What is Dependabot security updates?

Security updates is the feature specifically focused on fixing known vulnerabilities: when GitHub's security advisory database identifies a vulnerability affecting a version range your repository depends on, Dependabot automatically opens a pull request bumping that specific dependency to a patched, non-vulnerable version.

flowchart LR
    A[Vulnerability disclosed in GitHub Advisory Database] --> B[Dependabot checks repo's dependency graph]
    B --> C{Repo uses the vulnerable version range?}
    C -->|Yes| D[Dependabot alert raised]
    D --> E[Pull request opened with the patched version]

Unlike version updates, security updates can be enabled with minimal configuration (often just a toggle in repository security settings), since the intent — fix known vulnerabilities promptly — is universally desirable in a way routine version bumping schedules aren't, making it a much lower-friction default to turn on broadly.

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