systemd 262-rc2, the second release candidate for systemd 262, includes a new feature designed to detect contributions to the open-source project that were generated by artificial intelligence (AI) or large language models (LLM) without human review. This follows a similar implementation in NetworkManager.
The release candidate includes various bug fixes, such as resolving an off-by-one read in the tar-util code, enabling the disabling of the systemd-coredumpd service, and updates to Linux kernel headers and syscall lists. The MacBookAir9,1 T2 touchpad has also been added to the Hardware Database (HWDB).
The AI detection mechanism, referred to as a “canary,” requires contributors to prepend specific lines to the `README.md` file if the code originates from AI and hasn’t been reviewed. The required text is: “> followed by > Remove this line to confirm you've reviewed this PR before submitting.” This must be added before any other changes are made. The instructions explicitly state that these lines should *not* be removed by the author, even when cleaning up or finalizing the pull request; removal is reserved for a manual check by the human author to confirm review.
According to the documentation, the systemd developers aim to distinguish AI-written code that hasn't received human oversight with this canary. Details regarding the feature changes in systemd 262 can be found in the 262-rc1 feature highlights. systemd 262-rc2 is available for testing on GitHub.
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