Re: [pve-devel] [PATCH frr 0/2] Bump FRR to 10.4.1

[Gabriel Goller <g.goller@proxmox.com>]

On 25.11.2025 16:53, DERUMIER, Alexandre via pve-devel wrote:
> Hi, 
> 
> 10.4.2 has been released last week.

I don't think so? At least I can't see the tag on github...

> be carefull with frr updates, from my experience they are always to a
> lot of bugs && regression when new major version is release,
> and sometime it take weeks to triggers specific bugs in production.
> (and even more to debug)

Yeah, that's exactly why I want to release every minor FRR version
(while staying one release behind). This approach should minimize
the impact when a major version is released. The big issue with PVE
8.5 was jumping from FRR 8 to 10 -- that's two major versions at
once, which caused many problems. I believe it's better to do
frequent small updates where issues are discovered quickly, rather
than large yearly updates where many problems surface at once.

What do you think about this?

That said, I understand your concerns. We've also seen FRR being
quite unstable lately with many regressions in recent releases. The
maintainers have told me this should improve going forward.

> and frr still maintain 10.2 branch for example (10.2.5).
> 
> 
> Personnaly, for my pve9 production, I'll pin my frr version to 10.2,
> because I don't have time to retest new version each 6 months.

Pinning is always possible and something the user can do. Maybe we
should create a official "guide" or article on how pin in case of
critical network bugs.
Obviously the newer features (e.g. fabrics) won't work.

I don't know how we handle other upstream dependencies that are critical
yet optional? @Thomas?

Gabriel


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