Missing oldest labels

[trittsv]

Description

Currently the problem is that once in a while i have to update runner labels because they get deprecated.

I always want to use the oldest runner available to ensure that my executable can run on most systems.
For example when i build a executable on ubuntu-18 then it also runs on ubuntu-24. But not vice versa because of glibc.
So it would be best to add labels ubuntu-oldest, windows-oldest, macos-oldest.

Platforms affected

• Azure DevOps
• GitHub Actions - Standard Runners
• GitHub Actions - Larger Runners

Runner images affected

• Ubuntu 22.04
• Ubuntu 24.04
• macOS 13
• macOS 13 Arm64
• macOS 14
• macOS 14 Arm64
• macOS 15
• macOS 15 Arm64
• Windows Server 2019
• Windows Server 2022
• Windows Server 2025

Image version and build link

https://dev.azure.com/eclipse-cyclonedds/cyclonedds-insight/_build/results?buildId=7223&view=results

Is it regression?

No

Expected behavior

There should be -oldest labels.

Actual behavior

Lots of time required to always update the labels when something get deprecated.

Repro steps

Always use the oldest labels and wait for a while.

[kishorekumar-anchala]

Thank you for bringing this issue to our attention. We will look into this issue and will update you after investigating