MISC: Started v3.

.github/workflows/main.yml

@@ -0,0 +1,10 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  ci:
+    uses: silverstripe/gha-ci/.github/workflows/ci.yml@v1

README.md

@@ -1,5 +1,11 @@
 # GridField rich filter header
 
+[![Latest Stable Version](http://poser.pugx.org/silverstripe-terraformers/gridfield-rich-filter-header/v)](https://packagist.org/packages/silverstripe-terraformers/gridfield-rich-filter-header)
+[![Total Downloads](http://poser.pugx.org/silverstripe-terraformers/gridfield-rich-filter-header/downloads)](https://packagist.org/packages/silverstripe-terraformers/gridfield-rich-filter-header)
+[![Latest Unstable Version](http://poser.pugx.org/silverstripe-terraformers/gridfield-rich-filter-header/v/unstable)](https://packagist.org/packages/silverstripe-terraformers/gridfield-rich-filter-header)
+[![License](http://poser.pugx.org/silverstripe-terraformers/gridfield-rich-filter-header/license)](https://packagist.org/packages/silverstripe-terraformers/gridfield-rich-filter-header)
+[![PHP Version Require](http://poser.pugx.org/silverstripe-terraformers/gridfield-rich-filter-header/require/php)](https://packagist.org/packages/silverstripe-terraformers/gridfield-rich-filter-header)
+
 This `GridField` component is intended to replace the default `GridFieldFilterHeader` component and provide rich functionality not available in the original.
 
 Here is a brief comparison of these components:

composer.json

@@ -19,11 +19,18 @@
     "issues": "https://github.com/silverstripe-terraformers/gridfield-rich-filter-header/issues"
   },
   "require": {
-    "silverstripe/vendor-plugin": "^1.0",
-    "silverstripe/framework": "^4"
+    "php": "^8.1",
+    "silverstripe/cms": "^5"
   },
   "require-dev": {
-    "phpunit/phpunit": "^5.7"
+    "silverstripe/recipe-testing": "^3",
+    "squizlabs/php_codesniffer": "^3"
+  },
+  "extra": {
+    "branch-alias": {
+      "dev-master": "3.x-dev",
+      "dev-2": "2.x-dev"
+    }
   },
   "autoload": {
     "psr-4": {