[2b3a51]

https://lwn.net/Articles/863008/

About 1 million CentOS 6 boxes of some description hitting the update servers as of July 2021. Compared with roughly 2 million on v7 and half a million on v8.

Would be interesting to know how those percentages have changed since then.

[bombcar]

This is one of the reasons why if we ever touch a box (say to update whatever it is doing) we also bring it to the latest possible version of the OS we can find; luckily for us CentOS exploded just before the last one, so we moved to Ubuntu instead of CentOS 8 which was our original plan.