Coward

.NET Core October 2018 Update

Today, we are releasing the .NET Core October 2018 Update. This update includes .NET Core 2.1.5 and .NET Core SDK 2.1.403 and contains important reliability fixes.

Getting the Update

The latest .NET Core updates are available on the .NET Core download page. This update will be included in the Visual Studio 15.8.7 update, which will be coming later this month.

See the .NET Core 2.1.5 release notes for details on the release including a detailed commit list.

Docker Images

.NET Docker images have been updated for today’s release. The following repos have been updated.

Note: Look at the “Tags” view in each repository to see the updated Docker image tags.

Note: You must re-pull base images in order to get updates. The Docker client does not pull updates automatically.

Lifecycle Updates

The end of life schedule for .NET Core 2.0 was updated and announced in June and that day has arrived. .NET Core 2.0 was released August 14, 2017 and really began to open the path to the capabilities envisioned for .NET Core. Instructions for upgrading from .NET Core 2.0 to .NET Core 2.1 can be found in the following documents:

.NET Core 2.1 has been declared the long-term support (LTS) release. We recommend that you make .NET Core 2.1 your new standard for .NET Core development.

Azure App Services

Deployment of .NET Core 2.1.5 to Azure App Services has begun and the West Central US region will be live this morning. Remaining regions will be updated over the next few days.

App Services and end of life .NET Core versions

We are working through a maintenance plan for the versions of .NET Core and the .NET Core SDK which will be available on Azure App Services. Currently the available versions include some which are quite old and need to be removed. The essential idea will be to keep the latest patch version of in-support version channels (eg 1.0, 2.1, etc). Because the SDK is capable of building applications for any version of the runtime, only the latest will be retained.

.NET Core 2.0 reached end of life on October 1, 2018 and is no longer eligible for support or updates which means that it should be removed from App Services. However, we understand that many applications on App Services use 2.0 and removing it from the service too quickly would be disruptive. To give ample opportunity to migrate applications, we are going to ‘attach’ the 2.0 App Services maintenance to the .NET Core 1.0 and 1.1 end of life schedule, which concludes June 27, 2019 per the .NET Core Support Policy. After that date, .NET Core 1.0, 1.1 and 2.0 will be removed from Azure App Services.

Previous .NET Core Updates

The last few .NET Core updates follow:

September 2018 Update August 2018 Update July 2018 Update June 2018 Update May 2018 Update


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