# etcd v3.6.16

> Kubernetes Core · 2026-10-22

A maintenance release with correctness fixes and updated build and observability dependencies, including fixes for disclosed security advisories. The dependency updates affect OpenTelemetry tracing and `golang.org/x/net`, alongside an updated Go toolchain for compiled binaries.

## Action needed
- **[security · critical]** `golang.org/x/net` updated for security advisories
  - The release updates `golang.org/x/net` to v0.61.0 to address `GO-2026-6617`, `GO-2026-6612`, `GO-2026-6611`, and `GO-2026-6603`.
- **[security · low]** OpenTelemetry dependencies updated for GO-2026-6505
  - The release updates `go.opentelemetry.io/otel/sdk`, `go.opentelemetry.io/otel/exporters/otlp/otlptrace`, and `go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc` to v1.45.0 to address `GO-2026-6505`.

## Other recorded changes
- 3 (defect_corrected 2, value_changed 1)

[Full analysis](https://ratatosk.io/en/releases/etcd/v3.6.16)

[Original release notes](https://github.com/etcd-io/etcd/releases/tag/v3.6.16)