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by saltminer 1784 days ago
>IPv6 takes that decision away from you

No, it doesn't. Your ISP is the one who can take that decision away from you. I have Google Fiber, and my public IPv4 address has not changed in around six months, while my IPv6 block has changed twice in that same time. This is despite replacing my router and several multi-hour power outages. I believe the only reliable way to get a new IPv4 address is to call support.