Index: src/applications/diffusion/controller/DiffusionCommitController.php
===================================================================
--- src/applications/diffusion/controller/DiffusionCommitController.php
+++ src/applications/diffusion/controller/DiffusionCommitController.php
@@ -414,6 +414,8 @@
       ->withSourcePHIDs(array($commit_phid))
       ->withEdgeTypes(array(
         PhabricatorEdgeConfig::TYPE_COMMIT_HAS_TASK,
+        PhabricatorEdgeConfig::TYPE_COMMIT_RELATED_TO_COMMIT,
+        PhabricatorEdgeConfig::TYPE_COMMIT_RELATED_FROM_COMMIT,
         PhabricatorEdgeConfig::TYPE_COMMIT_HAS_PROJECT,
         PhabricatorEdgeConfig::TYPE_COMMIT_HAS_DREV,
       ));
@@ -422,6 +424,10 @@
 
     $task_phids = array_keys(
       $edges[$commit_phid][PhabricatorEdgeConfig::TYPE_COMMIT_HAS_TASK]);
+    $commit_related_from_phids = array_keys(
+      $edges[$commit_phid][PhabricatorEdgeConfig::TYPE_COMMIT_RELATED_FROM_COMMIT]);
+    $commit_related_to_phids = array_keys(
+      $edges[$commit_phid][PhabricatorEdgeConfig::TYPE_COMMIT_RELATED_TO_COMMIT]);
     $proj_phids = array_keys(
       $edges[$commit_phid][PhabricatorEdgeConfig::TYPE_COMMIT_HAS_PROJECT]);
     $revision_phid = key(
@@ -563,6 +569,24 @@
       $props['References'] = $refs;
     }
 
+    if ($commit_related_from_phids) {
+      $commit_list = array();
+      foreach ($commit_related_from_phids as $phid) {
+          $commit_list[] = $handles[$phid]->renderLink();
+      }
+      $commit_list = phutil_implode_html(phutil_tag('br'), $commit_list);
+      $props['Related by Commits'] = $commit_list;
+    }
+
+    if ($commit_related_to_phids) {
+      $commit_list = array();
+      foreach ($commit_related_to_phids as $phid) {
+          $commit_list[] = $handles[$phid]->renderLink();
+      }
+      $commit_list = phutil_implode_html(phutil_tag('br'), $commit_list);
+      $props['Related to Commits'] = $commit_list;
+    }
+
     if ($task_phids) {
       $task_list = array();
       foreach ($task_phids as $phid) {
@@ -957,6 +981,14 @@
       ->setIcon('download');
     $actions->addAction($action);
 
+    $action = id(new PhabricatorActionView())
+      ->setName(pht('Edit related Revision'))
+      ->setIcon('attach')
+      ->setHref('/search/attach/'.$commit->getPHID().'/CMIT/dependencies/')
+      ->setWorkflow(true)
+      ->setDisabled(!$can_edit);
+    $actions->addAction($action);
+
     return $actions;
   }
 
Index: src/applications/search/controller/PhabricatorSearchAttachController.php
===================================================================
--- src/applications/search/controller/PhabricatorSearchAttachController.php
+++ src/applications/search/controller/PhabricatorSearchAttachController.php
@@ -297,6 +297,7 @@
     $map = array(
       $t_cmit => array(
         $t_task => PhabricatorEdgeConfig::TYPE_COMMIT_HAS_TASK,
+        $t_cmit => PhabricatorEdgeConfig::TYPE_COMMIT_RELATED_TO_COMMIT,
       ),
       $t_task => array(
         $t_cmit => PhabricatorEdgeConfig::TYPE_TASK_HAS_COMMIT,
Index: src/infrastructure/edges/constants/PhabricatorEdgeConfig.php
===================================================================
--- src/infrastructure/edges/constants/PhabricatorEdgeConfig.php
+++ src/infrastructure/edges/constants/PhabricatorEdgeConfig.php
@@ -60,6 +60,9 @@
   const TYPE_MOCK_HAS_TASK              = 37;
   const TYPE_TASK_HAS_MOCK              = 38;
 
+  const TYPE_COMMIT_RELATED_TO_COMMIT   = 39;
+  const TYPE_COMMIT_RELATED_FROM_COMMIT = 40;
+
   const TYPE_TEST_NO_CYCLE              = 9000;
 
   const TYPE_PHOB_HAS_ASANATASK         = 80001;
@@ -76,6 +79,11 @@
       self::TYPE_TASK_HAS_COMMIT => self::TYPE_COMMIT_HAS_TASK,
       self::TYPE_COMMIT_HAS_TASK => self::TYPE_TASK_HAS_COMMIT,
 
+      self::TYPE_COMMIT_RELATED_TO_COMMIT =>
+        self::TYPE_COMMIT_RELATED_FROM_COMMIT,
+      self::TYPE_COMMIT_RELATED_FROM_COMMIT =>
+        self::TYPE_COMMIT_RELATED_TO_COMMIT,
+
       self::TYPE_TASK_DEPENDS_ON_TASK => self::TYPE_TASK_DEPENDED_ON_BY_TASK,
       self::TYPE_TASK_DEPENDED_ON_BY_TASK => self::TYPE_TASK_DEPENDS_ON_TASK,
 
@@ -134,7 +142,7 @@
       self::TYPE_REVIEWER_FOR_DREV => self::TYPE_DREV_HAS_REVIEWER,
 
       self::TYPE_PHOB_HAS_JIRAISSUE => self::TYPE_JIRAISSUE_HAS_PHOB,
-      self:: TYPE_JIRAISSUE_HAS_PHOB => self::TYPE_PHOB_HAS_JIRAISSUE
+      self::TYPE_JIRAISSUE_HAS_PHOB => self::TYPE_PHOB_HAS_JIRAISSUE
     );
 
     return idx($map, $edge_type);
@@ -142,9 +150,10 @@
 
   public static function shouldPreventCycles($edge_type) {
     static $map = array(
-      self::TYPE_TEST_NO_CYCLE          => true,
-      self::TYPE_TASK_DEPENDS_ON_TASK   => true,
-      self::TYPE_DREV_DEPENDS_ON_DREV   => true,
+      self::TYPE_TEST_NO_CYCLE             => true,
+      self::TYPE_COMMIT_RELATED_TO_COMMIT  => true,
+      self::TYPE_TASK_DEPENDS_ON_TASK      => true,
+      self::TYPE_DREV_DEPENDS_ON_DREV      => true,
     );
     return isset($map[$edge_type]);
   }
@@ -182,6 +191,7 @@
       case self::TYPE_TASK_HAS_COMMIT:
       case self::TYPE_PROJECT_HAS_COMMIT:
       case self::TYPE_DREV_HAS_COMMIT:
+      case self::TYPE_COMMIT_RELATED_TO_COMMIT:
         return '%s edited commit(s), added %d: %s; removed %d: %s.';
       case self::TYPE_COMMIT_HAS_TASK:
       case self::TYPE_TASK_DEPENDS_ON_TASK:
@@ -254,6 +264,7 @@
       case self::TYPE_TASK_HAS_COMMIT:
       case self::TYPE_PROJECT_HAS_COMMIT:
       case self::TYPE_DREV_HAS_COMMIT:
+      case self::TYPE_COMMIT_RELATED_TO_COMMIT:
         return '%s added %d commit(s): %s.';
       case self::TYPE_TASK_DEPENDS_ON_TASK:
         return '%s added %d dependencie(s): %s.';
@@ -323,6 +334,7 @@
       case self::TYPE_TASK_HAS_COMMIT:
       case self::TYPE_PROJECT_HAS_COMMIT:
       case self::TYPE_DREV_HAS_COMMIT:
+      case self::TYPE_COMMIT_RELATED_TO_COMMIT:
         return '%s removed %d commit(s): %s.';
       case self::TYPE_TASK_DEPENDS_ON_TASK:
         return '%s removed %d dependencie(s): %s.';
@@ -392,6 +404,7 @@
       case self::TYPE_TASK_HAS_COMMIT:
       case self::TYPE_PROJECT_HAS_COMMIT:
       case self::TYPE_DREV_HAS_COMMIT:
+      case self::TYPE_COMMIT_RELATED_TO_COMMIT:
         return '%s updated commits of %s.';
       case self::TYPE_COMMIT_HAS_TASK:
       case self::TYPE_TASK_DEPENDS_ON_TASK: