This is a great example (but just one of many) of how server software development works:

IANA IPv4 runout January 2011.

Kubernetes initial release June 2014. Developed by Google engineers.

ARIN IPv4 runout September 2015.

Support for IPv6-only Kubernetes clusters alphas in 1.9, December 2017.

Full support including CoreDNS support in 1.13, December 2018.

Too bad nobody had warned them about IPv4 exhaustion before they started!

On Mon, Nov 25, 2019 at 8:02 AM Andy Ringsmuth <andy@andyring.com> wrote:

> On Nov 25, 2019, at 8:56 AM, Dmitry Sherman <dmitry@interhost.net> wrote:
>
> Just received a mail that RIPE is out of IPv4:
>
> Dear colleagues,
>
> Today, at 15:35 UTC+1 on 25 November 2019, we made our final /22 IPv4 allocation from the last remaining addresses in our available pool. We have now run out of IPv4 addresses.

Does this mean we are finally ripe for widespread IPv6 adoption?

(Admit it, someone had to say it!)

----
Andy Ringsmuth
5609 Harding Drive
Lincoln, NE 68521-5831
(402) 304-0083
andy@andyring.com