Dependabot ignore rule are broken

[AlekSi]

🏷️ Discussion Type

Bug

💬 Feature/Topic Area

Dependabot

Discussion Details

"Dependabot commands and options" disappeared from new Dependabot PRs.

More importantly, "@dependabot ignore this major version" now (for a several days, maybe a bit more) ignores the base version, not proposed version:

Bumps xxx from 1.219.0 to 20221215.5.
@dependabot ignore this major version
OK, I won't notify you about version 1.x.x again, unless you re-open this PR.

I used to ignore the proposed version, not the current one. Previously, I used this command, as "Most Recent Ignore Conditions Applied to This Pull Request" shows:

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[ronitgupta138]

This happens because of how Dependabot parses versions: it expects strict SemVer (major.minor.patch).

When a package jumps from SemVer (like 1.219.0) to a date-based or custom CalVer scheme (like 20221215.5), Dependabot's comparison logic fails to calculate the major delta for the new version, so the chat parser falls back to matching the base version (1.x.x).

To work around it, define the ignore rule directly in your .github/dependabot.yml instead of using the chat command:

version: 2
updates:
  - package-ecosystem: "npm"
    directory: "/"
    schedule:
      interval: "weekly"
    ignore:
      - dependency-name: "xxx"
        versions: [">= 20220000"]

This ignores the new CalVer range directly without relying on the SemVer chat parser.

[jamalkamaladdin]

Reopen your PR to undo its comment-based ignore rule.
As a workaround, add ignore under your existing ecosystem entry in .github/dependabot.yml.
Specify dependency-name and explicit versions using your package manager's range syntax.
Version-range configuration.