Runtime support schedule

This page provides key dates for App Engine standard environment language runtimes as described in the Runtime lifecycle page.

Based on qualification and stability of releases, availability and key dates might be delayed. Revisit this page to stay up to date.

Go

Runtime Environment Runtime ID End of support Deprecated Decommission
Go 1.22 Ubuntu 22.04 go122
Go 1.21 Ubuntu 22.04 go121
Go 1.20 Ubuntu 22.04 go120 2024-11-01 2025-11-01
Go 1.19 Ubuntu 22.04 go119 2024-04-30 2025-04-30
Go 1.18 Ubuntu 22.04 go118 2024-01-30 2025-01-31
Go 1.16 Ubuntu 18.04 go116 2024-01-30 2025-01-31
Go 1.15 Ubuntu 18.04 go115 2024-01-30 2025-01-31
Go 1.14 Ubuntu 18.04 go114 2024-01-30 2025-01-31
Go 1.13 Ubuntu 18.04 go113 2024-01-30 2025-01-31
Go 1.12 Ubuntu 18.04 go112 2024-01-30 2025-01-31
Go 1.11 Ubuntu 18.04 (App Engine first-generation) go111 2024-01-30 2026-01-31

Java

Runtime Environment Runtime ID End of support Deprecated Decommission
Java 21 Ubuntu 22.04 java21 Oct 2031
Java 17 Ubuntu 22.04 java17 Oct 2027
Java 11 Ubuntu 18.04 java11 2024-10-31 2025-10-31
Java 8 App Engine first-generation java8 2024-01-311 2026-01-31

Node.js

Runtime Environment Runtime ID End of support Deprecated Decommission
Node.js 20 Ubuntu 22.04 nodejs20 2026-04-30 2027-04-30
Node.js 18 Ubuntu 22.04 nodejs18 2025-04-30 2026-04-30
Node.js 16 Ubuntu 18.04 nodejs16 2024-01-30 2025-01-31
Node.js 14 Ubuntu 18.04 nodejs14 2024-01-30 2025-01-31
Node.js 12 Ubuntu 18.04 nodejs12 2024-01-30 2025-01-31
Node.js 10 Ubuntu 18.04 nodejs10 2024-01-30 2025-01-31
Node.js 8 Ubuntu 18.04 nodejs8 2018-06-27 2019-10-01

Python

Runtime Environment Runtime ID End of support Deprecated Decommission
Python 3.12 Ubuntu 22.04 python312 2028-10-02 2029-10-02
Python 3.11 Ubuntu 22.04 python311 2027-10-24 2028-10-24
Python 3.10 Ubuntu 22.04 python310 2026-10-04 2027-10-01
Python 3.9 Ubuntu 18.04 python39 2025-10-05 2026-10-01
Python 3.8 Ubuntu 18.04 python38 2024-10-14 2025-10-01
Python 3.7 Ubuntu 18.04 python37 2024-01-30 2025-01-31
Python 2.7 App Engine first-generation python27 2024-01-311 2026-01-31

PHP

Runtime Environment Runtime ID End of support Deprecated Decommission
PHP 8.3 Ubuntu 22.04 php83 2027-12-31 2028-12-31
PHP 8.2 Ubuntu 22.04 php82 2026-12-31 2027-12-31
PHP 8.1 Ubuntu 18.04 php81 2025-12-31 2026-12-31
PHP 7.4 Ubuntu 18.04 php74 2024-01-30 2025-01-31
PHP 7.3 Ubuntu 18.04 php73 2024-01-30 2025-01-31
PHP 7.2 Ubuntu 18.04 php72 2024-01-30 2025-01-31
PHP 5.5 App Engine first-generation php55 2024-01-301 2026-01-31

Ruby

Runtime Environment Runtime ID End of support Deprecated Decommission
Ruby 3.3 Ubuntu 22.04 ruby33 2027-03-31 2028-03-31
Ruby 3.2 Ubuntu 22.04 ruby32 2026-03-31 2027-03-31
Ruby 3.0 Ubuntu 18.04 ruby30 2024-03-31 2025-03-31
Ruby 2.7 Ubuntu 18.04 ruby27 2024-01-30 2025-01-31
Ruby 2.6 Ubuntu 18.04 ruby26 2024-01-30 2025-01-31
Ruby 2.5 Ubuntu 18.04 ruby25 2024-01-30 2025-01-31

  1. Deployments for legacy runtimes can be re-enabled using an organization policy