diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 000000000..5123e5211
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,107 @@
+name: Test
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Hugo
+        uses: peaceiris/actions-hugo@v2
+        with:
+          hugo-version: 0.163.3
+          extended: true
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Load documentation content
+        run: make prepare
+
+      - name: Build site
+        run: make production-build
+
+      - name: Upload build output
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: build-output
+          path: public/
+          retention-days: 5
+
+  test:
+    runs-on: ubuntu-latest
+    needs: build
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Hugo
+        uses: peaceiris/actions-hugo@v2
+        with:
+          hugo-version: 0.163.3
+          extended: true
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Install Playwright browsers
+        run: npx playwright install --with-deps chromium
+
+      - name: Load documentation content
+        run: make prepare
+
+      - name: Run E2E tests
+        run: npm run test:e2e
+
+      - name: Upload test results
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          name: playwright-report
+          path: playwright-report/
+          retention-days: 7
+
+  lint:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Check for trailing whitespace
+        run: |
+          if grep -r '[[:space:]]$' --include='*.md' --include='*.toml' --include='*.yaml' --include='*.yml' .; then
+            echo "❌ Found trailing whitespace"
+            exit 1
+          fi
+          echo "✅ No trailing whitespace"
+
+      - name: Validate YAML files
+        run: |
+          for file in .github/workflows/*.yml; do
+            echo "Checking $file..."
+            if ! python3 -c "import yaml; yaml.safe_load(open('$file'))" 2>/dev/null; then
+              echo "❌ Invalid YAML: $file"
+              exit 1
+            fi
+          done
+          echo "✅ All YAML files valid"
diff --git a/.gitignore b/.gitignore
index c23fd50ca..b2edc058e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,8 +8,9 @@ node_modules/
 public*/
 resources/
 
-# Content from goharbor/harbor repo
+# Content from goharbor/harbor repo (generated at build time)
 content/docs/
+content/cli-docs/
 generated/
 
 # Link checker artifacts
@@ -46,3 +47,8 @@ Thumbs.db
 *.un~
 .idea/
 .hugo_build.lock
+
+# Playwright test artifacts #
+######################
+test-results/
+playwright-report/
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 000000000..8aaf841e4
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,29 @@
+FROM debian:bookworm-slim
+
+# Install dependencies
+RUN apt-get update && apt-get install -y \
+    wget \
+    ca-certificates \
+    nodejs \
+    npm && \
+    rm -rf /var/lib/apt/lists/*
+
+# Install Hugo 0.163.3 extended
+RUN wget -q https://github.com/gohugoio/hugo/releases/download/v0.163.3/hugo_extended_0.163.3_linux-amd64.tar.gz && \
+    tar xzf hugo_extended_0.163.3_linux-amd64.tar.gz -C /usr/local/bin && \
+    rm hugo_extended_0.163.3_linux-amd64.tar.gz && \
+    hugo version
+
+WORKDIR /site
+
+# Copy project files
+COPY . /site/
+
+# Install npm dependencies
+RUN npm install
+
+# Expose Hugo server port
+EXPOSE 1313
+
+# Default command: run Hugo server
+CMD ["hugo", "server", "--bind", "0.0.0.0", "--buildDrafts", "--buildFuture", "--disableFastRender"]
diff --git a/Makefile b/Makefile
index 62e4e6dee..b072524e1 100644
--- a/Makefile
+++ b/Makefile
@@ -38,3 +38,9 @@ check-internal-links: clean build link-checker-setup run-checker
 
 check-all-links: clean build link-checker-setup
 	bin/htmltest --conf .htmltest.external.yml
+
+test:
+	npm run test:e2e
+
+test-ui:
+	npm run test:e2e:ui
diff --git a/README.md b/README.md
index 92c13fe5b..90d2e539a 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,28 @@ make serve
 
 This starts up the local Hugo server on http://localhost:1313. As you make changes, the site refreshes automatically in your browser.
 
+## Testing
+
+### Running E2E Tests
+
+The website includes Playwright E2E tests that validate rendering and functionality:
+
+```sh
+make test
+```
+
+To run tests in interactive UI mode:
+
+```sh
+make test-ui
+```
+
+Tests are located in the [`e2e/`](./e2e) directory and validate:
+- Admonition shortcodes render correctly
+- Custom output formats (e.g., `_redirects` for Netlify)
+- CSS pipeline and styling
+- Site configuration changes
+
 ## Checking links
 
 To run the link checker for the Harbor website:
diff --git a/config.toml b/config.toml
index b00764458..e7f989324 100644
--- a/config.toml
+++ b/config.toml
@@ -1,6 +1,6 @@
 title = "Harbor"
 baseURL = "https://goharbor.io"
-disableKinds = ["taxonomy", "taxonomyTerm"]
+disableKinds = ["taxonomy", "term"]
 ignoreFiles = ["README.md"]
 
 [params]
@@ -163,7 +163,7 @@ weight = 4
 home = [ "HTML", "REDIRECTS" ]
 
 [mediaTypes."text/netlify"]
-delimiter = ""
+suffixes = []
 
 [outputFormats.REDIRECTS]
 mediaType = "text/netlify"
diff --git a/e2e/breaking-changes.spec.ts b/e2e/breaking-changes.spec.ts
new file mode 100644
index 000000000..9c889a931
--- /dev/null
+++ b/e2e/breaking-changes.spec.ts
@@ -0,0 +1,83 @@
+import { test, expect } from '@playwright/test';
+import * as fs from 'fs';
+import * as path from 'path';
+
+test.describe('Hugo breaking changes are fixed', () => {
+  test('admonition shortcodes render HTML correctly (markdownify fix)', async ({ page }) => {
+    // Use a docs page known to have admonitions
+    await page.goto('/docs/2.1.0/administration/configuring-replication/');
+
+    // Check that admonition elements exist
+    const admonitions = page.locator('.admonition');
+    await expect(admonitions).not.toHaveCount(0);
+
+    // Verify content is rendered, not raw markdown
+    const firstAdmonition = admonitions.first().locator('.content');
+    const innerHTML = await firstAdmonition.innerHTML();
+
+    // If markdownify failed, we'd see raw markdown syntax like `**bold**` or `[link](url)`
+    expect(innerHTML).not.toMatch(/\*\*/);
+    expect(innerHTML).not.toMatch(/\[.*\]\(.*\)/);
+
+    // Verify there's actual rendered text
+    expect(innerHTML.length).toBeGreaterThan(0);
+  });
+
+  test('disableKinds "term" produces no taxonomy pages', async () => {
+    // The disableKinds config prevents taxonomy/term pages from being built.
+    // Verify the built output has no taxonomy index pages.
+    const publicDir = path.join(process.cwd(), 'public');
+
+    const taxonomyDir = path.join(publicDir, 'tags');
+    const termDir = path.join(publicDir, 'categories');
+
+    expect(fs.existsSync(taxonomyDir)).toBe(false);
+    expect(fs.existsSync(termDir)).toBe(false);
+  });
+
+  test('custom output format _redirects is generated', async () => {
+    const publicDir = path.join(process.cwd(), 'public');
+    const redirectsFile = path.join(publicDir, '_redirects');
+
+    expect(fs.existsSync(redirectsFile)).toBe(true);
+
+    const content = fs.readFileSync(redirectsFile, 'utf-8');
+    expect(content.length).toBeGreaterThan(0);
+
+    // Should contain redirect rules (format: /source /destination 301)
+    expect(content).toMatch(/^\/.+\s+/m);
+  });
+
+  test('CSS pipeline processes without errors (css.Sass)', async ({ page }) => {
+    await page.goto('/');
+
+    // Verify stylesheet link exists in head (link elements are never "visible" in Playwright)
+    const styleLink = page.locator('link[rel="stylesheet"]').first();
+    await expect(styleLink).toHaveCount(1);
+
+    const href = await styleLink.getAttribute('href');
+    expect(href).toBeTruthy();
+    expect(href).toContain('.css');
+
+    // Verify the stylesheet loaded by checking computed styles are applied
+    const body = page.locator('body');
+    const computedStyle = await body.evaluate(el =>
+      window.getComputedStyle(el).backgroundColor
+    );
+    expect(computedStyle).not.toBe('');
+  });
+
+  test('built CSS is fingerprinted and valid', async () => {
+    // In production build (hugo build), CSS should be fingerprinted
+    const publicDir = path.join(process.cwd(), 'public');
+    const cssDir = path.join(publicDir, 'css');
+
+    const files = fs.readdirSync(cssDir);
+    const fingerprinted = files.find(f => f.match(/\.[a-f0-9]{64}\.css$/));
+
+    expect(fingerprinted).toBeDefined();
+
+    const content = fs.readFileSync(path.join(cssDir, fingerprinted!), 'utf-8');
+    expect(content.length).toBeGreaterThan(100000);
+  });
+});
diff --git a/layouts/partials/admonition.html b/layouts/partials/admonition.html
index dc37b6529..7701006e3 100644
--- a/layouts/partials/admonition.html
+++ b/layouts/partials/admonition.html
@@ -10,11 +10,11 @@
       <div class="content">
         {{ with .title }}
         <p class="title">
-          {{ . | markdownify }}
+          {{ . | string | markdownify }}
         </p>
         {{ end }}
 
-        {{ .content | markdownify }}
+        {{ .content | string | markdownify }}
       </div>
     </div>
   </div>
diff --git a/layouts/partials/css.html b/layouts/partials/css.html
index 6fded507d..91528a486 100644
--- a/layouts/partials/css.html
+++ b/layouts/partials/css.html
@@ -1,15 +1,10 @@
-{{- $inServerMode := site.IsServer }}
 {{- $includePaths := (slice "node_modules") }}
 {{- $sass         := "sass/style.sass" }}
 {{- $cssOutput    := "css/style.css" }}
 {{- $devOpts      := (dict "targetPath" $cssOutput "includePaths" $includePaths "enableSourceMap" true) }}
 {{- $prodOpts     := (dict "targetPath" $cssOutput "includePaths" $includePaths "outputStyle" "compressed") }}
-{{- $cssOpts      := cond $inServerMode $devOpts $prodOpts }}
-{{- $css          := resources.Get $sass | resources.ExecuteAsTemplate $sass . | toCSS $cssOpts }}
-{{- if $inServerMode }}
-<link rel="stylesheet" href="{{ $css.RelPermalink }}">
-{{- else }}
+{{- $cssOpts      := $prodOpts }}
+{{- $css          := resources.Get $sass | resources.ExecuteAsTemplate $sass . | css.Sass $cssOpts }}
 {{- $prodCss      := $css | postCSS | fingerprint }}
 <link rel="stylesheet" href="{{ $prodCss.RelPermalink }}" integrity="{{ $prodCss.Data.Integrity }}">
-{{- end }}
 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" />
\ No newline at end of file
diff --git a/layouts/shortcodes/version.html b/layouts/shortcodes/version.html
deleted file mode 100644
index 88cfb24dd..000000000
--- a/layouts/shortcodes/version.html
+++ /dev/null
@@ -1 +0,0 @@
-{{- site.Params.version -}}
diff --git a/netlify.toml b/netlify.toml
index ec07d7d3b..8df6a8b80 100644
--- a/netlify.toml
+++ b/netlify.toml
@@ -3,7 +3,7 @@ publish = "public"
 command = "make production-build"
 
 [build.environment]
-HUGO_VERSION = "0.74.0"
+HUGO_VERSION = "0.163.3"
 
 [context.deploy-preview]
 command = "make preview-build"
diff --git a/package.json b/package.json
index b7d9f23c6..97b4cb6ff 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,15 @@
 {
   "dependencies": {
-    "autoprefixer": "^9.7.4",
-    "bulma": "^0.8.0",
-    "postcss-cli": "^7.1.2"
+    "autoprefixer": "^10.5.2",
+    "bulma": "^1.0.4",
+    "postcss-cli": "^11.0.1"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.48.0"
+  },
+  "scripts": {
+    "test:e2e": "playwright test",
+    "test:e2e:ui": "playwright test --ui",
+    "test:e2e:debug": "playwright test --debug"
   }
 }
diff --git a/playwright.config.ts b/playwright.config.ts
new file mode 100644
index 000000000..5601eadae
--- /dev/null
+++ b/playwright.config.ts
@@ -0,0 +1,28 @@
+import { defineConfig, devices } from '@playwright/test';
+
+export default defineConfig({
+  testDir: './e2e',
+  fullyParallel: false,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: process.env.CI ? 1 : undefined,
+  reporter: 'html',
+  use: {
+    baseURL: 'http://localhost:1313',
+    trace: 'on-first-retry',
+  },
+
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chromium'] },
+    },
+  ],
+
+  webServer: {
+    command: 'hugo server --buildDrafts --buildFuture',
+    url: 'http://localhost:1313',
+    reuseExistingServer: !process.env.CI,
+    timeout: 120_000,
+  },
+});