diff --git a/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php b/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php
index 216c7ccb63..855cf2b4a0 100644
--- a/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php
+++ b/src/infrastructure/customfield/standard/PhabricatorStandardCustomFieldPHIDs.php
@@ -145,6 +145,46 @@ abstract class PhabricatorStandardCustomFieldPHIDs
     }
   }
 
+  public function getApplicationTransactionTitleForFeed(
+    PhabricatorApplicationTransaction $xaction) {
+    $author_phid = $xaction->getAuthorPHID();
+    $object_phid = $xaction->getObjectPHID();
+
+    $old = $this->decodeValue($xaction->getOldValue());
+    $new = $this->decodeValue($xaction->getNewValue());
+
+    $add = array_diff($new, $old);
+    $rem = array_diff($old, $new);
+
+    if ($add && !$rem) {
+      return pht(
+        '%s updated %s for %s, added %d: %s.',
+        $xaction->renderHandleLink($author_phid),
+        $this->getFieldName(),
+        $xaction->renderHandleLink($object_phid),
+        phutil_count($add),
+        $xaction->renderHandleList($add));
+    } else if ($rem && !$add) {
+      return pht(
+        '%s updated %s for %s, removed %s: %s.',
+        $xaction->renderHandleLink($author_phid),
+        $this->getFieldName(),
+        $xaction->renderHandleLink($object_phid),
+        phutil_count($rem),
+        $xaction->renderHandleList($rem));
+    } else {
+      return pht(
+        '%s updated %s for %s, added %s: %s; removed %s: %s.',
+        $xaction->renderHandleLink($author_phid),
+        $this->getFieldName(),
+        $xaction->renderHandleLink($object_phid),
+        phutil_count($add),
+        $xaction->renderHandleList($add),
+        phutil_count($rem),
+        $xaction->renderHandleList($rem));
+    }
+  }
+
   public function validateApplicationTransactions(
     PhabricatorApplicationTransactionEditor $editor,
     $type,
diff --git a/src/infrastructure/internationalization/translation/PhabricatorUSEnglishTranslation.php b/src/infrastructure/internationalization/translation/PhabricatorUSEnglishTranslation.php
index 1648d6608d..3c23491a4f 100644
--- a/src/infrastructure/internationalization/translation/PhabricatorUSEnglishTranslation.php
+++ b/src/infrastructure/internationalization/translation/PhabricatorUSEnglishTranslation.php
@@ -1483,6 +1483,24 @@ final class PhabricatorUSEnglishTranslation
         'repositories for updates yet.',
       ),
 
+
+      '%s updated %s, added %d: %s.' =>
+        '%s updated %s, added: %4$s.',
+
+      '%s updated %s, removed %s: %s.' =>
+        '%s updated %s, removed: %4$s.',
+
+      '%s updated %s, added %s: %s; removed %s: %s.' =>
+        '%s updated %s, added: %4$s; removed: %6$s.',
+
+      '%s updated %s for %s, added %d: %s.' =>
+        '%s updated %s for %s, added: %5$s.',
+
+      '%s updated %s for %s, removed %s: %s.' =>
+        '%s updated %s for %s, removed: %5$s.',
+
+      '%s updated %s for %s, added %s: %s; removed %s: %s.' =>
+        '%s updated %s for %s, added: %5$s; removed; %7$s.',
     );
   }