GitHub Actions: The Ubuntu 18.04 Actions runner image is being deprecated and will be removed by 12/1/22

The Ubuntu 18.04 Actions runner image started our deprecation process on 8/8/22 and will be fully unsupported by 12/1/22. To raise awareness of the upcoming removal, jobs using Ubuntu 18.04 will temporarily fail during scheduled time periods defined below:

• October 3, 12:00 UTC – October 3, 14:00 UTC
• October 18, 14:00 UTC – October 18, 16:00 UTC
• November 15, 18:00 UTC – November 15, 20:00 UTC
• November 30, 20:00 UTC – November 30, 22:00 UTC
• December 15, 20:00 UTC – December 16 00:00 UTC
• January 5, 10.00 UTC – January 5, 14.00 UTC
• January 13, 12.00 UTC – January 13, 16.00 UTC
• January 18, 14.00 UTC – January 18, 18.00 UTC
• January 24, 16.00 UTC – January 24, 20.00 UTC
• February 7, 16.00 UTC – February 7, 22.00 UTC
• February 21, 10.00 UTC – February 21, 22.00 UTC
• March 6, 00.00 UTC – March 7, 00.00 UTC
• March 13, 00.00 UTC – March 14, 00.00 UTC
• March 21, 00.00 UTC – March 22, 00.00 UTC
• March 28, 00.00 UTC – March 29, 00.00 UTC

What you need to do

Workflows using the ubuntu-18.04 YAML workflow label should be updated to ubuntu-20.04, ubuntu-22.04, or ubuntu-latest. You can always get up-to-date information on our tools by reading about the software in GitHub Actions virtual environments. Please contact GitHub Support.

*update: we extended the deprecation schedule until April 2023 with updated dates for brownouts.