Reducing Noise by Grouping Dependabot Updates
Optimize your CI/CD process with monthly batch updates.
1The noise problem with Dependabot
Teams managing active GitHub repositories struggle with numerous single-dependency update requests from Dependabot. In Microsoft's GCToolkit project, 92 out of 578 commits were Dependabot updates. This creates significant operational overhead with constant review, merge, and CI cycles.
2GCToolkit's previous configuration
The project's old configuration featured daily checks and a limit of 10 open pull requests. This setting created separate requests for each dependency. Instead of GitHub's recommended weekly schedule, daily checks were chosen. Even a few GitHub Action dependencies could generate new requests every weekday.
3Solution: Monthly batch updates
The GCToolkit team implemented three key changes: 1) Grouped all updates into single pull requests, 2) Changed check frequency to monthly, 3) Expanded coverage to all ecosystems (GitHub Actions and Maven). The 'monthly-batch' group uses '*' pattern to include all dependencies.
4Technical details of grouping
The grouping feature combines multiple dependency updates into one pull request. The group name (e.g., 'monthly-batch') appears in the pull request title. Pattern lists determine which dependencies belong to the group. A February 2026 update enabled grouping same-dependency updates across multiple directories in monorepos.
5Optimizing the schedule
Monthly instead of daily checks provide a predictable rhythm for mature libraries. This change enables scheduled monthly batch updates instead of constant trickles throughout the month. Weekly or specific day/time settings are also available for less urgent updates.
6Covering all ecosystems
The original configuration only covered GitHub Actions, missing Maven dependencies for this Java project. The updated config added a second 'updates' entry for Maven. Each ecosystem maintains its own schedule and group.
7Security updates exception
This optimization only affects version updates, not security updates. Dependabot security updates are raised immediately when vulnerabilities with fixes are disclosed. The design reduces noise without delaying critical security patches.
8Advanced grouping for monorepos
The 2026 update introduced 'directories' (plural) feature for monorepos. Using glob patterns like '/apps/*', similar updates across dozens of directories can be combined into single pull requests. This feature was specifically designed for large-scale projects.
9Grouping strategies
Projects can implement different grouping strategies based on needs. Testing libraries and production dependencies can be in separate groups. The 'group-by: dependency-name' option combines different versions of the same dependency. This flexibility ensures related updates travel together while keeping unrelated ones separate.
10Impact on CI/CD efficiency
This optimization significantly improves CI/CD efficiency for projects like GCToolkit. A single monthly batch update eliminates the operational overhead of dozens of individual requests. Teams can focus on feature development rather than routine maintenance. Separate processing of security updates ensures critical patches aren't delayed.
Original article: The GitHub Blog — Dependabot Güncellemelerini Gruplayarak Gürültüyü Azaltma