Maybe this is the push that finally makes IPv6 go mainstream!
post
I'm glad that Linus clarified that it was High Resolution Timers. I was honestly thinking they were arguing about Hormone Replacement Therapy.
Given the demographics of Linux devs, it probably would be the latter.
I know! It seemed totally plausible! There is a very odd discrepancy between that and the general population.
THE TOASTER WILL BE REPLACED.
Fucking legendary quote from Linus.
Thanks for the alt text & transcript in OP.
It's missing here, though.
Transcript
From: Linus Torvalds <torvalds@linux-foundation.org>
To: linux-kernel@vger.kernel.org
Subject: [RFC] Remove IPv4 support from kernel, effective next merge window
Date: Sat, 15 Aug 2025 10:42:00 -0700
Message-ID: <20250815-drop-ipv4@linux-foundation.org>Hey folks,
After yet another deeply technical and entirely calm discussion about HRT (High-Resolution Timers) that somehow devolved into 200+ replies, personal insults, and at least one GIF of a raccoon, I have decided it's time to take drastic measures.
Effective next merge window, we will be removing IPv4 support from the kernel. This will both (a) resolve the maintainers' scheduling disputes, and (b) force the world into the IPV6 utopia we were promised back in 1998.
If you need IPv4 after this point, you can either:
- run an ancient kernel from before the change (good luck with the bugs), or
- rewrite your applications to use IPv6 and learn to love colons in your addresses.
Yes, I realize this will break roughly *everything *.
No, I don't care. I have already switched all my machines to IPv6-only, except for the toaster, which unfortunately still insists on using a 192. 168. x. x address. The toaster will be replaced.If you disagree with this decision, I suggest you take it up with the HRT maintainers. But please keep it civil this time. (Or at least keep the raccoon GIFs under 1MB.)
- Linus
Chat, is this real?
Is the raccoon gif real?
A highly nuclear option. I hope that those developers get their act together in time.
Well I'm not going to switch away my perfectly functional mesh routers that uses IPv4 as using IPv6 on a local net that I may sometimes need to type in manually is rather stupid. And that would also bin my routers, so I'm not doing that either.
Oh well, I guess it's been fun guys, no more Linux for me due to potential future security issues.
Do you even DNS?
No. But if this is true (which I do doubt completely, Linus can't be this dumb to singlehandedly cripple his OS), this should also affect every intranet address.
The current description of IPv6 intranet is just ridiculously dumb anyway. Should I want to ssh into a local device, I'll have to type in for example fd9e:9aa0:c00f:1::a, with only the fd part being the same for all intranets rather than 192.168.1.10 with 192.168 generally always being the same.
Edit: wait... Are you telling me to set DNS redirects on all my local devices? Yeah, that'll work, but why the even...
I don't think I've entered an IP address for a local device in years. Everything is accessible using <hostname>.local thanks to mDNS. Avahi has been doing this for... 20 years I think?
Pihole automatically adds clients that get an IP from its DHCP component. All my clients are server.local, client1.local, tv1.local, etc. So I can use their DNS name everywhere.
Even if it don't want to use pihole(why?), you can edit the SSH config and add addresses for each host so you can just type
ssh server
wait... Are you telling me to set DNS redirects on all my local devices? Yeah, that'll work, but why the even...
What do you mean by that? I'm pretty sure people are telling you to run a DNS server and set up entries for any clients you want to regularly connect to.
with only the fd part being the same for all intranets
Why?
I think it is more likely that 95% of network equipment supports IPv6
Except whatever brings internet to my apartment apparently
Your ISP needs to setup IPv6 which isn't trivial to do from scratch.
What provider is it?
Mine is Quantum Fiber, a sister of CenturyLink. CL has it, apparently QF doesn't. Or at least not natively, rather 6rd. And then possibly not on the modem they installed? At any rate, I haven't been able to find anything online.
I'm on one of the regions of fiber that CenturyLink spun off to a private equity firm a few years ago. Zero IPv6 support here
It should have IPv6
Odd
π€·πΌββοΈ When I had CL I could turn it on by enabling 6rd and it worked as expected. When I moved across town and got QF, their instructions didn't account for it and following the same online instructions for CL don't work. Others online seem to not have had any luck either, but some people's comments make it sound like it's the modem.
As long as IPv2 support remains intact, I'm good.
/s
A major ISP in the UK still doesnβt have any IPv6 support :( https://www.havevirginmediaenabledipv6yet.co.uk/
I still don't have an IPv6 address over 4G with Vodafone. I want to run a web server on my phone, isn't this a normal use case? Nat444 makes that pretty difficult, just let me use IPv6!
That's impressive
Scaling NAT is complex and expensive. They are literally making it harder
Cabled from Vodafone is not much better, ip6 does auto configure from the router with a local address, so it at least supports it. but no routable ips yet.
Actually on someone else's network right now and think it's cabled Vodafone and I do have IPv6. Only got android to play with right now though, apparently Vodafone are tight bastards for the range of addresses you can get.
Edit: version of Android I am on only let's you set a static IPv4 address, what a shit operating system
They give 2 options: "Sign the petition" and "Tweet them!", but you could also just en-masse "Switch providers" and make them rethink their strategy.
I wonder if that site pings an IPv6 address on the virgin network and updates the output automatically based on the ping result.
I'm on Spectrum in the US and their "support" is somehow worse than just not having IPv6. Tons of dropped packets, shifting IP address ranges, and overall a lot of headaches. Tried everything I could to sidestep the issues but there was nothing doing. Eventually I just disabled IPv6 and the issues went away. Maddening.
IPv4 killed my parents.
Don't worry about the network side of things. It's open source. Before they turn everything on its head would be forked and it would be replaced.
Maybe you shouldn't treat random images you find on the internet as factual until you can verify the content.
Please, at least 85% of that network equipment hasn't been updated in 30 years and they're not about to start now.
I need to inflict this reply upon others. It is so gloriously cursed out of context. And in context too.

(youtube) explainer link for the unfamiliar : https://youtube.com/watch?v=ABpT6e-KlOo
Linus did a follow-up: https://xn--c8h.fm/notes/abh00crrs1gcja8q
I've seen https://xn--gckvb8fzb.com/ before
I still miss IPv5
What's a Gigahon?
transphobic slur used on 4chan to refer to trans women who do not pass as cis women
also, injections are the best route of administration for estrogen
also, injections are the best route of administration for estrogen
people like you are the reason we're losing IPv4 support on linux! (/s of course)
Oof that's way worse than I thought
here's the rabbit hole if you'd like to learn more: https://www.brainworms.lgbt/
Just remember, a lot of trans people have internalized transphobia - that doesn't excuse it, but it's important context that a lot of this is self loathing.
I actually just thought it was calling someone extra naive. Like when someone says something naive, and you go "Oh hon..." Or "Oh my sweet summer child..."
Ironically, that's kind of where I find myself now.

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