IPv6 for paid custom filtering plans?

I see you have IPv6 addresses published for the pre-built free DNS services (security / adult / family).  Do you also support IPv6 access to paid DNS plans?  Including an IPv6 address to access the DNS service, and also a tool to keep my external IPv6 IP address up-to-date in your system so you know which custom settings to use?

Have been fighting network issues for a while.  Trying to narrow in on what is causing them.  Trying a new wifi router with some success, but still have occasional issues.  Have been using SafeDNS, so am testing alternate DNS solutions to see if my choice in DNS provider has anything to do with my issues.  But also starting to wonder if I might be running into IPv6-related issues, I may want to try enabling IPv6 on my router.  Wondering if CleanBrowsing has enough IPv6 support that this would be possible.