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The London Mercurial sprint gathered nearly 20 developers to work on bug fixes, documentation, and ecosystem projects like hg-git and Heptapod, hosted by Jane Street and organized by Mercurial maintainers.
This FOSDEM 2026 talk explores how Mercurial, the distributed version control system, remains active and competitive 20 years after its creation, despite losing the popularity battle to Git. Speakers discuss the project's history, community, technical innovations, and lessons for the future of version control.