California lawmakers unanimously passed AB 1856, exempting qualifying open-source operating systems, applications, software components, and extension storefronts from the state’s Digital Age Assurance Act. Sent to Governor Gavin Newsom, the measure would remove uncertainty over whether Linux distributions and package-management ecosystems would have to collect or transmit users’ age information; software under GPL, MIT, BSD, and Apache licenses is covered by the exemption.
The underlying age-assurance requirements are due to apply to proprietary platforms including Windows, macOS, iOS, and Android from January 1, 2027. AB 1856 also narrows the definition of a user, limits unnecessary age-signal requests, and creates a good-faith safe harbor for inaccurate signals. The exemption addresses concerns that broadly drafted child-safety and app-store laws—including Colorado SB51 and Brazil’s Digital ECA—could otherwise extend to Linux repositories and package managers such as apt, dnf, and pacman, creating compliance and privacy burdens for distributions including Debian, Ubuntu, Fedora, and Arch Linux.

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Following legislative passage, AB 1856 was sent to Governor Gavin Newsom for consideration.
The California Assembly accepted the Senate's amendments to AB 1856 in a concurrence vote, completing legislative passage of the open-source exemption measure.
The California Senate passed AB 1856 by a 39-0 vote. The measure exempts qualifying open-source operating systems, applications, components, and extension stores from the state's age-assurance requirements.
The California Senate amended AB 1856, adding exclusions for software distributed under terms permitting copying, redistribution, and modification, along with exclusions for certain software components and extension storefronts.
Assemblymember Buffy Wicks introduced AB 1856 to exempt qualifying open-source software from the Digital Age Assurance Act following criticism from Linux developers and the Electronic Frontier Foundation.
Governor Gavin Newsom signed California's original Digital Age Assurance Act into law. The law establishes age-signaling obligations for covered operating-system providers and application stores.
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