Thanks so much for the update!  👌

I pinned the .55 package on my clusters and spread the news to my
clients. But this could really mess up a lot of on prem clusters where
folks upgrade selfhosted servers regularly.

Depending on which container network interface they use I guess. A lot
of them use iptables or nftables and if that doesn't work, then the
networking magic sauce in a cluster stops working. (the kubeproxy pods
if you use for instance Canal). I am surprised I haven't seen a lot more
chatter around this.  I know this impacts a lot of things, but peoples
on prem kubernetes clusters ought to be heavily impacted.

So there is an easy fix, but like me, it will take folks an hour or two
with sweaty hands to figure out that it was an apt upgrade that did
their production workloads in.

Hoping to get -58.60  into the updates pocket soon.

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https://bugs.launchpad.net/bugs/2104282

Title:
  iptables incompatibility

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