[throw0101a]

> Lets Encrypt was released to the public in 2014 and by like... 2019 basically all of the internet was HTTPS.

This is apples and oranges: absolutely zero software upgrades needed to be done to get HTTPS going and/or Let's Encrypt running.

I was able to get LE going on our F5 appliances in a few working days with zero changes to the base system/appliance software by simply installing the dehydrated ACME client and all of a sudden dozens of sites where we previously didn't want to pay for a cert were "secure".

Network hardware can stay in place for quite a while. Our previous generation of core switches lasted us 7 years before we swapped them out.

I wouldn't be surprised some of the mega-chassis routers in ISPs and other telcos sit around as long.

[kazen44]

7 years for a core router is on the low end aswell. High end routers consist of a chassis which can last a decade or more easily. usually the line cards inside the chassis are replaced to allow higher band with, but the control plane can stay in place for a very long time.