etcd 3.7.0‑beta.0 adds RangeStream, drops v2store, and marks v3.4 EOL

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etcd 3.7.0‑beta.0 is now available

The Kubernetes SIG‑etcd released the first beta of etcd v3.7.0. The announcement highlights several major changes that affect developers and operators of Kubernetes clusters.

RangeStream RPC

Version 3.7 introduces the RangeStream RPC, allowing clients to receive large result sets in incremental chunks rather than waiting for the entire response. This reduces latency spikes and makes memory usage more predictable for applications that query extensive key ranges.

Removal of the v2store

All remaining v2store components—discovery, bootstrap, v2 requests, and the v2 client—have been removed. etcd 3.7.0‑beta.0 is therefore the first release that is 100 % based on the v3store implementation.

Version 3.4 End‑of‑Life

According to the project’s support policy, etcd v3.4 reached end‑of‑life on 15 May 2026. A final security patch may be issued at the end of May if a critical vulnerability is discovered.

Other notable updates

  • Bundled bbolt upgraded to v1.5.0.
  • Bundled raft upgraded to v3.7.0.

How to try the beta

Binary downloads, source code, and official container images are available on the release page. Users are encouraged to test the beta in their environments and report any issues via GitHub issues, the #SIG‑etcd Slack channel, or the etcd‑dev mailing list.

Looking ahead

Additional betas and release candidates are planned through June, with a final release expected in early July 2026.