Previously, if you were using Dependabot on a monorepo that wasn't using Yarn workspaces, each package had to be added to Dependabot individually. Then, when there were updates, Dependabot would create an individual PR for each package in the monorepo. That meant extra setup, and lots of near-identical PRs to review.
We think the above behaviour is a big improvement, but if you prefer to old behaviour of receiving separate PRs to each package in your monorepo you can, of course, still add each package to Dependabot individually.
Note: Dependabot doesn't support linking local/unpublished dependencies that
lerna bootstrap. You can convert local dependencies to use
imports instead which are supported by Depenedabot with