Is it possible to select a specific branch against which Dependabot should open PRs?

Question

Like the title says, on GitHub is it possible to manually select a branch against which Dependabot should open its Pull Requests?

From what I can see, it opens PR against whichever branch is set to be the main one in the repo settings, but it is possible to select another one?

Answer 1

According to the documentation, this is possible with the option target-branch. For example, if you want to have the updates from the branch develop, you can write the following configuration for the python pip environment:

version: 2
updates:
  - package-ecosystem: "pip"
    directory: "/"
    schedule:
      interval: "daily"
    # Raise pull requests for version updates
    # to pip against the `develop` branch
    target-branch: "develop"
    # Labels on pull requests for version updates only
    labels:
      - "pip dependencies"