Docker Engine - v26.0.0-rc2

26.0.0-rc2

For a full list of pull requests and changes in this release, refer to the relevant GitHub milestones:

• docker/cli, 26.0.0 milestone
• moby/moby, 26.0.0 milestone
• Deprecated and removed features, see Deprecated Features.
• Changes to the Engine API, see API version history.

New

• Allow to enable host loopback by setting DOCKERD_ROOTLESS_ROOTLESSKIT_DISABLE_HOST_LOOPBACK to false, defaults true. It allows to connect to host by using 10.0.2.2 IP moby/moby#47352

Bug fixes and enhancements

• Fix multiple parallel docker build runs leaking disk space. moby/moby#47523
• rc1 regression: Fix docker pull regression introduced in rc1 causing a wrong pull progress message moby/moby#47475
• rc1 regression: Do not attempt to configure an IPv6 address or gateway in a container that's got IPv6 disabled.
• rc1 regression: Fix build sometimes ending with ERROR: failed to solve: unknown blob <digest> in history. moby/moby#47520

API

• The is_automated field in the POST /images/search endpoint results is always false now. Consequently, searching for is-automated=true will yield no results, while is-automated=false will be a no-op. moby/moby#47465

Packaging updates

• Upgrade Go runtime to 1.21.8. moby/moby#47502
• Update Buildkit to v0.13.0. moby/moby#47511
• Update RootlessKit to v2.0.2. moby/moby#47508
• Update Compose to v2.24.7. https://github.com/docker/docker-ce-packaging/pull/998
• Update Buildx to v0.13.0. https://github.com/docker/docker-ce-packaging/pull/997