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• Undoing a dnf transaction and locking package versions on RHEL

  dnf keeps a full transaction history that can be inspected, undone or rolled back, and the versionlock mechanism pins a package to its current version across later updates. This methodology covers both, the difference between undo and rollback, and what differs in DNF5 on current Fedora.

  methodology · en · reviewed · knowledge as of 2026-09-24

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