Version 12.0.0

Major

• Updated Node.js support to ^12.20 || >= 14.13.
• Updated dev dependencies, some of which require newer Node.js versions than previously supported.
• The tests are now ESM in .mjs files instead of CJS in .js files.
• Replaced the the package.json exports field public subpath folder mapping (deprecated by Node.js) with a subpath pattern. Deep require paths must now include the .js file extension.

Minor

• Added a package sideEffects field.

Patch

• Updated dependencies.
• Lint fixes for the updated Prettier version.
• Updated GitHub Actions CI config:
  • Updated the tested Node.js versions to v12, v14, v16.
  • Updated actions/checkout to v2.
  • Updated actions/setup-node to v2.
  • Simplify config with the npm install-test command.
  • Don’t specify the CI environment variable as it’s set by default.
• Removed npm-debug.log from the .gitignore file as npm v4.2.0+ doesn’t create it in the current working directory.
• Updated the EditorConfig URL.
• Updated the package keywords field.
• More specific package main field path.
• Simplified JSDoc related package scripts now that jsdoc-md v10 automatically generates a Prettier formatted readme.
• Added a package test:jsdoc script that checks the readme API docs are up to date with the source JSDoc.
• Refactored private constants from exports of a single module to individual modules.
• Fixed test name and comment typos.
• Updated external URLs in docs.
• Prettier format for a JSDoc code example.
• Updated a GraphQLUpload code example to use @graphql-tools/schema instead of graphql-tools.
• Removed from the readme the notice that the package was previously published as apollo-upload-server.
• Simplified the readme “Setup” and “Support” sections.