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Draft changelog: Dynamic CI build tool impact #455

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18 changes: 18 additions & 0 deletions changelog/2026-11-04-dynamic-ci-build-tool-impact.mdx
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---
title: "Dynamic CI: Send your build tool's impact"
description: "The Dynamic CI Buildkite plugin can send how much of your codebase a change affects, so Trunk runs broad changes in full."
date: 2026-11-04
category: Dynamic CI
type: new-feature
---

**Dynamic CI can now factor in how much of your codebase a change affects.**

### New features

- **Send your build tool's impact from Buildkite.** If your build tool counts affected packages or similar, pass that count to Dynamic CI plugin v0.1.8 or later. Trunk runs steps in full for broad changes. Export `BUILDKITE_PLUGIN_DYNAMIC_CI_IMPACTS` for counts computed during the build, or set the `impacts` option for values known up front. Send `"all": true` when everything is affected. Bad entries are dropped with a warning, and the build continues. Ask Trunk to turn the signal on and set each step's limit. See the [Buildkite guide](/ci/dynamic-ci/getting-started/buildkite).

### Updates

- **Show verdicts on the GitHub Actions run summary.** Set `enable-annotation: true` on `trunk-io/dynamic-ci@v1` to post each job's recommendation to the run's annotations and job summary. See the [action reference](/ci/dynamic-ci/dynamic-ci-action-reference).
- **Clearer GitHub Actions setup.** The [GitHub Actions guide](/ci/dynamic-ci/getting-started/github-actions) now includes a complete workflow example, the rules every gated job must follow, and how to check your setup.
6 changes: 6 additions & 0 deletions changelog/index.mdx
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### November 2026

<Update label="November 4, 2026" tags={["Dynamic CI"]}>
**[Dynamic CI: Send your build tool's impact](/changelog/2026-11-04-dynamic-ci-build-tool-impact)**

The Dynamic CI Buildkite plugin can send how much of your codebase a change affects, so Trunk runs broad changes in full.
</Update>

<Update label="November 3, 2026" tags={["Code Quality"]}>
**[Code Quality: CLI 1.29.0](/changelog/2026-11-03-code-quality-cli-1-29-0)**

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1 change: 1 addition & 0 deletions docs.json
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{
"group": "November",
"pages": [
"changelog/2026-11-04-dynamic-ci-build-tool-impact",
"changelog/2026-11-03-code-quality-cli-1-29-0"
]
},
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