The panel decides the probe/agent pairs and probes always dial out. A new
fleet.auto_link setting connects every probe to every agent (default); with it
off only the pairs chosen by hand connect, and any pair can be forced on or
off. The Probes page has a link matrix with the switch and per-pair toggles.
Acrylic cards and topbar over a blurred background, country flags, ISP and
OS icons, per-node version tags, a build info footer and an admin versions
tab. Overview cards drop the sparkline and widen the hover area.