For official release notes for Docker Engine CE and Docker Engine EE, visit the release notes page.

Security

• CVE-2020-15257: Update bundled static binaries of containerd to v1.3.9 moby/moby#41731. Package managers should update the containerd.io package.

Builder

• Beta versions of apparmor are now parsed correctly preventing build failures moby/moby#41542

Networking

• Fix panic when swarmkit service keeps failing to start moby/moby#41635

Runtime

• Return correct errors instead of spurrious -EINVAL moby/moby#41293

Rootless

• Lock state dir for preventing automatic clean-up by systemd-tmpfiles moby/moby#41635
• dockerd-rootless.sh: support new containerd shim socket path convention moby/moby#41557

Logging

• gcplogs: Fix memory/connection leak moby/moby#41522
• awslogs: Support for AWS imdsv2 moby/moby#41494