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' => '994de4ed',
+    'core.pkg.css' => 'eb8c668d',
     'core.pkg.js' => '47dc9ebb',
     'darkconsole.pkg.js' => 'e7393ebb',
     'differential.pkg.css' => '2de124c9',
@@ -93,7 +93,7 @@
     'rsrc/css/application/policy/policy-edit.css' => '815c66f7',
     'rsrc/css/application/policy/policy-transaction-detail.css' => '82100a43',
     'rsrc/css/application/policy/policy.css' => '957ea14c',
-    'rsrc/css/application/ponder/ponder-view.css' => 'bef48f86',
+    'rsrc/css/application/ponder/ponder-view.css' => '7b0df4da',
     'rsrc/css/application/projects/project-icon.css' => '4e3eaa5a',
     'rsrc/css/application/releeph/releeph-core.css' => '9b3c5733',
     'rsrc/css/application/releeph/releeph-preview-branch.css' => 'b7a6f4a5',
@@ -104,7 +104,7 @@
     'rsrc/css/application/tokens/tokens.css' => '3d0f239e',
     'rsrc/css/application/uiexample/example.css' => '528b19de',
     'rsrc/css/core/core.css' => 'a76cefc9',
-    'rsrc/css/core/remarkup.css' => '73fc4395',
+    'rsrc/css/core/remarkup.css' => 'ef286a6e',
     'rsrc/css/core/syntax.css' => '9fd11da8',
     'rsrc/css/core/z-index.css' => '57ddcaa2',
     'rsrc/css/diviner/diviner-shared.css' => '5a337049',
@@ -141,7 +141,7 @@
     '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' => '318d4dea',
+    'rsrc/css/phui/phui-property-list-view.css' => '03904f6b',
     'rsrc/css/phui/phui-remarkup-preview.css' => '867f85b3',
     'rsrc/css/phui/phui-spacing.css' => '042804d6',
     'rsrc/css/phui/phui-status.css' => '888cedb8',
@@ -737,7 +737,7 @@
     'phabricator-object-selector-css' => '85ee8ce6',
     'phabricator-phtize' => 'd254d646',
     'phabricator-prefab' => '6920d200',
-    'phabricator-remarkup-css' => '73fc4395',
+    'phabricator-remarkup-css' => 'ef286a6e',
     'phabricator-search-results-css' => '7dea472c',
     'phabricator-shaped-request' => '7cbe244b',
     'phabricator-side-menu-view-css' => 'bec2458e',
@@ -794,7 +794,7 @@
     'phui-object-item-list-view-css' => 'ab1bf393',
     'phui-pager-css' => 'bea33d23',
     'phui-pinboard-view-css' => '2495140e',
-    'phui-property-list-view-css' => '318d4dea',
+    'phui-property-list-view-css' => '03904f6b',
     'phui-remarkup-preview-css' => '867f85b3',
     'phui-spacing-css' => '042804d6',
     'phui-status-list-view-css' => '888cedb8',
@@ -811,7 +811,7 @@
     'policy-css' => '957ea14c',
     'policy-edit-css' => '815c66f7',
     'policy-transaction-detail-css' => '82100a43',
-    'ponder-view-css' => 'bef48f86',
+    'ponder-view-css' => '7b0df4da',
     'project-icon-css' => '4e3eaa5a',
     'raphael-core' => '51ee6b43',
     'raphael-g' => '40dde778',
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(