diff --git a/backend/plugins.py b/backend/plugins.py
index 2bd2b65..c753a2b 100644
--- a/backend/plugins.py
+++ b/backend/plugins.py
@@ -308,7 +308,7 @@ async def execute_plugin(plugin_name: str, parent_node_id: str | None = None):
             await bus.publish("scene")
             return node.id
 
-        notifications.show(f'"{name}" node creation lands in R3/R5.', "info")
+        notifications.show(f'"{name}" node creation isn\'t available yet.', "info")
         await bus.publish("notification")
         return None
 
diff --git a/backend/tests/test_plugins.py b/backend/tests/test_plugins.py
index 75fe540..9db7cce 100644
--- a/backend/tests/test_plugins.py
+++ b/backend/tests/test_plugins.py
@@ -110,7 +110,7 @@ def test_execute_plugin_falls_through_to_the_generic_deferred_notice_for_an_unha
     assert result is None
     assert notifications.visible is True
     assert notifications.msg_type == "info"
-    assert notifications.message == '"Future Plugin" node creation lands in R3/R5.'
+    assert notifications.message == '"Future Plugin" node creation isn\'t available yet.'
 
 
 def test_execute_plugin_shows_warning_notification_for_unknown_plugin():
diff --git a/web_ui/src/app/canvas/ChatNodeView.test.tsx b/web_ui/src/app/canvas/ChatNodeView.test.tsx
index 4f5342c..a6d6a27 100644
--- a/web_ui/src/app/canvas/ChatNodeView.test.tsx
+++ b/web_ui/src/app/canvas/ChatNodeView.test.tsx
@@ -100,7 +100,7 @@ describe("ChatNodeView", () => {
     for (const name of ["Generate Key Takeaway", "Generate Explainer Note"]) {
       const item = screen.getByRole("menuitem", { name });
       expect(item).toBeDisabled();
-      expect(item).toHaveAttribute("title", "AI generation lands in R4");
+      expect(item).toHaveAttribute("title", "AI note generation isn't available yet");
     }
     expect(screen.getByRole("menuitem", { name: "Generate Image" })).not.toBeDisabled();
     expect(screen.getByRole("menuitem", { name: "Generate Chart" })).not.toBeDisabled();
diff --git a/web_ui/src/app/canvas/ChatNodeView.tsx b/web_ui/src/app/canvas/ChatNodeView.tsx
index 0992748..08459c6 100644
--- a/web_ui/src/app/canvas/ChatNodeView.tsx
+++ b/web_ui/src/app/canvas/ChatNodeView.tsx
@@ -207,10 +207,10 @@ function ChatNodeMenu({
       <button type="button" role="menuitem" disabled title="Document view integration isn't wired into the SPA yet">
         Open Document View
       </button>
-      <button type="button" role="menuitem" disabled title="AI generation lands in R4">
+      <button type="button" role="menuitem" disabled title="AI note generation isn't available yet">
         Generate Key Takeaway
       </button>
-      <button type="button" role="menuitem" disabled title="AI generation lands in R4">
+      <button type="button" role="menuitem" disabled title="AI note generation isn't available yet">
         Generate Explainer Note
       </button>
       {/* R6.2: a real click-to-expand submenu (not disabled) - same
diff --git a/web_ui/src/app/canvas/DocumentNodeView.test.tsx b/web_ui/src/app/canvas/DocumentNodeView.test.tsx
index 247ae6f..a66f258 100644
--- a/web_ui/src/app/canvas/DocumentNodeView.test.tsx
+++ b/web_ui/src/app/canvas/DocumentNodeView.test.tsx
@@ -195,7 +195,7 @@ describe("DocumentNodeView", () => {
 
     const exportItem = screen.getByRole("menuitem", { name: "Export" });
     expect(exportItem).toBeDisabled();
-    expect(exportItem).toHaveAttribute("title", "Export lands in R6");
+    expect(exportItem).toHaveAttribute("title", "Document export isn't available yet");
 
     // filePath is empty -> Open File must be entirely absent, matching the
     // legacy menu's own conditional (only added when file_path is set).
diff --git a/web_ui/src/app/canvas/DocumentNodeView.tsx b/web_ui/src/app/canvas/DocumentNodeView.tsx
index 01f51b7..c563065 100644
--- a/web_ui/src/app/canvas/DocumentNodeView.tsx
+++ b/web_ui/src/app/canvas/DocumentNodeView.tsx
@@ -263,7 +263,7 @@ function DocumentNodeMenu({
       )}
       <div className="chat-node-menu-separator" role="separator" />
       {isDocumentKind && (
-        <button type="button" role="menuitem" disabled title="Export lands in R6">
+        <button type="button" role="menuitem" disabled title="Document export isn't available yet">
           Export
         </button>
       )}
diff --git a/web_ui/src/app/canvas/HtmlNodeView.test.tsx b/web_ui/src/app/canvas/HtmlNodeView.test.tsx
index 06404b3..dcb9406 100644
--- a/web_ui/src/app/canvas/HtmlNodeView.test.tsx
+++ b/web_ui/src/app/canvas/HtmlNodeView.test.tsx
@@ -178,7 +178,7 @@ describe("HtmlNodeView", () => {
     expect(popout).toBeDisabled();
     expect(popout).toHaveAttribute(
       "title",
-      "Popout view isn't built yet - see the R3 plan doc for why a naive window.open() would be unsafe for untrusted HTML",
+      "Popout view isn't built yet - opening untrusted HTML in a separate window needs a security review first",
     );
 
     await user.click(popout); // disabled - fires nothing
diff --git a/web_ui/src/app/canvas/HtmlNodeView.tsx b/web_ui/src/app/canvas/HtmlNodeView.tsx
index e30db56..152b8be 100644
--- a/web_ui/src/app/canvas/HtmlNodeView.tsx
+++ b/web_ui/src/app/canvas/HtmlNodeView.tsx
@@ -202,7 +202,7 @@ export function HtmlNodeView({ data, selected }: NodeProps<HtmlFlowNode>) {
             type="button"
             className="html-node-header-btn"
             disabled
-            title="Popout view isn't built yet - see the R3 plan doc for why a naive window.open() would be unsafe for untrusted HTML"
+            title="Popout view isn't built yet - opening untrusted HTML in a separate window needs a security review first"
           >
             Popout
           </button>
diff --git a/web_ui/src/app/canvas/SceneCanvas.tsx b/web_ui/src/app/canvas/SceneCanvas.tsx
index 9891e47..b8b0dd6 100644
--- a/web_ui/src/app/canvas/SceneCanvas.tsx
+++ b/web_ui/src/app/canvas/SceneCanvas.tsx
@@ -146,7 +146,7 @@ function PlaceholderNodeView({ data, selected }: NodeProps<PlaceholderNode>) {
           on bottom. */}
       <Handle type="target" position={Position.Top} className="scene-node-handle" />
       <div className="scene-node-title">{data.title}</div>
-      {!collapsed && <div className="scene-node-body">placeholder — real nodes land in R3</div>}
+      {!collapsed && <div className="scene-node-body">Placeholder node</div>}
       <Handle type="source" position={Position.Bottom} className="scene-node-handle" />
     </div>
   );
diff --git a/web_ui/src/app/chrome/AppBar.tsx b/web_ui/src/app/chrome/AppBar.tsx
index 0688c76..3cbbd62 100644
--- a/web_ui/src/app/chrome/AppBar.tsx
+++ b/web_ui/src/app/chrome/AppBar.tsx
@@ -116,7 +116,7 @@ export function AppBar({ store }: { store: SceneStore }) {
         value="Ollama (Local)"
         aria-label="Provider mode"
         disabled
-        title="Provider modes land in R4"
+        title="Switching provider modes isn't available yet"
         onChange={() => {}}
       >
         <option>Ollama (Local)</option>
diff --git a/web_ui/src/app/chrome/Composer.test.tsx b/web_ui/src/app/chrome/Composer.test.tsx
index 70d5646..5f718f2 100644
--- a/web_ui/src/app/chrome/Composer.test.tsx
+++ b/web_ui/src/app/chrome/Composer.test.tsx
@@ -69,7 +69,9 @@ describe("Composer", () => {
     );
     expect(screen.getByLabelText("Send message")).toBeDisabled();
     expect(screen.getByLabelText("Attach context")).toBeDisabled();
-    expect(screen.getByTitle("Model/provider selection lands in R4")).toBeDisabled();
+    expect(
+      screen.getByTitle("Model selection isn't available here yet - configure models in Settings"),
+    ).toBeDisabled();
   });
 
   it("Send is enabled once there's text, calls sceneStore.sendMessage, and clears the draft", async () => {
diff --git a/web_ui/src/app/chrome/Composer.tsx b/web_ui/src/app/chrome/Composer.tsx
index 1d836ae..5dc52db 100644
--- a/web_ui/src/app/chrome/Composer.tsx
+++ b/web_ui/src/app/chrome/Composer.tsx
@@ -95,7 +95,7 @@ export function Composer({ store, sceneStore }: { store: ComposerStore; sceneSto
           type="button"
           className="composer-icon-button"
           disabled
-          title="Attachments land in R4 (file-staging pipeline)"
+          title="Attachments aren't available yet"
           aria-label="Attach context"
         >
           <Icon name="attach" />
@@ -119,7 +119,7 @@ export function Composer({ store, sceneStore }: { store: ComposerStore; sceneSto
           type="button"
           className="composer-control"
           disabled
-          title="Model/provider selection lands in R4"
+          title="Model selection isn't available here yet - configure models in Settings"
         >
           <span className="control-copy">
             <span className="control-kicker">{composer.route.provider}</span>