diff --git a/assets/data/platform-facts.js b/assets/data/platform-facts.js
index 639bf20..586e02a 100644
--- a/assets/data/platform-facts.js
+++ b/assets/data/platform-facts.js
@@ -26,7 +26,7 @@ window.PLATFORM_FACTS = {
     { name: "Shared", note: "Result pattern, value objects, error handling, DTOs", items: ["MMCA.Common.Shared"] },
     { name: "Domain", note: "Entities, aggregate roots, domain events, specifications", items: ["MMCA.Common.Domain"] },
     { name: "Application", note: "CQRS handlers, the decorator pipeline, the module system", items: ["MMCA.Common.Application"] },
-    { name: "Infrastructure", note: "EF Core multi-engine, repositories, caching, outbox, message bus", items: ["MMCA.Common.Infrastructure"] },
+    { name: "Infrastructure", note: "EF Core multi-engine, repositories, caching, outbox, message bus, multi-tenancy, audit trail, job scheduler", items: ["MMCA.Common.Infrastructure"] },
     { name: "API & transport", note: "Controllers, middleware, idempotency, JWKS, gRPC contracts", items: ["MMCA.Common.API", "MMCA.Common.Grpc"], edge: true },
     { name: "UI", note: "Blazor shared components, MudBlazor theme, web and MAUI clients", items: ["MMCA.Common.UI", "MMCA.Common.UI.Web", "MMCA.Common.UI.Maui"] },
     { name: "Hosting", note: "Aspire service defaults, OpenTelemetry, health checks, broker wiring", items: ["MMCA.Common.Aspire", "MMCA.Common.Aspire.Hosting"], edge: true },
diff --git a/platform.html b/platform.html
index d55775f..bb5b9df 100644
--- a/platform.html
+++ b/platform.html
@@ -165,7 +165,7 @@ <h2>MMCA.Common</h2>
             <span class="layer-name">Infrastructure</span>
             <span>
               <span class="pill-list"><span class="pill">MMCA.Common.Infrastructure</span></span>
-              <span class="layer-note">EF Core multi-engine, repositories, caching, outbox, message bus</span>
+              <span class="layer-note">EF Core multi-engine, repositories, caching, outbox, message bus, multi-tenancy, audit trail, job scheduler</span>
             </span>
           </li>
           <li class="layer layer--edge">
@@ -228,7 +228,7 @@ <h2>Three reference applications</h2>
           <div class="card">
             <span class="kicker kicker--accent">Conference</span>
             <h3>MMCA.ADC</h3>
-            <p class="mb-0">A production-deployed conference platform: four microservices (Identity, Conference, Engagement, Notification) behind a YARP gateway, cross-service JWKS auth, bidirectional gRPC, polyglot persistence, and load testing at conference-day scale. It powered the Atlanta Cloud + AI Conference.</p>
+            <p class="mb-0">A production-deployed conference platform: four microservices (Identity, Conference, Engagement, Notification) behind a YARP gateway, cross-service JWKS auth, bidirectional gRPC, polyglot persistence, QR badge check-in with a live points leaderboard, and load testing at conference-day scale. It powered the Atlanta Cloud + AI Conference.</p>
           </div>
           <div class="card">
             <span class="kicker kicker--accent">E-commerce</span>
@@ -290,6 +290,14 @@ <h3>Soft-delete plus a right to erasure</h3>
             <h3>Polyglot persistence behind one model</h3>
             <p class="mb-0">SQL Server, Cosmos DB, and SQLite sit behind a single entity model; the engine is an attribute on the configuration, orthogonal to the database-name axis. Plumbing shipped and tested.</p>
           </div>
+          <div class="card">
+            <h3>Multi-tenancy without a fork</h3>
+            <p class="mb-0">An opt-in tenant query filter composes with the soft-delete filter, a write interceptor refuses cross-tenant writes, and a per-tenant connection-string override buys full database isolation, all from the same entity model.</p>
+          </div>
+          <div class="card">
+            <h3>Enterprise capabilities, opt-in</h3>
+            <p class="mb-0">A field-level audit trail written in the same transaction as the data, a data-subject export contract with app-registered sections, durable cron jobs built on the outbox's own claim lease, and CSV export on every entity endpoint. Nothing turns on until a host asks for it.</p>
+          </div>
         </div>
       </div>
     </section>
diff --git a/sitemap.xml b/sitemap.xml
index c2ff0e0..4c4fd7f 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -12,7 +12,7 @@
   </url>
   <url>
     <loc>https://ivanball.github.io/platform.html</loc>
-    <lastmod>2026-08-14</lastmod>
+    <lastmod>2026-08-15</lastmod>
     <priority>0.9</priority>
   </url>
   <url>