hi team, I noticed that the latest version availab...
# fluent-bits
Sanath Ramesh
12/05/2025, 10:25 AMhi team, I noticed that the latest version available for Windows 2019 docker image is fluentbit 4.0.3. And recently some CVEs were patched in fluent bit 4.2.0. Are there any plans to release an image for this?
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Rajeev Kumar Kallempudi
12/13/2025, 3:31 PMany inputs on this one?
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Pat
12/13/2025, 3:47 PMWe updated to more recent versions of Windows server for the later versions.
https://github.com/fluent/fluent-bit/pull/10760
The main issue being the GIthub runner images available to the OSS project (you need to have a compatible host to build the image): https://github.com/actions/runner-images/issues/12045
You can still build for the older targets if you want and have a build machine that supports it. I think you can do this just by specifying the
WINDOWS_VERSION=ltsc2019Pat
12/13/2025, 3:53 PMI double checked and Windows Server 2019 also ended mainstream support on January 9, 2024. You would need to pay for extended security updates to get critical security updates after that and that's not something the OSS project can realistically support.
https://learn.microsoft.com/en-us/lifecycle/products/windows-server-2019
If you need that I would say it's best to contact an enterprise provider: https://fluentbit.io/enterprise/
(Full disclosure, I work for one - FluentDo - and we could 🙂 ).
Pat
12/13/2025, 3:58 PMNow, if we can do an older build on a more recent runner version then I'm happy to add that in but from memory we got horrible failures every time we've tried this in the past.
Pat
12/13/2025, 3:58 PMPlus those image builds consume vast quantities of compute/build time.