Announcing etcd v3.6.0

Table of Contents

• Introduction
• Security
• Features
  • Migration to v3store
  • Downgrade
  • Feature Gates
  • Livez/readyz checks
  • v3discovery
• Performance
  • Memory
  • Throughput
• Breaking changes
  • Old Binaries Are Incompatible with New Schema Versions
  • Peer Endpoints No Longer Serve Client Requests
  • Clear boundary between etcdctl and etcdutl
• Testing
• Critical bug fixes
• Upgrade issue
• Platforms
• Dependencies
  • Dependency Bumping Guide
  • Core Dependency Updates
  • grpc-gateway@v2
  • grpc-ecosystem/go-grpc-middleware/providers/prometheus
• Community
  • etcd Becomes a Kubernetes SIG
  • New Contributors, Maintainers, and Reviewers
  • New Release Team
  • Introducing the etcd Operator Working Group
• Extended Support for v3.4
• Future Development

Introduction

Today, we are releasing etcd v3.6.0, the first minor release since etcd v3.5.0 on June 15, 2021. This release introduces several new features, makes significant progress on long-standing efforts like downgrade support and migration to v3store, and addresses numerous critical & major issues. It also includes major optimizations in memory usage, improving efficiency and performance.