TailscaleMetrictailscale.version.info
Version metadata labelsDimensions:None
Available on:
Prometheus (1)
Prometheus (1)Summary
Metadata gauge (typically value 1) with labels encoding the Tailscale client version, platform, and build information. The value itself is not meaningful; version details are in the metric labels. Monitor to track client version distribution across the fleet, detect version heterogeneity limiting features, and identify nodes running vulnerable or outdated versions requiring updates.
Interface Metrics (1)
Technical Annotations (16)
Configuration Parameters (1)
protorecommended: omit if clients < v1.18.2CLI Commands (4)
tailscale versiondiagnostictailscale statusdiagnostictailscale status --selfdiagnostictailscale syspolicy listdiagnosticTechnical References (11)
tailscaled daemoncomponentsrcPosturecomponentdevice postureconceptMDMcomponentWindows 7componentWindows 8componentWindows Server 2008componentWindows Server 2012componentversion 1.42.0componentsystem policyconceptv1.18.2componentRelated Insights (8)
Outdated Tailscale client version prevents device connectivitywarning
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Tailscale client version below 1.52.0 prevents device posture checkingwarning
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Outdated client versions lack security updates and featureswarning
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Legacy Windows platform support ending after version 1.42.0warning
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Tailscale 1.78+ required for metrics command supportinfo
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System policy changes require client restart in older versionswarning
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Tailscale version below 1.18.2 blocks ACLs with proto fieldcritical
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Tailscale version heterogeneity limiting feature availabilityinfo
When devices in a tailnet run significantly different Tailscale versions, newer features may be unavailable to some nodes, protocol negotiation can fall back to older mechanisms, and interoperability issues may arise. This creates an inconsistent user experience and limits ability to leverage new capabilities.
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