Motorola has made it clear in relation to the updates for the Moto Z and Moto G4, so that bypass security patches monthly for presenting various difficulties, so they have decided that they will not launch them as Google would like. A negative point for the Moto that will have to wait for a next firmware update to have their phones updated in terms of security.
With everything that emerged about Stagefright last year, it got Google to opt for monthly security patch updates that get terminals are better protected. Samsung and BlackBerry opted for these measures, although not all companies have decided to follow in Google's footsteps to launch those updates that should reach all devices monthly.
Finally, it is all that Motorola will release security updates, including those of Google's monthly cycle, but it will do so when it releases official firmware updates for its phones. This means that if you have to update one of your Motorcycles to Android 7.0 Nougat, that new firmware will include all patches security included to date.
HTC was also one of those that came to the fore to declare that the rate of monthly updates does not have much reason to be. One of the excuses left is that you have to go to the terminal for a series of tests before publishing those updates. Although everything is not very clear here, since it was Google that said that those security patches they are made to a plane It does not affect the operation of the terminal.
Also note that Motorola is in other hands and before it was able to launch very fast updates. But that way of working seems to have changed with Lenovo on its back.