v0.26.2

Welcome to the v0.26.2 release of buildkit!

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

Contributors

• CrazyMax
• Tõnis Tiigi

Notable Changes

• Fix possible error when uploading big files to S3 cache exporter #6373

Dependency Changes

This release has no dependency changes

Previous release can be found at v0.26.1

v0.26.1

Welcome to the v0.26.1 release of buildkit!

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

Contributors

• Tõnis Tiigi

Notable Changes

• Fix excessive chunking when fetching blobs #6366

Dependency Changes

This release has no dependency changes

Previous release can be found at v0.26.0

v0.26.0

buildkit 0.26.0

Welcome to the v0.26.0 release of buildkit!

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

Contributors

• Tõnis Tiigi
• CrazyMax
• Akihiro Suda
• Sebastiaan van Stijn
• Jonathan A. Sternberg
• Brian Goff
• Dawei Wei
• Alberto Garcia Hierro
• Damon Holden
• David Karlsson
• Justin Chadwell
• Mikhail Dmitrichenko
• bpascard

Notable Changes

• Change how file checksum is calculated when wildcards and include/exclude patterns are involved to better align with how they are calculated in the non-wildcard path. #6238
• LLB Copy operation now allows specifying required paths to be included in the copy. #6229
• Fixed race condition between cache and snapshot for the Git source. #6281
• Fixed race condition in HTTP cache key digest computation that could cause duplicate requests and digest mismatch errors. #6292
• Runc container runtime has been updated to v1.3.3. #6331
• Source metadata requests via ResolveSourceMeta, previously available for image sources, can now be performed for Git sources. This can be used to resolve Git commit and tag checksums and also to access the raw commit and tag objects for further verification. #6283
• Source metadata requests via ResolveSourceMeta, previously available for image sources, can now be performed for HTTP sources. This can be used to access artifact checksums, last-modified time etc. #6285
• Git sources can now perform verification of GPG or SSH signatures on commits and tags. Enable git signature checks via source policy. #6300 #6344
• contentutil package now supports moving referrer objects when using CopyChain function. #6336
• Fix fetch by commit for git source when tags change or branch names are updated. #6259
• Fix http connection leak when resolving metadata from http source on non-2xx HTTP status codes. #6313
• A new type of source policies has been added that supports making policy decisions on the client side via session tunnel. #6276
• Add buildkit capability for detecting if source policy decisions can be made via session tunnel. #6345
• Avoid intermediate type wrappers for custom fields in provenance. #6275
• Add raw commit/tag object access when resolving git source metadata. #6298
• Move image source resolver away from the ResolveImageConfig type to ResolveSourceMetadata. #6330 # probably not needed for changelog
• Fix inline cache used with multiple exporters. #6263
• Fix handling multiple inline cache exporters configured for single build. #6272
• Fix handling of annotated Git tags. The pin of the annotated tag should be the SHA of the tag and not the commit it is pointing to. #6251
• Fix source policy attributes validation when multiple rules use the same identifier. #6342

Dependency Changes

• github.com/Azure/azure-sdk-for-go/sdk/azcore v1.16.0 -> v1.18.2
• github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.8.0 -> v1.11.0
• github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0 -> v1.11.2
• github.com/AzureAD/microsoft-authentication-library-for-go v1.3.2 -> v1.4.2
• github.com/Microsoft/hcsshim v0.13.0 -> v0.14.0-rc.1
• github.com/ProtonMail/go-crypto v1.3.0 new
• github.com/aws/aws-sdk-go-v2 v1.30.3 -> v1.38.1
• github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.3 -> v1.7.0
• github.com/aws/aws-sdk-go-v2/config v1.27.27 -> v1.31.3
• github.com/aws/aws-sdk-go-v2/credentials v1.17.27 -> v1.18.7
• github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.11 -> v1.18.4
• github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.17.8 -> v1.17.10
• github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.15 -> v1.4.4
• github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.15 -> v2.7.4
• github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 -> v1.8.3
• github.com/aws/aws-sdk-go-v2/internal/v4a v1.3.15 -> v1.4.4
• github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3 -> v1.13.0
• github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.3.17 -> v1.8.4
• github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17 -> v1.13.4
• github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.17.15 -> v1.19.4
• github.com/aws/aws-sdk-go-v2/service/s3 v1.58.2 -> v1.87.1
• github.com/aws/aws-sdk-go-v2/service/sso v1.22.4 -> v1.28.2
• github.com/aws/aws-sdk-go-v2/service/ssooidc v1.26.4 -> v1.34.0
• github.com/aws/aws-sdk-go-v2/service/sts v1.30.3 -> v1.38.0
• github.com/aws/smithy-go v1.20.3 -> v1.22.5
• github.com/cenkalti/backoff/v5 v5.0.3 new
• github.com/cloudflare/circl v1.6.0 new
• github.com/containerd/cgroups/v3 v3.0.5 -> v3.1.0
• github.com/containerd/containerd/api v1.9.0 -> v1.10.0
• github.com/containerd/containerd/v2 v2.1.4 -> v2.2.0
• github.com/containerd/go-cni v1.1.12 -> v1.1.13
• github.com/containerd/nydus-snapshotter v0.15.2 -> v0.15.4
• github.com/containerd/platforms v1.0.0-rc.1 -> v1.0.0-rc.2
• github.com/containerd/stargz-snapshotter v0.16.3 -> v0.17.0
• github.com/containerd/stargz-snapshotter/estargz v0.16.3 -> v0.17.0
• github.com/containernetworking/plugins v1.7.1 -> v1.8.0
• github.com/coreos/go-systemd/v22 v22.5.0 -> v22.6.0
• github.com/docker/cli v28.4.0 -> v28.5.0
• github.com/fatih/color v1.18.0 new
• github.com/go-logr/logr v1.4.2 -> v1.4.3
• github.com/gofrs/flock v0.12.1 -> v0.13.0
• github.com/golang-jwt/jwt/v5 v5.2.2 -> v5.3.0
• github.com/golang/groupcache 41bb18bfe9da -> 2c02b8208cf8
• github.com/google/pprof 27863c87afa6 -> f64d9cf942d6
• github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 -> v2.27.2
• github.com/hanwen/go-fuse/v2 v2.6.3 -> v2.8.0
• github.com/hashicorp/go-retryablehttp v0.7.7 -> v0.7.8
• github.com/hiddeco/sshsig v0.2.0 new
• github.com/klauspost/compress v1.18.0 -> v1.18.1
• github.com/mattn/go-colorable v0.1.14 new
• github.com/moby/policy-helpers bcaa71c99f14 new
• github.com/moby/sys/capability v0.4.0 new
• github.com/opencontainers/runtime-tools 2e043c6bd626 -> 0ea5ed0382a2
• github.com/prometheus/client_golang v1.22.0 -> v1.23.2
• github.com/prometheus/client_model v0.6.1 -> v0.6.2
• github.com/prometheus/common v0.62.0 -> v0.66.1
• github.com/prometheus/procfs v0.15.1 -> v0.16.1
• github.com/secure-systems-lab/go-securesystemslib v0.6.0 -> v0.9.1
• github.com/stretchr/testify v1.10.0 -> v1.11.1
• github.com/vbatts/tar-split v0.12.1 -> v0.12.2
• go.opentelemetry.io/auto/sdk v1.1.0 -> v1.2.1
• go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 -> v0.61.0
• go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.60.0 -> v0.61.0
• go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 -> v0.61.0
• go.opentelemetry.io/otel v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc...

dockerfile/1.20.0-labs

Usage

# syntax=docker.io/docker/dockerfile-upstream:1.20.0-labs

dockerfile/1.20.0

Usage

# syntax=docker.io/docker/dockerfile-upstream:1.20.0

Notable changes

• The --security flag for RUN instructions is now generally available. This flag was previously available under the labs channel. #6312
• The --parents flag for COPY instructions is now generally available. This flag was previously available under the labs channel. #6282
• Add support for converting a dockerfile to the LLB contents using a subrequest. Use buildx build --call=convertllb . for this functionality. #6295

v0.26.0-rc2

buildkit 0.26.0-rc2

Welcome to the v0.26.0-rc2 release of buildkit!
This is a pre-release of buildkit

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

Contributors

• Tõnis Tiigi
• Akihiro Suda
• Justin Chadwell
• Sebastiaan van Stijn
• bpascard

Notable Changes

• Add buildkit capability for detecting if source policy decisions can be made via session tunnel. #6345
• Enable git signature checks via source policy. #6344
• Fix possible “concurrent map write” panic on policy validation (RC1 regression). #6342
• Fix source policy attributes validation when multiple rules use the same identifier. #6342

Dependency Changes

• github.com/containerd/containerd/api v1.10.0-rc.0 -> v1.10.0
• github.com/containerd/containerd/v2 v2.2.0-rc.1 -> v2.2.0
• github.com/containerd/platforms v1.0.0-rc.1 -> v1.0.0-rc.2
• github.com/vbatts/tar-split v0.12.1 -> v0.12.2

Previous release can be found at v0.26.0-rc1

dockerfile/1.20.0-rc1-labs

Usage

# syntax=docker.io/docker/dockerfile-upstream:1.20.0-rc1-labs

dockerfile/1.20.0-rc1

Usage

# syntax=docker.io/docker/dockerfile-upstream:1.20.0-rc1

Notable changes

• The --security flag for RUN instructions is now generally available. This flag was previously available under the labs channel. #6312
• The --parents flag for COPY instructions is now generally available. This flag was previously available under the labs channel. #6282
• Add support for converting a dockerfile to the LLB contents using a subrequest. Use buildx build --call=convertllb . for this functionality. #6295

v0.26.0-rc1

buildkit 0.26.0-rc1

Welcome to the v0.26.0-rc1 release of buildkit!
This is a pre-release of buildkit

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

Contributors

• Tõnis Tiigi
• CrazyMax
• Akihiro Suda
• Sebastiaan van Stijn
• Jonathan A. Sternberg
• Brian Goff
• Dawei Wei
• Alberto Garcia Hierro
• Damon Holden
• David Karlsson
• Dawei Wei
• Mikhail Dmitrichenko

Notable Changes

• Change how file checksum is calculated when wildcards and include/exclude patterns are involved to better align with how they are calculated in the non-wildcard path. #6238
• LLB Copy operation now allows specifying required paths to be included in the copy. #6229
• Source metadata requests via ResolveSourceMeta, previously available for image sources, can now be performed for Git sources. This can be used to resolve Git commit and tag checksums and also to access the raw commit and tag objects for further verification. #6283
• Source metadata requests via ResolveSourceMeta, previously available for image sources, can now be performed for HTTP sources. This can be used to access artifact checksums, last-modified time etc. #6285 #6298
• Source metadata requests via ResolveSourceMeta can now ask for a signed attestation chain for an image in order to validate it. #6330
• Git sources can now perform verification of GPG or SSH signatures on commits and tags. #6300
• A new type of source policy has been added that supports making policy decisions on the client side via session tunnel. #6276
• Avoid intermediate type wrappers for custom fields in provenance. #6275
• contentutil package now supports moving referrer objects when using CopyChain function. #6336
• Handle duplicate inline cache exporter. #6272
• Fix inline cache used with multiple exporters. #6263
• Fixed race condition between cache and snapshot for the Git source. #6281
• Fixed race condition in HTTP cache key digest computation that could cause duplicate requests and digest mismatch errors. #6292
• Fix fetch by commit for git source when tags change or branch names are updated. #6259
• Fix http connection leak when resolving metadata from http source on non-2xx HTTP status codes. #6313
• Fix regression involving cache export error handling. #6261
• Fix handling of annotated Git tags. The pin of the annotated tag should be the SHA of the tag and not the commit it is pointing to. #6251
• Runc container runtime has been updated to v1.3.3. #6331

Dependency Changes

• github.com/Azure/azure-sdk-for-go/sdk/azcore v1.16.0 -> v1.18.2
• github.com/Azure/azure-sdk-for-go/sdk/azidentity v1.8.0 -> v1.11.0
• github.com/Azure/azure-sdk-for-go/sdk/internal v1.10.0 -> v1.11.2
• github.com/AzureAD/microsoft-authentication-library-for-go v1.3.2 -> v1.4.2
• github.com/Microsoft/hcsshim v0.13.0 -> v0.14.0-rc.1
• github.com/ProtonMail/go-crypto v1.3.0 new
• github.com/aws/aws-sdk-go-v2 v1.30.3 -> v1.38.1
• github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.6.3 -> v1.7.0
• github.com/aws/aws-sdk-go-v2/config v1.27.27 -> v1.31.3
• github.com/aws/aws-sdk-go-v2/credentials v1.17.27 -> v1.18.7
• github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.16.11 -> v1.18.4
• github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.17.8 -> v1.17.10
• github.com/aws/aws-sdk-go-v2/internal/configsources v1.3.15 -> v1.4.4
• github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.6.15 -> v2.7.4
• github.com/aws/aws-sdk-go-v2/internal/ini v1.8.0 -> v1.8.3
• github.com/aws/aws-sdk-go-v2/internal/v4a v1.3.15 -> v1.4.4
• github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.11.3 -> v1.13.0
• github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.3.17 -> v1.8.4
• github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.11.17 -> v1.13.4
• github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.17.15 -> v1.19.4
• github.com/aws/aws-sdk-go-v2/service/s3 v1.58.2 -> v1.87.1
• github.com/aws/aws-sdk-go-v2/service/sso v1.22.4 -> v1.28.2
• github.com/aws/aws-sdk-go-v2/service/ssooidc v1.26.4 -> v1.34.0
• github.com/aws/aws-sdk-go-v2/service/sts v1.30.3 -> v1.38.0
• github.com/aws/smithy-go v1.20.3 -> v1.22.5
• github.com/cenkalti/backoff/v5 v5.0.3 new
• github.com/cloudflare/circl v1.6.0 new
• github.com/containerd/cgroups/v3 v3.0.5 -> v3.1.0
• github.com/containerd/containerd/api v1.9.0 -> v1.10.0-rc.0
• github.com/containerd/containerd/v2 v2.1.4 -> v2.2.0-rc.1
• github.com/containerd/go-cni v1.1.12 -> v1.1.13
• github.com/containerd/nydus-snapshotter v0.15.2 -> v0.15.4
• github.com/containerd/stargz-snapshotter v0.16.3 -> v0.17.0
• github.com/containerd/stargz-snapshotter/estargz v0.16.3 -> v0.17.0
• github.com/containernetworking/plugins v1.7.1 -> v1.8.0
• github.com/coreos/go-systemd/v22 v22.5.0 -> v22.6.0
• github.com/docker/cli v28.4.0 -> v28.5.0
• github.com/fatih/color v1.18.0 new
• github.com/go-logr/logr v1.4.2 -> v1.4.3
• github.com/gofrs/flock v0.12.1 -> v0.13.0
• github.com/golang-jwt/jwt/v5 v5.2.2 -> v5.3.0
• github.com/golang/groupcache 41bb18bfe9da -> 2c02b8208cf8
• github.com/google/pprof 27863c87afa6 -> f64d9cf942d6
• github.com/grpc-ecosystem/grpc-gateway/v2 v2.26.1 -> v2.27.2
• github.com/hanwen/go-fuse/v2 v2.6.3 -> v2.8.0
• github.com/hashicorp/go-retryablehttp v0.7.7 -> v0.7.8
• github.com/hiddeco/sshsig v0.2.0 new
• github.com/klauspost/compress v1.18.0 -> v1.18.1
• github.com/mattn/go-colorable v0.1.14 new
• github.com/moby/policy-helpers bcaa71c99f14 new
• github.com/moby/sys/capability v0.4.0 new
• github.com/opencontainers/runtime-tools 2e043c6bd626 -> 0ea5ed0382a2
• github.com/prometheus/client_golang v1.22.0 -> v1.23.2
• github.com/prometheus/client_model v0.6.1 -> v0.6.2
• github.com/prometheus/common v0.62.0 -> v0.66.1
• github.com/prometheus/procfs v0.15.1 -> v0.16.1
• github.com/secure-systems-lab/go-securesystemslib v0.6.0 -> v0.9.1
• github.com/stretchr/testify v1.10.0 -> v1.11.1
• go.opentelemetry.io/auto/sdk v1.1.0 -> v1.2.1
• go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.60.0 -> v0.61.0
• go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.60.0 -> v0.61.0
• go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 -> v0.61.0
• go.opentelemetry.io/otel v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/metric v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/sdk v1.35.0 -> v1.38.0
• go.opentelemetry.io/otel/sdk/metric v1.35.0 -> v1.38.0
• **go.opentelemetry.io/o...

v0.25.2

Welcome to the v0.25.2 release of buildkit!

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

Contributors

• CrazyMax
• Tõnis Tiigi

Notable Changes

• Update Runc to v1.3.3 #6332

Dependency Changes

This release has no dependency changes

Previous release can be found at v0.25.1