13.4 Snap Refresh Schedule

The snap system includes a background service named snapd which is responsible for refreshing installed snaps based on the channels that they are tracking. By default, snapd performs refresh operations at regular intervals (typically four times a day). To identify when the last refresh was performed and the next is due, run the following command:

# snap refresh --time

timer: 00:00~24:00/4

last: today at 07:23 EDT

next: today at 14:25 EDT

The above output also includes timer information which indicates that the refresh will be performed four times within each 24 hour period:

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timer: 00:00~24:00/4

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The snap command can also be used to force a refresh of all installed snap packages as follows:

# snap refresh

Alternatively, to refresh a specific package:

# snap refresh remmina

To switch a package to a different channel without having to wait for the next snapd service refresh, simply run the snap refresh command...