主题： snap

• Administering snap packages on Ubuntu: updates, holds, confinement and safe removal

  snapd refreshes installed snaps automatically several times a day; an administrator controls that with snap refresh --hold or the system-wide refresh.timer/refresh.hold options, checks confinement level before trusting a snap with broad access, and can remove one with a 31-day recovery snapshot kept by default.

  article · en · reviewed · 知识截至 2026-09-24

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