diff --git a/resources/celerity/map.php b/resources/celerity/map.php
--- a/resources/celerity/map.php
+++ b/resources/celerity/map.php
@@ -7,7 +7,7 @@
  */
 return array(
   'names' => array(
-    'core.pkg.css' => 'a40c0b28',
+    'core.pkg.css' => 'eb8c668d',
     'core.pkg.js' => '47dc9ebb',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => '2de124c9',
@@ -138,7 +138,7 @@
     'rsrc/css/phui/phui-info-view.css' => '5b16bac6',
     'rsrc/css/phui/phui-list.css' => '125599df',
     'rsrc/css/phui/phui-object-box.css' => '407eaf5a',
-    'rsrc/css/phui/phui-object-item-list-view.css' => '26c30d3f',
+    'rsrc/css/phui/phui-object-item-list-view.css' => 'ab1bf393',
     'rsrc/css/phui/phui-pager.css' => 'bea33d23',
     'rsrc/css/phui/phui-pinboard-view.css' => '2495140e',
     'rsrc/css/phui/phui-property-list-view.css' => '03904f6b',
@@ -791,7 +791,7 @@
     'phui-inline-comment-view-css' => '0fdb3667',
     'phui-list-view-css' => '125599df',
     'phui-object-box-css' => '407eaf5a',
-    'phui-object-item-list-view-css' => '26c30d3f',
+    'phui-object-item-list-view-css' => 'ab1bf393',
     'phui-pager-css' => 'bea33d23',
     'phui-pinboard-view-css' => '2495140e',
     'phui-property-list-view-css' => '03904f6b',
diff --git a/src/applications/files/conduit/FileAllocateConduitAPIMethod.php b/src/applications/files/conduit/FileAllocateConduitAPIMethod.php
--- a/src/applications/files/conduit/FileAllocateConduitAPIMethod.php
+++ b/src/applications/files/conduit/FileAllocateConduitAPIMethod.php
@@ -17,6 +17,7 @@
       'contentLength' => 'int',
       'contentHash' => 'optional string',
       'viewPolicy' => 'optional string',
+      'deleteAfterEpoch' => 'optional int',
     );
   }
 
@@ -39,6 +40,11 @@
       'isExplicitUpload' => true,
     );
 
+    $ttl = $request->getValue('deleteAfterEpoch');
+    if ($ttl) {
+      $properties['ttl'] = $ttl;
+    }
+
     $file = null;
     if ($hash) {
       $file = PhabricatorFile::newFileFromContentHash(