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SerenityOS

SerenityOS specifications

SerenityOS is a Love letter to 1990s user interfaces with a custom Unix-like core, written from scratch in modern C++.

Developer Andreas Kling and SerenityOS contributors
Kernel / engine SerenityOS custom monolithic kernel
Supported platforms x86-64, AArch64, RISC-V
First released 2019-03-01

Latest SerenityOS versions:

Latest SerenityOS user agents:

User Agent Browser Device
Mozilla/5.0 (SerenityOS; x86_64) LibWeb+LibJS/1.0 Browser/1.0 Ladybird 1 Unknown
Mozilla/5.0 (SerenityOS; x86_64) Ladybird/1.0 Ladybird 1 Unknown
Mozilla/5.0 (SerenityOS; x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/146.0.0.0 Safari/537.36 Ladybird/1.0 Ladybird 1 Unknown