It affects current clients; they just enforce the limits differently. You can get up to the greater of 2x your current userbase or 100,000 users at the time of

It affects current clients; they just enforce the limits differently. You can get up to the greater of 2x your current userbase or 100,000 users at the time of the announcement. For applications with a massive install base that could still allow for significant growth, but they're still limited to not more than doubling in size.