Installed snaps are automatically refreshed a few times a day, assuming a different revision is available on the channel being tracked.
More details about when it is to be triggered may be obtained via:
$ snap refresh --time
timer: 00:00~24:00/4
last: today at 09:08 BST
next: today at 15:09 BST
Check the state of recent updates with:
$ snap changes
ID Status Spawn Ready Summary
870 Done today at 09:08 BST today at 09:10 BST Auto-refresh snap "core"
and to view the details for a specific update, pass its ID to the change command:
$ snap change 870
Status Spawn Ready Summary
Done today at 09:08 BST today at 09:08 BST Ensure prerequisites for "core" are available
Done today at 09:08 BST today at 09:08 BST Download snap "core" (7999) from channel "edge"
Done today at 09:08 BST today at 09:08 BST Fetch and check assertions for snap "core" (7999)
Done today at 09:08 BST today at 09:08 BST Mount snap "core" (7999)
Done today at 09:08 BST today at 09:08 BST Run pre-refresh hook of "core" snap if present
Done today at 09:08 BST today at 09:08 BST Stop snap "core" services
Done today at 09:08 BST today at 09:08 BST Remove aliases for snap "core"
Done today at 09:08 BST today at 09:08 BST Make current revision for snap "core" unavailable
Done today at 09:08 BST today at 09:08 BST Copy snap "core" data
Done today at 09:08 BST today at 09:09 BST Setup snap "core" (7999) security profiles
Done today at 09:08 BST today at 09:09 BST Make snap "core" (7999) available to the system
Done today at 09:08 BST today at 09:10 BST Automatically connect eligible plugs and slots of snap "core"
Done today at 09:08 BST today at 09:10 BST Set automatic aliases for snap "core"
Done today at 09:08 BST today at 09:10 BST Setup snap "core" aliases
Done today at 09:08 BST today at 09:10 BST Run post-refresh hook of "core" snap if present
Done today at 09:08 BST today at 09:10 BST Start snap "core" (7999) services
Done today at 09:08 BST today at 09:10 BST Remove data for snap "core" (7977)
Done today at 09:08 BST today at 09:10 BST Remove snap "core" (7977) from the system
Done today at 09:08 BST today at 09:10 BST Clean up "core" (7999) install
Done today at 09:08 BST today at 09:10 BST Run configure hook of "core" snap if present
Done today at 09:08 BST today at 09:10 BST Run health check of "core" snap
Done today at 09:08 BST today at 09:10 BST Consider re-refresh of "core"
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Make snap "core" (7999) available to the system
2019-10-14T09:09:13+01:00 INFO Requested daemon restart.
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Automatically connect eligible plugs and slots of snap "core"
2019-10-14T09:09:13+01:00 INFO Waiting for restart...
2019-10-14T09:10:00+01:00 INFO cannot auto-connect slot core:bluez to bluez:client, candidates found: core:bluez, bluez:service
......................................................................
Consider re-refresh of "core"
2019-10-14T09:10:06+01:00 INFO No re-refreshes found.
For more details on snap refresh, see Keeping snaps up to date.