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Azure Functions runtime 3.0 is now generally available

Published date: January 23, 2020

Azure Functions 3.0 is now generally available, so it’s now possible to build and deploy functions with the 3.0 runtime version in production. This new version of the Functions runtime brings new capabilities including the ability to target .NET Core 3.1 and Node 12. It’s also highly backwards compatible, so most existing apps running on older language versions should be able to upgrade to the 3.0 version and run on it without any code changes. Running on this new version of the runtime in production will receive support for those apps. For details on creating or migrating to this production-ready 3.0 version, read the Azure Functions documentation.

Applications running on earlier versions of the Azure Functions runtime will continue to be supported and we’re not deprecating either 1.0 or 2.0 at this time. Customers running Azure Functions targeting 1.0 or 2.0 will also continue to receive security updates and patches moving forward—to both the Azure Functions runtime and the underlying .NET runtime—for apps running in Azure. Whenever there’s a major version deprecation, we plan to provide notice at least a year in advance for users to migrate their apps to a newer version.

Finally, thank you for your engagement during the 3.0 preview. The feedback received from the high level of engagement has enabled us to reach this milestone together. We look forward to announcing more exciting updates to Azure Functions and serverless for years to come.

For any issue encountered while updating your apps to 3.0, please open an issue on our GitHub repo.

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