I have version 16-2.42.5 rev 8268 installed, and refreshes the snap and it says I’m on the latest version although there is a new version (16-2.43.2 rev 8592)
$ snap list core
Name Version Rev Tracking Publisher Notes
core 16-2.42.5 8268 stable canonical✓ core
$ snap refresh core
snap "core" has no updates available
$ snap info core
name: core
summary: snapd runtime environment
publisher: Canonical✓
contact: snaps@canonical.com
license: unset
description: |
The core runtime environment for snapd
type: core
snap-id: 99T7MUlRhtI3U0QFgl5mXXESAiSwt776
tracking: stable
refresh-date: 21 days ago, at 19:53 UTC
channels:
stable: 16-2.43.2 2020-02-11 (8592) 95MB -
candidate: 16-2.43.3 2020-02-13 (8689) 95MB -
beta: 16-2.43.3 2020-02-12 (8689) 95MB -
edge: 16-2.43.3+git1659.8fa09ac 2020-02-16 (8704) 96MB -
installed: 16-2.42.5 (8268) 93MB core
BTW… The last updated dates (2020-02-11) differs from the information on https://snapcraft.io/core which says 28 January 2020.