This action iterates through all PRs that are part of a release and adds a comment to each of them containing information about the release.

Required The GITHUB_TOKEN secret.

List of the IDs of the commented PRs

This action runs only when triggered by a release event and a published action.

name: Comment released PRs

on:
  release:
    types:
      - published

jobs:
  comment:
    name: Comment released PRs
    runs-on: ubuntu-latest
    steps:
      - name: Comment released PRs
        uses: rdlf0/comment-released-prs-action@v1
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}

The posted comment will look like this:

The scripts and documentation in this project are released under the MIT License