I feel lucky to have our little /27 colo block. We added IPv6 support to our firewall product earlier this year and it was a big deal - lots of schema and code

I feel lucky to have our little /27 colo block. We added IPv6 support to our firewall product earlier this year and it was a big deal - lots of schema and code changes to deal with 128 bit wide addresses and address math. I'd encourage any devs working on new products to bake it in from v1 if you can.