It seems Google has opened up a little bit about its Fuchsia operating system. A (I think) new ‘Overview’ page details what Fuchsia is, what it’s not, and what it’s intended to be used for. Security is obviously a primary goal of the operating system:
Security and privacy are woven deeply into the architecture of Fuchsia. The basic building blocks of Fuchsia, the kernel primitives, are exposed to applications as object-capabilities, which means that applications running on Fuchsia have no ambient authority: applications can interact only with the objects to which they have been granted access explicitly.
Software is delivered in hermetic packages and everything is sandboxed, which means all software that runs on the system, including applications and system components, receives the least privilege it needs to perform its job and gains access only to the information it needs to know.
Google seems to want to make really clear that Fuchsia is diametrically the opposite of Android when it comes to updates. They don’t mince words here, and it might as well read “everything Android is not”:
Fuchsia works by combining components delivered in packages. Fuchsia packages are designed to be updated independently or even delivered ephemerally, which means packages are designed to come and go from the device as needed and the software is always up-to-date, like a Web page.
Fuchsia aims to provide drivers with a binary-stable interface. In the future, drivers compiled for one version of Fuchsia will continue to work in future versions of Fuchsia without needing to be modified or even recompiled. This approach means that Fuchsia devices will be able to update to newer versions of Fuchsia seamlessly while keeping their existing drivers.
There’s more information about Fuchsia on the page, but the final paragraph should finally shed some light on that Google is definitely serious about the new operating system, and is intending to actually, you know, use it for stuff.
Fuchsia’s goal is to power production devices and products used for business-critical applications. As such, Fuchsia is not a playground for experimental operating system concepts. Instead, the platform roadmap is driven by practical use cases arising from partner and product needs.