Docker Engine v29: A Foundation Release That Shapes the Future

Docker Engine v29: A Foundation Release That Shapes the Future Docker Engine v29 isn't your typical feature-rich release. There are no flashy new CLI commands or eye-catching dashboard changes. Instead, this release lays critical groundwork that will define Docker's architecture for years to come. If you're running Docker Engine directly on Linux, understanding these changes is essential—not because you'll see dramatic differences today, but because they set the stage for everything coming next. In this article, we'll break down every major architectural change in Docker Engine v29: the API version bump, the containerd image store becoming the default, the Go modules migration, experimental nftables support, and the critical security fix in Docker Desktop 4.44.3 (CVE-2025-9074). We'll cover what these changes mean, why they matter, and exactly what you need to do. Background: Why This Release Matters Docker has been evolving its architecture for years. The company originally created co