The Podman team shipped version 6.0.0 on Wednesday, marking the container engine's most significant architectural upgrade since it became Docker's primary open-source alternative. The release modernizes the networking stack, expands virtual machine capabilities, and overhauls Quadlet — the systemd-native container runner.

Networking gets a ground-up rebuild. Podman 6 transitions away from slirp4netns and iptables, moving instead to Netavark, Pasta, and nftables. The shift simplifies the codebase and unblocks future features. Experimental support for Pesto rootless port forwarding also lands in this release, preserving correct source IP addresses for rootless containers on custom networks — a long-standing pain point.

Multi-cloud VMs from a single CLI. The podman machine command now supports a seamless multi-provider experience, letting developers manage VMs across different cloud providers without switching tools. A new podman machine os update subcommand keeps VM environments current without manual intervention.

Quadlet grows up. Quadlet, Podman's systemd integration layer, gets REST API support, improved file tracking for associated units, expanded .volume unit features, and additional search paths that make distribution packaging easier. The update turns Quadlet from a convenience layer into a production-grade orchestration primitive.

Better Docker compatibility. API updates and refined command output continue narrowing the gap between Podman and Docker, making migrations smoother for teams still running the older engine.

Podman started as Red Hat's answer to Docker's shifting licensing model. Six major versions later, it has become the default container runtime in Fedora and RHEL, and v6.0.0 signals the project's ambition to be more than a drop-in replacement — it wants to be the platform.

Sources: Podman Blog, GitHub Release