IPv4 versus IPv6: Which One Should We Be Using Now? or IPv4 versus IPv6: Is It Finally Time to Make t

The real hold-up? Compatibility headaches. Some apps and services still freak out with IPv6, and troubleshooting is a nightmare.

My workplace switched last year, and we had to run dual-stack (IPv4 *and* IPv6) for months to avoid breaking things. Not fun.

If you’re tinkering at home, try [HE’s IPv6 tunnel broker](https://tunnelbroker.net/) to dip your toes in.