AWS Lambda
Developer Guide

Runtime Support Policy

AWS Lambda runtimes are built around a combination of operating system, programming language, and software libraries that are subject to maintenance and security updates. When a component of a runtime is no longer supported for security updates, Lambda deprecates the runtime.

Deprecation occurs in two phases. During the first phase, you can no longer create functions that use the deprecated runtime. For at least 30 days, you can continue to update existing functions that use the deprecated runtime. After this period, both function creation and updates are disabled permanently. However, the function continues to be available to process invocation events.

The following runtimes have been scheduled to be deprecated.

Deprecation Schedule

Name Identifier End of Life Deprecation (Create) Deprecation (Update)

Node.js 0.10

nodejs

October 31, 2016

October 31, 2016

October 31, 2016

Node.js 4.3

nodejs4.3

nodejs4.3-edge

April 30, 2018

December 15, 2018

April 30, 2019

Node.js 6.10

nodejs6.10

April 30, 2019

April 30, 2019

August 12, 2019

.NET Core 2.0

dotnetcore2.0

April 30, 2019

April 30, 2019

May 30, 2019

.NET Core 1.0

dotnetcore1.0

June 27, 2019

June 27, 2019

July 31, 2019

Node.js 8.10

nodejs8.10

December 31, 2019

January 6, 2020

February 3, 2020

In most cases, the end-of-life date of a language version or operating system is known well in advance. If you have functions running on a runtime that will be deprecated in the next 60 days, Lambda notifies you by email that you should prepare by migrating your function to a supported runtime. In some cases, such as security issues that require a backwards-incompatible update, or software that doesn't support a long-term support (LTS) schedule, advance notice might not be possible.

Language and Framework Support Policies

After a runtime is deprecated, Lambda might retire it completely at any time by disabling invocation. Deprecated runtimes aren't eligible for security updates or technical support. Before retiring a runtime, Lambda sends additional notifications to affected customers. No runtimes are scheduled to be retired at this time.