ci.jenkins.io switching to Windows 2025 agents by default

[Hervé]

Hello!

We're switching ci.jenkins.io Windows VM agent templates from Windows 2019 to Windows 2025 in about one hour today (2026-01-22).

Concerned labels

In order of frequency, here are the usually requested agent labels for Windows builds in Jenkins ecosystem that will be using Windows 2025 agents:

buildPlugin:

• docker-windows
• maven-17-windows
• maven-21-windows
• maven-25-windows
• maven-17-windows-nonspot
• maven-21-windows-nonspot
• maven-25-windows-nonspot

Core:

• maven-17-windows
• maven-21-windows
• maven-25-windows
• maven-17-windows-nonspot
• maven-21-windows-nonspot
• maven-25-windows-nonspot

For the record, currently neither of those projects have Windows builds: ATH, BOM, UC.

If you have any issue or observation, or for more details: https://github.com/jenkins-infra/helpdesk/issues/4955

Kind regards,

Hervé

[Hervé]

Switch completed!