The Evolution of Android OTA: A/B Updates is a discussion on the remote update mechanism for Android operating system running on mobile devices. The article explains how Android devices are partitioned and how they can receive over-the-air updates to their OS, application software, and time zone rules. It also introduces the concept of seamless updates or A/B updates, which allows devices to apply updates without rebooting, by streaming updates directly from the network. The implementation overview includes device implementation, where the Android OS needs to be shipped with an updater that can check for updates, and a backend API that works to check for updates and deploy device updates.