- Downgraded Go builder to 1.21.7 to avoid deadlocked HTTP connections in vmagent.
- Fixed endpoint limits, deadlocks, floating‑point time parsing, and added proper error handling for step=0 queries.
- Restored periodic connection closing, added OpenTelemetry /opentelemetry/v1/metrics support, and corrected UI sorting and MetricsQL label‑join behavior.
v1.97.3
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Enable multitenancy via headers by default for vmselect, vminsert and vmagent (default flag changed to true), which may break existing URL patterns.
Upgrade Go builder to Go1.26.6, addressing security issues in the runtime.
Upgrade Go builder from 1.26.5 to 1.26.6 for security patches.