diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 73d94bf..0927f16 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,7 @@
 name: "Continuous Integration"
 
 on: 
-  - pull_request
-  - push
+  push:
 
 jobs:
 
@@ -12,20 +11,22 @@ jobs:
       matrix:
         include:
           - operating-system: 'ubuntu-latest'
-            php-version: '8.2'
-          - operating-system: 'ubuntu-latest'
+            silverstripe-version: '5.0'
             php-version: '8.1'
           - operating-system: 'ubuntu-latest'
+            silverstripe-version: '4.0'
             php-version: '8.0'
           - operating-system: 'ubuntu-latest'
+            silverstripe-version: '4.0'
             php-version: '7.4'
   
-    name: PHP ${{ matrix.php-version }}
+    name: SS ${{ matrix.silverstripe-version }}, PHP ${{ matrix.php-version }}
     runs-on: ${{ matrix.operating-system }}
     steps:
       - uses: actions/checkout@v3
       - uses: php-actions/composer@v6
         with:
+          command: update --with silverstripe/framework:^${{ matrix.silverstripe-version }}
           php_version: ${{ matrix.php-version }}
           php_extensions: intl
       - run: |
diff --git a/.github/workflows/t.yml b/.github/workflows/t.yml
index eb31e9a..87fa1a2 100644
--- a/.github/workflows/t.yml
+++ b/.github/workflows/t.yml
@@ -15,6 +15,8 @@ jobs:
       - uses: actions/checkout@v3
       - uses: php-actions/composer@v6
         with:
+          command: update --with silverstripe/framework:^5.0
+          php_version: 8.1
           php_extensions: xdebug intl
       - name: Generate Code Coverage
         run: |
diff --git a/composer.json b/composer.json
index 6b582fa..02a1eb5 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
 	}],
 	"require": {
 		"php": "^7.4||^8.0",
-		"silverstripe/cms": "^4.0"
+		"silverstripe/cms": "^4.0||^5.0"
 	},
 	"extra": {
 		"expose": [
@@ -25,9 +25,9 @@
 	},
 	"require-dev": {
 		"phpunit/phpunit": "^9.5",
-		"silverstripe/sqlite3": "^2.2",
-		"logicbrush/metrics": "^0.2.0",
-		"cmrcx/phptidy": "^3.3"
+		"silverstripe/sqlite3": "*",
+		"logicbrush/metrics": "*",
+		"cmrcx/phptidy": "*"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/public/assets/.gitkeep b/public/assets/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/src/Model/RollupPage.php b/src/Model/RollupPage.php
index b0e5085..e9a7d10 100644
--- a/src/Model/RollupPage.php
+++ b/src/Model/RollupPage.php
@@ -59,6 +59,7 @@ public function getCMSFields() {
 		$fields = parent::getCMSFields();
 
 		$fields->insertBefore(
+			'Content',
 			OptionsetField::create(
 				'ShowLinksOnly',
 				'Rollup Display',
@@ -67,8 +68,7 @@ public function getCMSFields() {
 					2 => 'Show children in tabs',
 					1 => 'Show children as links',
 				]
-			),
-			'Content' );
+			) );
 		$contentField = $fields->dataFieldByName( 'Content' );
 		$contentField->setTitle( 'Introduction' );
 
diff --git a/tests/unit/Controllers/RollupPageControllerTest.php b/tests/unit/Controllers/RollupPageControllerTest.php
index a97a0d8..64171ad 100644
--- a/tests/unit/Controllers/RollupPageControllerTest.php
+++ b/tests/unit/Controllers/RollupPageControllerTest.php
@@ -42,10 +42,10 @@ public function testDisplayingRollupPageInline() {
 		$rollupPage->Content = '<p>Rollup</p>';
 		$rollupPage->ShowLinksOnly = RollupPage::DISPLAY_INLINE;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$child1 = $this->addChildPage( $rollupPage, 'Child 1' );
-		$child1->publish( 'Stage', 'Live' );
+		$child1->publishSingle();
 
 		$response = $this->get( $rollupPage->Link() );
 		$this->assertEquals( 200, $response->getStatusCode() );
@@ -66,10 +66,10 @@ public function testDisplayingRollupPageAsTabs() {
 		$rollupPage->Content = '<p>Rollup</p>';
 		$rollupPage->ShowLinksOnly = RollupPage::DISPLAY_TABS;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$child1 = $this->addChildPage( $rollupPage, 'Child 1' );
-		$child1->publish( 'Stage', 'Live' );
+		$child1->publishSingle();
 
 		$response = $this->get( $rollupPage->Link() );
 		$this->assertEquals( 200, $response->getStatusCode() );
@@ -90,13 +90,13 @@ public function testBlockDefaultRollupPageCSS() {
 		$rollupPage->Title = 'Rollup Page';
 		$rollupPage->Content = '<p>Rollup</p>';
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$response = $this->get( $rollupPage->Link() );
 
 		$this->assertStringContainsString( 'css/rolluppage.css', $response->getBody() );
 
-		RollupPage::config()->update( 'block_default_rollup_page_css', true );
+		RollupPage::config()->set( 'block_default_rollup_page_css', true );
 
 		$response = $this->get( $rollupPage->Link() );
 
@@ -113,13 +113,13 @@ public function testBlockDefaultRollupPageJavascript() {
 		$rollupPage->Title = 'Rollup Page';
 		$rollupPage->Content = '<p>Rollup</p>';
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$response = $this->get( $rollupPage->Link() );
 
 		$this->assertStringContainsString( 'javascript/rolluppage.js', $response->getBody() );
 
-		RollupPage::config()->update( 'block_default_rollup_page_js', true );
+		RollupPage::config()->set( 'block_default_rollup_page_js', true );
 
 		$response = $this->get( $rollupPage->Link() );
 
diff --git a/tests/unit/Model/RollupPageTest.php b/tests/unit/Model/RollupPageTest.php
index 176663e..75d2133 100644
--- a/tests/unit/Model/RollupPageTest.php
+++ b/tests/unit/Model/RollupPageTest.php
@@ -46,7 +46,7 @@ public function testChildren() {
 		$rollupPage = RollupPage::create();
 		$rollupPage->ShowLinksOnly = 1;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$this->assertEquals( 0, $rollupPage->Children()->count() );
 
@@ -54,37 +54,37 @@ public function testChildren() {
 		$page1->Content = '<p>Page 1</p>';
 		$page1->ParentID = $rollupPage->ID;
 		$page1->write();
-		$page1->publish( 'Stage', 'Live' );
+		$page1->publishSingle();
 
 		$page2 = Page::create();
 		$page2->Content = '';
 		$page2->ParentID = $rollupPage->ID;
 		$page2->write();
-		$page2->publish( 'Stage', 'Live' );
+		$page2->publishSingle();
 
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$this->assertEquals( 1, $rollupPage->Children()->count() );
 
 		$page2->Content = '<p>Page 2</p>';
 		$page2->write();
-		$page2->publish( 'Stage', 'Live' );
+		$page2->publishSingle();
 
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$this->assertEquals( 2, $rollupPage->Children()->count() );
 
 		$rollupPage->ShowLinksOnly = 2;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$this->assertEquals( 0, $rollupPage->Children()->count() );
 
 		$rollupPage->ShowLinksOnly = 0;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$this->assertEquals( 0, $rollupPage->Children()->count() );
 	}
@@ -120,7 +120,7 @@ public function testContent() {
 		$rollupPage->Title = 'Rollup Page';
 		$rollupPage->ShowLinksOnly = 0;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 
 		$page1 = Page::create();
@@ -128,14 +128,14 @@ public function testContent() {
 		$page1->Content = '<p>Page 1 content</p>';
 		$page1->ParentID = $rollupPage->ID;
 		$page1->write();
-		$page1->publish( 'Stage', 'Live' );
+		$page1->publishSingle();
 
 		$page2 = FakePage::create();
 		$page2->Title = 'Page 2';
 		$page2->Content = '<p>Page 2 content</p>';
 		$page2->ParentID = $rollupPage->ID;
 		$page2->write();
-		$page2->publish( 'Stage', 'Live' );
+		$page2->publishSingle();
 
 		$this->assertStringContainsString( '<p>Page 1 content</p>', $rollupPage->Content() );
 		$this->assertStringContainsString( '<p>Page 2 content</p>', $rollupPage->Content() );
@@ -145,13 +145,13 @@ public function testContent() {
 
 		$rollupPage->ShowLinksOnly = 1;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$page1->write();
-		$page1->publish( 'Stage', 'Live' );
+		$page1->publishSingle();
 
 		$page2->write();
-		$page2->publish( 'Stage', 'Live' );
+		$page2->publishSingle();
 
 		$this->assertStringNotContainsString( '<p>Page 1 content</p>', $rollupPage->Content() );
 		$this->assertStringContainsString( '<nav class="rollup-page-navigation-list">', $rollupPage->Content() );
@@ -162,17 +162,17 @@ public function testContent() {
 
 		$rollupPage->ShowLinksOnly = 2;
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$page1->write();
-		$page1->publish( 'Stage', 'Live' );
+		$page1->publishSingle();
 
 		$page2->Content = '';
 		$page2->write();
-		$page2->publish( 'Stage', 'Live' );
+		$page2->publishSingle();
 
 		$rollupPage->write();
-		$rollupPage->publish( 'Stage', 'Live' );
+		$rollupPage->publishSingle();
 
 		$this->assertStringContainsString( '<p>Page 1 content</p>', $rollupPage->Content() );
 		$this->assertStringContainsString( '<nav class="rollup-page-navigation-tabs">', $rollupPage->Content() );
diff --git a/tests/unit/Model/WithRollupSupportExtensionTest.php b/tests/unit/Model/WithRollupSupportExtensionTest.php
index be99631..fdb69c6 100644
--- a/tests/unit/Model/WithRollupSupportExtensionTest.php
+++ b/tests/unit/Model/WithRollupSupportExtensionTest.php
@@ -43,21 +43,21 @@ public function testLink() {
 		$page1->ParentID = $rollupPage->ID;
 		$page1->write();
 
-		$this->assertEquals( '/rollup-page/page-1/', $page1->Link() );
+		$this->assertContains( $page1->Link(), ['/rollup-page/page-1/', '/rollup-page/page-1'] );
 
 		$rollupPage->ShowLinksOnly = 0;
 		$rollupPage->write();
 		$page1->ParentID = $rollupPage->ID;
 		$page1->write();
 
-		$this->assertEquals( '/rollup-page/#page-1', $page1->Link() );
+		$this->assertContains( $page1->Link(), ['/rollup-page/#page-1', '/rollup-page#page-1'] );
 
 		$rollupPage->ShowLinksOnly = 2;
 		$rollupPage->write();
 		$page1->ParentID = $rollupPage->ID;
 		$page1->write();
 
-		$this->assertEquals( '/rollup-page/#page-1', $page1->Link() );
+		$this->assertContains( $page1->Link(), ['/rollup-page/#page-1', '/rollup-page#page-1'] );
 	}