Fuchsia

capability-based, real-time operating system (RTOS) being developed by Google

Key facts

Developer: Google
Written in: Rust , C++ , C , Dart , Go , Python , assembly language
Os family: Capability-based
Working state: Current
Source model: Open source
Initial release: 25 May 2021 ; 5 years ago ( 2021-05-25 )
Latest release: F30 / 7 April 2026 ; 2 months ago ( 7 April 2026 )
Repository: fuchsia .googlesource .com cs .opensource .google /fuchsia
Available in: English
Supported platforms: ARM64 , x86-64
Kernel type: Microkernel
Influenced by: Pink , Android , Unix kernel (but not Unix-like ), iOS

~13 min read

Article

Fuchsia is an open-source capability-based operating system developed by Google. In contrast to Google's Linux-based operating systems such as ChromeOS and Android, Fuchsia is based on a custom kernel named Zircon. It publicly debuted as a Google-hosted git repository in August 2016 without any official corporate announcement. After years of development, its official product launch was in 2021 on the first-generation Google Nest Hub, replacing its original Linux-based Cast OS.

Etymology