Welcome to the v0.35.0-rc1 release of buildx!
This is a pre-release of buildx

NOTE

This release is missing the version tag in the filenames and --version output. This issue will be fixed by the next test release.

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

Contributors

• CrazyMax
• Tõnis Tiigi
• Sebastiaan van Stijn
• Areeb Ahmed
• Sopho Merkviladze
• Akihiro Suda
• Jiří Moravčík
• Jonathan A. Sternberg

Notable Changes

• Local output now supports a mode=delete attribute for build and bake commands. This mode replaces the destination directory with the build result instead of merging it. Similar to the --delete flag in rsync. For safety, this mode is only allowed if the destination directory is a subdirectory of the working directory. To export to other destinations, --allow=buildx.local.delete needs to be provided or the action confirmed by the user in the TUI. When exporting multi-platform results, this mode requires BuildKit v0.31.0+. #3883
• Source policies now support the new exec proxy feature of BuildKit v0.31.0+ that captures the network traffic of your build steps. To opt in to network proxy, your Dockerfile.rego source policy needs to return caps: { "exec.proxy": true } in the evaluation decision. After opting in, you can control what network requests are allowed to be made by the run steps with policy rules for regular input.http sources, similar to how this was done for direct HTTP build sources before. You can also opt in your whole builder with --buildkitd-flags '--proxy-network' in buildx create. #3895
• Resource limits can now be set for CPU and memory using the --resource flag in build and the resource key in bake commands. This feature requires BuildKit v0.31.0+ and Dockerfile v0.25.0+. #3876
• Fix possible "closed channel" panic. #3886

Dependency Changes

• github.com/aws/aws-sdk-go-v2 v1.41.7 -> v1.42.0
• github.com/aws/aws-sdk-go-v2/config v1.32.17 -> v1.32.24
• github.com/aws/aws-sdk-go-v2/credentials v1.19.16 -> v1.19.23
• github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.23 -> v1.18.29
• github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.23 -> v1.4.29
• github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.23 -> v2.7.29
• github.com/aws/aws-sdk-go-v2/internal/v4a v1.4.24 -> v1.4.30
• github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.9 -> v1.13.12
• github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.23 -> v1.13.29
• github.com/aws/aws-sdk-go-v2/service/signin v1.0.11 -> v1.1.5
• github.com/aws/aws-sdk-go-v2/service/sso v1.30.17 -> v1.31.3
• github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.21 -> v1.36.6
• github.com/aws/aws-sdk-go-v2/service/sts v1.42.1 -> v1.43.3
• github.com/aws/smithy-go v1.25.1 -> v1.27.2
• github.com/containerd/containerd/v2 v2.2.3 -> v2.2.4
• github.com/containerd/continuity v0.4.5 -> v0.5.0
• github.com/containerd/platforms v1.0.0-rc.2 -> v1.0.0-rc.4
• github.com/containerd/typeurl/v2 v2.2.3 -> v2.3.0
• github.com/docker/cli v29.4.3 -> v29.5.3
• github.com/docker/docker-credential-helpers v0.9.5 -> v0.9.8
• github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 -> v2.29.0
• github.com/moby/buildkit v0.30.0 -> v0.31.0-rc1
• github.com/moby/sys/sequential v0.6.0 -> v0.7.0
• github.com/pelletier/go-toml/v2 v2.2.4 -> v2.3.1
• github.com/tonistiigi/fsutil a2aa163d723f -> 0257b3308df4
• go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.68.0 -> v0.69.0
• go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.68.0 -> v0.69.0
• go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 -> v0.69.0
• go.opentelemetry.io/otel v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/metric v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/sdk v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/sdk/metric v1.43.0 -> v1.44.0
• go.opentelemetry.io/otel/trace v1.43.0 -> v1.44.0
• go.yaml.in/yaml/v2 v2.4.3 -> v2.4.4
• google.golang.org/genproto/googleapis/api 6f92a3bedf2d -> 3dc84a4a5aaa
• google.golang.org/genproto/googleapis/rpc 6f92a3bedf2d -> 3dc84a4a5aaa
• google.golang.org/grpc v1.80.0 -> v1.81.1

Previous release can be found at v0.34.1