docker/buildx v0.5.0-rc1 on GitHub

This is a pre-release of buildx

BuildKit client has been updated to v0.8 #469
Docker driver now supports --push flag #442
Allow --append to be used with Kubernetes driver #370
Bake supports inline dockerfiles #398
Bake supports building from remote URLs and Git repositories #398
Build errors show error location in source files (requires BuildKit v0.8) and system stacktraces with --debug #389
Bake formats HCL errors with source definition #391
Bake allows empty string values in arrays that will be discarded #428
Kubernetes cluster config can be used with Kubernetes driver #368 #460
Buildx creates a temporary token for pulling images instead of sharing credentials when possible #469
Ensure credentials are passed when pulling BuildKit container image #441 #433
Disable user namespace remapping in docker-container driver #462
Handle lowercase Dockerfile name as a fallback for backward compatibility #444
Allow --builder flag to switch to default instance #425
Avoid warn on empty BUILDX_NO_DEFAULT_LOAD config value #390
BUILDX_CONFIG environment variable allow users to have separate buildx state from Docker config (#385)
BUILDKIT_MULTI_PLATFORM build arg allows to force building multi-platform return objects even if only one --platform specified #467
Replace error generated by quiet option by a warning #403
CI has been switched to GitHub Actions #451 #463 #466 #468 #471

Please try out the release binaries and report any issues at
https://github.com/docker/buildx/issues.