The bad news is the new update, as game makers are countering cheaters by blocking the app on rooted Android devices and jailbroken iPhones. Officially, this measure is aimed against "bots and scrapers," and the service allows for automatic gameplay on behalf of the user, usually for a fee. However, as such services do not require the user to have a rooted or jailbroken device, this may not be an issue.
Another category of cheating exploits a GPS spoof, by providing the phone with fake coordinates to get unfair advantages over those who travel in physical space searching for virtual pocket monsters. GPS spoofers may find the new update inconvenient.
For those leet hackers who insist upon using jailbroken and rooted devices, there is naturally a workaround for the new restrictions. There are two caveats, however. First, the published workaround is only for Android users. Second, the process requires that the phone's OS undergo being flashed, a procedure that ordinarily resets the device to factory defaults.