chore: drop support for old Node.js versions (#898)

BREAKING CHANGE: drop support for old Node.js versions

Closes #616

Author: Belco90

.github/workflows/ci.yml

@@ -5,7 +5,7 @@ on:
   merge_group:
 
 concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
+  group: '${{ github.workflow }}-${{ github.ref }}'
   cancel-in-progress: true
 
 jobs:

.github/workflows/verifications.yml

@@ -33,8 +33,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        # The .x indicates "the most recent one"
-        node: [19.x, 18.x, 17.x, 16.x, 14.x, 14.17.0, 12.x, 12.22.0]
+        node: [18.18, 20.9, 21.1]
         eslint: [7.5, 7, 8]
     steps:
       - name: Checkout

.nvmrc

@@ -1 +1 @@
-16
+20.12

README.md

@@ -22,19 +22,19 @@
 [![PRs Welcome][pr-badge]][pr-url]
 [![All Contributors][all-contributors-badge]](#contributors-)
 
-## Installation
+## Prerequisites
 
-You'll first need to install [ESLint](https://eslint.org):
+To use this plugin, you must have [Node.js](https://nodejs.org/en/) (`^18.18.0`, `^20.9.0`, or `>=21.1.0`) installed.
 
-```shell
-$ npm install --save-dev eslint
-# or
-$ yarn add --dev eslint
-```
+## Installation
+
+You'll first need to [install ESLint](https://eslint.org/docs/latest/use/getting-started).
 
 Next, install `eslint-plugin-testing-library`:
 
 ```shell
+$ pnpm add --save-dev eslint-plugin-testing-library
+# or
 $ npm install --save-dev eslint-plugin-testing-library
 # or
 $ yarn add --dev eslint-plugin-testing-library
@@ -49,6 +49,7 @@ You can find detailed guides for migrating `eslint-plugin-testing-library` in th
 - [Migration guide for v4](docs/migration-guides/v4.md)
 - [Migration guide for v5](docs/migration-guides/v5.md)
 - [Migration guide for v6](docs/migration-guides/v6.md)
+- [Migration guide for v7](docs/migration-guides/v7.md)
 
 ## Usage
 

docs/migration-guides/v7.md

@@ -0,0 +1,11 @@
+# Guide: migrating to v7
+
+If you are not on v6 yet, we recommend first following the [v6 migration guide](docs/migration-guides/v6.md).
+
+## Overview
+
+- _(Breaking)_ Supported versions of Node.js have been updated to `^18.18.0`, `^20.9.0`, or `>=21.1.0`, matching ESLint.
+
+## Steps to upgrade
+
+- Make sure you are using a supported version of Node.js

package.json

@@ -92,7 +92,7 @@
 		"eslint": "^7.5.0 || ^8.0.0"
 	},
 	"engines": {
-		"node": "^12.22.0 || ^14.17.0 || >=16.0.0",
+		"node": "^18.18.0 || ^20.9.0 || >=21.1.0",
 		"npm": ">=6"
 	}
 }