Runtime support schedule
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This page provides key dates for App Engine flexible 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 Version |
End of support |
Deprecated |
Decommissioned |
| Go 1.26 |
Ubuntu 24.04 |
1.26 |
|
|
|
| Go 1.25 |
Ubuntu 22.04 |
1.25 |
|
|
|
| Go 1.24 |
Ubuntu 22.04 |
1.24 |
2027-03-02 |
2028-03-02 |
|
| Go 1.23 |
Ubuntu 22.04 |
1.23 |
2026-08-21 |
2027-08-21 |
|
| Go 1.22 |
Ubuntu 22.04 |
1.22 |
2026-07-28 |
2027-07-28 |
|
| Go 1.21 |
Ubuntu 22.04 |
1.21 |
2026-03-03 |
2027-03-03 |
|
| Go 1.20 |
Ubuntu 22.04 |
1.20 |
2024-03-27 |
2025-03-27 |
|
| Go 1.19 |
Ubuntu 22.04 |
1.19 |
2024-07-10 |
2025-07-10 |
|
| Go 1.18 |
Ubuntu 22.04 |
1.18 |
2024-07-10 |
2025-07-10 |
|
| Go 1.15 |
Distroless |
1.15 |
2024-07-10 |
2025-07-10 |
|
| Go 1.14 |
Distroless |
1.14 |
2024-07-10 |
2025-07-10 |
|
| Go 1.13 |
Distroless |
1.13 |
2024-07-10 |
2025-07-10 |
|
| Go 1.12 |
Distroless |
1.12 |
2024-07-10 |
2025-07-10 |
|
| Go 1.11 |
Distroless |
1.11 |
2024-07-10 |
2025-07-10 |
|
| Go 1.10 |
Distroless |
1.10 |
2024-07-10 |
2025-07-10 |
|
| Go 1.9 |
Distroless |
1.9 |
2024-07-10 |
2025-07-10 |
|
Java
| Runtime |
Environment |
Runtime Version |
End of support |
Deprecated |
Decommission |
| Java 25 |
Ubuntu 24.04 |
25 |
Oct 2031 |
|
|
| Java 21 |
Ubuntu 22.04 |
21 |
Sept 2031 |
|
|
| Java 17 |
Ubuntu 22.04 |
17 |
Oct 2027 |
|
|
| Java 11 |
Ubuntu 18.04 |
11 |
2024-10-31 |
2025-10-31 |
|
| Java 8 |
Debian 9 |
8 |
2024-07-10 |
2025-07-10 |
|
Node.js
| Runtime |
Environment |
Runtime Version |
End of support |
Deprecated |
Decommission |
| Node.js 26 (Preview) |
Ubuntu 24.04 |
26 |
|
|
|
| Node.js 24 |
Ubuntu 24.04 |
24 |
2028-04-30 |
2029-04-30 |
|
| Node.js 22 |
Ubuntu 22.04 |
22 |
2027-04-30 |
2028-04-30 |
|
| Node.js 20 |
Ubuntu 22.04 |
20 |
2026-04-30 |
2027-04-30 |
|
| Node.js 18 |
Ubuntu 22.04 |
18 |
2025-04-30 |
2026-04-30 |
|
| Node.js 16 |
Ubuntu 16.04 |
16 |
2024-07-10 |
2025-07-10 |
|
| Node.js 14 |
Ubuntu 16.04 |
14 |
2024-07-10 |
2025-07-10 |
|
| Node.js 12 |
Ubuntu 16.04 |
12 |
2024-07-10 |
2025-07-10 |
|
| Node.js 10 |
Ubuntu 16.04 |
10 |
2024-07-10 |
2025-07-10 |
|
| Node.js 8 |
Ubuntu 16.04 |
8 |
2024-07-10 |
2025-07-10 |
|
Python
| Runtime |
Environment |
Runtime Version |
End of support |
Deprecated |
Decommission |
| Python 3.14 |
Ubuntu 24.04 |
3.14 |
2030-10-10 |
2031-10-10 |
|
| Python 3.13 |
Ubuntu 22.04 |
3.13 |
2029-10-10 |
2030-10-10 |
|
| Python 3.12 |
Ubuntu 22.04 |
3.12 |
2028-10-02 |
2029-10-02 |
|
| Python 3.11 |
Ubuntu 22.04 |
3.11 |
2027-10-24 |
2028-10-24 |
|
| Python 3.10 |
Ubuntu 22.04 |
3.10 |
2026-10-04 |
2027-10-04 |
|
| Python 3.9 |
Ubuntu 18.04 |
3.9 |
2025-10-05 |
2026-10-05 |
|
| Python 3.8 |
Ubuntu 18.04 |
3.8 |
2024-10-14 |
2025-10-14 |
|
| Python 3.7 |
Ubuntu 16.04 |
3.7 |
2024-07-10 |
2025-07-10 |
|
| Python 3.6 |
Ubuntu 16.04 |
3.6 |
2024-07-10 |
2025-07-10 |
|
| Python 3.5 |
Ubuntu 16.04 |
3.5 |
2024-07-10 |
2025-07-10 |
|
| Python 3.4 |
Ubuntu 16.04 |
3.4 |
2024-07-10 |
2025-07-10 |
|
| Python 2.7 |
Ubuntu 16.04 |
2 |
2024-07-10 |
2025-07-10 |
|
PHP
| Runtime |
Environment |
Runtime Version |
End of support |
Deprecated |
Decommission |
| PHP 8.5 |
Ubuntu 24.04 |
8.5 |
2029-12-31 |
2030-12-31 |
|
| PHP 8.4 |
Ubuntu 22.04 |
8.4 |
2028-12-31 |
2029-12-31 |
|
| PHP 8.3 |
Ubuntu 22.04 |
8.3 |
2027-12-31 |
2028-12-31 |
|
| PHP 8.2 |
Ubuntu 22.04 |
8.2 |
2026-12-31 |
2027-12-31 |
|
| PHP 8.1 |
Ubuntu 18.04 |
8.1 |
2025-12-31 |
2026-12-31 |
|
| PHP 7.4 |
Ubuntu 18.04 |
7.4 |
2024-07-10 |
2025-07-10 |
|
| PHP 7.3 |
Ubuntu 16.04 |
7.3 |
2024-07-10 |
2025-07-10 |
|
| PHP 7.2 |
Ubuntu 16.04 |
7.2 |
2024-07-10 |
2025-07-10 |
|
Ruby
| Runtime |
Environment |
Runtime Version |
End of support |
Deprecated |
Decommission |
| Ruby 4.0 |
Ubuntu 24.04 |
4.0 |
2029-03-31 |
2030-03-31 |
|
| Ruby 3.4 |
Ubuntu 22.04 |
3.4 |
2028-03-31 |
2029-03-31 |
|
| Ruby 3.3 |
Ubuntu 22.04 |
3.3 |
2027-03-31 |
2028-03-31 |
|
| Ruby 3.2 |
Ubuntu 22.04 |
3.2 |
2026-03-31 |
2027-03-31 |
|
| Ruby 3.1 |
Ubuntu 16.04 |
3.1 |
2024-07-10 |
2025-07-10 |
|
| Ruby 3.0 |
Ubuntu 16.04 |
3.0 |
2024-07-10 |
2025-07-10 |
|
| Ruby 2.7 |
Ubuntu 16.04 |
2.7 |
2024-07-10 |
2025-07-10 |
|
| Ruby 2.6 |
Ubuntu 16.04 |
2.6 |
2024-07-10 |
2025-07-10 |
|
.NET
| Runtime |
Environment |
Runtime Version |
End of support |
Deprecated |
Decommission |
| .NET 10 |
Ubuntu 24.04 |
10 |
2028-11-14 |
2029-11-14 |
|
| .NET 8 |
Ubuntu 22.04 |
8 |
2026-11-10 |
2027-11-10 |
|
| .NET 6 |
Ubuntu 22.04 |
6 |
2024-11-12 |
2025-11-12 |
|
| .NET 3 |
Ubuntu 16.04 |
3 |
2024-07-10 |
2025-07-10 |
|
| .NET 2 |
Ubuntu 16.04 |
2 |
2024-07-10 |
2025-07-10 |
|
| .NET 1 |
Ubuntu 16.04 |
1 |
2024-07-10 |
2025-07-10 |
|
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2026-07-29 UTC.
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