v6.40.9

v6.40.9 (2025-07-23)

Changed

• Update docker compose to 2.38.2 and docker buildx to 0.26.1 #1531 (scadu)

Internal

• Update to use OIDC session tokens on AWS role assumption #1526 (duckalini)

Full Changelog: v6.40.8...v6.40.9

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.9/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.8

v6.40.8 (2025-07-22)

Changed

• Update buildkite-agent to v3.103.0 #1528 (renovate[bot])

Internal

• Add script for generating changelog #1516 (scadu)
• Fix Renovate placeholders references #1525 (scadu)

Dependencies

• chore(deps): bump golang.org/x/sys from 0.33.0 to 0.34.0 #1523 (dependabot[bot])

Agent Changelog

v3.103.0 (2025-07-22)

Full Changelog

Added

• Configurable kubernetes-bootstrap connection timeout #3398 (@zhming0)

Changed

• Exit with a specific code when the Job being Acquired is Locked #3403 (@CerealBoy)
• Rename local -> repository hooks, global -> agent hooks #3401 (@moskyb)
• Use BUILDKITE_PIPELINE_DEFAULT_BRANCH as a default git diff base #3396 (@DrJosh9000)
• apply-if-changed now enabled by default - if_changed improvements #3387 (@DrJosh9000)

Internal

• Update to use OIDC session tokens on AWS role assumption #3395 (@duckalini)
• Annotate with lint findings #3404 (@DrJosh9000)
• Lint fixes #3383, #3399 (@DrJosh9000)

Dependencies

• build(deps): bump the cloud-providers group with 5 updates #3406 (@dependabot[bot])
• build(deps): bump the container-images group across 6 directories with 2 updates #3405 (@dependabot[bot])
• build(deps): bump the golang-x group with 4 updates #3391 (@dependabot[bot])
• build(deps): bump google.golang.org/api from 0.240.0 to 0.241.0 in the cloud-providers group #3389 (@dependabot[bot])
• build(deps): bump the container-images group across 6 directories with 3 updates #3390 (@dependabot[bot])
• build(deps): bump gopkg.in/DataDog/dd-trace-go.v1 from 1.74.2 to 1.74.3 #3388 (@dependabot[bot])

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.8/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.7

v6.40.7 (2025-07-11)

Changed

• Update buildkite-agent to v3.102.0 #1511 (renovate[bot])

Added

• Add support for InstanceBuffer #1431 (blackliner)

Internal

• Update buildkite plugin docker-compose to v2.6.0 #1505 (renovate[bot])
• Update golang docker tag to v1.24 #1506 (renovate[bot])
• Update buildkite plugin aws-assume-role-with-web-identity to v1.4.0 #1503 (renovate[bot])
• Update dependency go to v1.24.4 #1502 (renovate[bot])
• Migrate renovate config #1508 (renovate[bot])
• Enforces IMDSv2 support on the running instance being provisioned by Packer #1458 (liangfu)
• Renovate: add config for buildkite-agent #1507 (scadu)
• Configure Renovate #1501 (renovate[bot])

Agent Changelog

v3.102.0 (2025-07-09)

Full Changelog

Added

• Add disconnect-after-uptime flag to set a max lifetime for agents #3370 (@nosammai)

Changed

• Exit with same code in acquire-job mode #3376 (@DrJosh9000)

Fixed

• Fix git mirrors + refspec #3381 (@sj26)
• Print valid JSON in log output #3374 (@ChrisBr)
• Adding a reference in our docs the limit of an annotation's contexts #3261 (@lizrabuya)
• docs redactor clarify multi-secret JSON usage and limit #3343 (@ivannalisetska)

Internal

• Update homebrew formula location #3375 (@sj26)

Dependencies

• build(deps): bump the container-images group across 6 directories with 2 updates #3379 (@dependabot[bot])
• build(deps): bump google.golang.org/api from 0.239.0 to 0.240.0 in the cloud-providers group #3377 (@dependabot[bot])
• build(deps): bump the container-images group across 7 directories with 3 updates #3378 (@dependabot[bot])

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.7/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.6

v6.40.6 (2025-07-03)

Full Changelog

Changed

• Update agent to v3.101.0 #1499 (scadu)

Agent Changelog

v3.101.0 (2025-07-01)

Full Changelog

Added

• Add support for http/protobuf transport for OTLP #3366 (@catkins)

Fixed

• Tweak apply-if-changed flag and usage string #3367 (@DrJosh9000)
• Gather changed files list once #3368 (@DrJosh9000)
• if_changed fixes: support older Git versions, adhere to skip string limit #3372 (@DrJosh9000)
• Self-execute the path from os.Executable in more places #3338 (@DrJosh9000)

Dependencies

• build(deps): bump the otel group with 9 updates #3362 (@dependabot[bot])
• build(deps): bump the cloud-providers group with 2 updates #3363 (@dependabot[bot])
• build(deps): bump the container-images group across 6 directories with 2 updates #3364 (@dependabot[bot])
• build(deps): bump gopkg.in/DataDog/dd-trace-go.v1 from 1.74.0 to 1.74.2 #3365 (@dependabot[bot])
• build(deps): bump github.com/go-viper/mapstructure/v2 from 2.2.1 to 2.3.0 #3371 (@dependabot[bot])

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.6/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.5

What's Changed

Added

• Allow terminating EC2 when no enough disk space available by @scadu in #1494

Internal

• Add new parameters to labeled groups by @scadu in #1497

Full Changelog: v6.40.4...v6.40.5

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.5/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.4

v6.40.4 (2025-06-30)

Full Changelog

Changed

• Update agent v3.98.1 to v3.100.1 #1495 (@catkins)

Agent Changelog

v3.100.1 (2025-06-25)

Full Changelog

Fixed

• Fix regression in pipeline upload with no-interpolation #3359 (@DrJosh9000)

Internal

• Avoid goroutine failing after test #3356 (@DrJosh9000)

Dependencies

• build(deps): bump github.com/buildkite/shellwords from 0.0.0-20180315084142-c3f497d1e000 to 1.0.0 #3352 (@dependabot[bot])
• build(deps): bump github.com/go-chi/chi/v5 from 5.2.1 to 5.2.2 #3353 (@dependabot[bot])
• build(deps): bump the container-images group across 6 directories with 2 updates #3354 (@dependabot[bot])
• build(deps): bump the cloud-providers group with 5 updates #3355 (@dependabot[bot])

v3.100.0 (2025-06-23)

Full Changelog

Fixed

• PS-794: fix vendored plugin path ending with slash breaking envvar names #3346 (@zhming0)

Added

• [PIPE-1021] Propagate parent OTel trace/span from backend if provided #3348 (@catkins)

v3.99.0 (2025-06-20)

Full Changelog

Fixed

• Fix AquireJob to return early and trigger a sentinal error for rejection #3349 (@wolfeidau)
• Upload all pipelines present in the input #3347 (@DrJosh9000)
• Add if_changed processing to pipeline upload #3226 (@DrJosh9000)

[!IMPORTANT]
This includes a fix for a regression agent behavior, AcquireJob which no longer reports "non eligible" jobs with a exit code 27.

v3.98.2 (2025-06-17)

Full Changelog

Fixed

• Fix PR ref retry logic #3339 (@moskyb)
• Add stack_error signal reason #3332 (@moskyb)
• Better helptext #3334 (@moskyb)
• Update CLI cancel_signal arg description #3325 (@petetomasik)

Internal

• Dependency updates #3342 #3341 #3340 #3336 #3337 #3335 (@dependabot[bot])

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.4/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.3

What's Changed

• Update EC2 README after AWS section change in Docs by @karensawrey in #1489
• Add link from build badge in README by @sj26 in #1490
• chore: add cfn-lint to the pipeline by @scadu in #1491
• feat: pave road to resource limit control by @scadu in #1481
• chore: update agent-scaler to 1.9.5 by default by @scadu in #1492

Full Changelog: v6.40.2...v6.40.3

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.3/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.2

What's Changed

• fix: update agent-scaler to 1.9.4 by @scadu in #1487

Full Changelog: v6.40.1...v6.40.2

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.2/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.1

What's Changed

• fix: correct reference to Elastic CI Mode toggle by @scadu in #1485

Full Changelog: v6.40.0...v6.40.1

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.1/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):

v6.40.0

⚠️ In this release, Elastic CI Mode toggle was not active.
We recommend using v6.40.1 instead if you are interested in testing out experimental mode in the agent-scaler. ⚠️

---

What's Changed

• feat: add graceful scale-in with experimental Elastic CI Mode by @scadu in #1475

Full Changelog: v6.39.0...v6.40.0

Upgrading

Perform a CloudFormation stack update with the following URL:
https://s3.amazonaws.com/buildkite-aws-stack/v6.40.0/aws-stack.yml

If you want to launch a new stack, you can use this link (make sure not to use your production AWS account, create a new one for CI):