diff --git a/shared/static/scripts/sx-browser.js b/shared/static/scripts/sx-browser.js
index 769076e..abaa480 100644
--- a/shared/static/scripts/sx-browser.js
+++ b/shared/static/scripts/sx-browser.js
@@ -14,7 +14,7 @@
   // =========================================================================
 
   var NIL = Object.freeze({ _nil: true, toString: function() { return "nil"; } });
-  var SX_VERSION = "2026-03-13T03:34:17Z";
+  var SX_VERSION = "2026-03-13T03:40:30Z";
 
   function isNil(x) { return x === NIL || x === null || x === undefined; }
   function isSxTruthy(x) { return x !== false && !isNil(x); }
@@ -5526,7 +5526,7 @@ return (isSxTruthy((_batchDepth == 0)) ? (function() {
     var frag = document.createDocumentFragment();
     for (var i = 0; i < exprs.length; i++) {
       var node = renderToDom(exprs[i], env, null);
-      if (node) frag.appendChild(node);
+      if (node && !node._spread) frag.appendChild(node);
     }
     return frag;
   }
@@ -6004,7 +6004,7 @@ return (isSxTruthy((_batchDepth == 0)) ? (function() {
             else ph.parentNode.removeChild(ph);
           }));
         })(placeholder);
-      } else if (result) {
+      } else if (result && !result._spread) {
         frag.appendChild(result);
       }
     }
@@ -6058,7 +6058,23 @@ return (isSxTruthy((_batchDepth == 0)) ? (function() {
             }));
           })(placeholder);
         } else if (child) {
-          el.appendChild(child);
+          if (child._spread) {
+            // Spread: merge attrs onto parent element
+            var sa = child.attrs || {};
+            for (var sk in sa) {
+              if (sk === "class") {
+                var ec = el.getAttribute("class") || "";
+                el.setAttribute("class", ec ? ec + " " + sa[sk] : sa[sk]);
+              } else if (sk === "style") {
+                var es = el.getAttribute("style") || "";
+                el.setAttribute("style", es ? es + ";" + sa[sk] : sa[sk]);
+              } else {
+                el.setAttribute(sk, String(sa[sk]));
+              }
+            }
+          } else {
+            el.appendChild(child);
+          }
         }
       }
     }
@@ -6225,7 +6241,7 @@ return (isSxTruthy((_batchDepth == 0)) ? (function() {
           var ph = document.createComment("async");
           frag.appendChild(ph);
           (function(p) { pending.push(result.then(function(n) { if (n) p.parentNode.replaceChild(n, p); else p.parentNode.removeChild(p); })); })(ph);
-        } else if (result) {
+        } else if (result && !result._spread) {
           frag.appendChild(result);
         }
       }
@@ -6265,7 +6281,7 @@ return (isSxTruthy((_batchDepth == 0)) ? (function() {
           var ph = document.createComment("async");
           frag.appendChild(ph);
           (function(p) { pending.push(result.then(function(n) { if (n) p.parentNode.replaceChild(n, p); else p.parentNode.removeChild(p); })); })(ph);
-        } else if (result) {
+        } else if (result && !result._spread) {
           frag.appendChild(result);
         }
       }
@@ -6441,7 +6457,7 @@ return (isSxTruthy((_batchDepth == 0)) ? (function() {
     }
     var exprs = parse(source);
     var frag = document.createDocumentFragment();
-    for (var i = 0; i < exprs.length; i++) frag.appendChild(renderToDom(exprs[i], merge(componentEnv), null));
+    for (var i = 0; i < exprs.length; i++) { var _r = renderToDom(exprs[i], merge(componentEnv), null); if (_r && !_r._spread) frag.appendChild(_r); }
     return frag;
   }
 
diff --git a/shared/sx/ref/platform_js.py b/shared/sx/ref/platform_js.py
index 0c96d3e..2c5e9b8 100644
--- a/shared/sx/ref/platform_js.py
+++ b/shared/sx/ref/platform_js.py
@@ -366,7 +366,7 @@ ASYNC_IO_JS = '''
             else ph.parentNode.removeChild(ph);
           }));
         })(placeholder);
-      } else if (result) {
+      } else if (result && !result._spread) {
         frag.appendChild(result);
       }
     }
@@ -420,7 +420,23 @@ ASYNC_IO_JS = '''
             }));
           })(placeholder);
         } else if (child) {
-          el.appendChild(child);
+          if (child._spread) {
+            // Spread: merge attrs onto parent element
+            var sa = child.attrs || {};
+            for (var sk in sa) {
+              if (sk === "class") {
+                var ec = el.getAttribute("class") || "";
+                el.setAttribute("class", ec ? ec + " " + sa[sk] : sa[sk]);
+              } else if (sk === "style") {
+                var es = el.getAttribute("style") || "";
+                el.setAttribute("style", es ? es + ";" + sa[sk] : sa[sk]);
+              } else {
+                el.setAttribute(sk, String(sa[sk]));
+              }
+            }
+          } else {
+            el.appendChild(child);
+          }
         }
       }
     }
@@ -587,7 +603,7 @@ ASYNC_IO_JS = '''
           var ph = document.createComment("async");
           frag.appendChild(ph);
           (function(p) { pending.push(result.then(function(n) { if (n) p.parentNode.replaceChild(n, p); else p.parentNode.removeChild(p); })); })(ph);
-        } else if (result) {
+        } else if (result && !result._spread) {
           frag.appendChild(result);
         }
       }
@@ -627,7 +643,7 @@ ASYNC_IO_JS = '''
           var ph = document.createComment("async");
           frag.appendChild(ph);
           (function(p) { pending.push(result.then(function(n) { if (n) p.parentNode.replaceChild(n, p); else p.parentNode.removeChild(p); })); })(ph);
-        } else if (result) {
+        } else if (result && !result._spread) {
           frag.appendChild(result);
         }
       }
@@ -2783,7 +2799,7 @@ PLATFORM_BOOT_JS = """
     var frag = document.createDocumentFragment();
     for (var i = 0; i < exprs.length; i++) {
       var node = renderToDom(exprs[i], env, null);
-      if (node) frag.appendChild(node);
+      if (node && !node._spread) frag.appendChild(node);
     }
     return frag;
   }
@@ -3079,7 +3095,7 @@ def public_api_js(has_html, has_sx, has_dom, has_engine, has_orch, has_boot, has
     }
     var exprs = parse(source);
     var frag = document.createDocumentFragment();
-    for (var i = 0; i < exprs.length; i++) frag.appendChild(renderToDom(exprs[i], merge(componentEnv), null));
+    for (var i = 0; i < exprs.length; i++) { var _r = renderToDom(exprs[i], merge(componentEnv), null); if (_r && !_r._spread) frag.appendChild(_r); }
     return frag;
   }''')
     elif has_dom:
@@ -3087,7 +3103,7 @@ def public_api_js(has_html, has_sx, has_dom, has_engine, has_orch, has_boot, has
   function render(source) {
     var exprs = parse(source);
     var frag = document.createDocumentFragment();
-    for (var i = 0; i < exprs.length; i++) frag.appendChild(renderToDom(exprs[i], merge(componentEnv), null));
+    for (var i = 0; i < exprs.length; i++) { var _r = renderToDom(exprs[i], merge(componentEnv), null); if (_r && !_r._spread) frag.appendChild(_r); }
     return frag;
   }''')
     elif has_html: