Encryption is a very thorny, controversial issue these days, mostly due to Apple’s lengthy clash with the FBI, but Google couldn’t just sit on the sidelines and leave the newest iteration of Android (dessert name pending) vulnerable to intruders.
Instead, Android N picks up file-based rather than block-level encryption, as well as seamless updates downloaded in the background no longer needing approval and bothering you with pesky prompt messages.
Essentially, Big G thinks it knows what’s best for your (Nexus) devices, and will work on pushing security patches faster and smoother than ever before. There’s also media framework hardening in the pipeline, and passwords aren’t mandatory on boot. That’s about it for the moment, but we’re certain there’s a lot more coming… in the fall, once N moves out of beta.