diff --git a/composer.json b/composer.json
index 4c7036bf..c0cb5318 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,5 @@
 {
-    "name": "m4tthumphrey/php-gitlab-api",
+    "name": "jjvanrossum/php-gitlab-api",
     "description": "GitLab API v4 client for PHP",
     "keywords": ["gitlab", "api"],
     "license": "MIT",
diff --git a/src/Api/GroupsEpics.php b/src/Api/GroupsEpics.php
index ec87cad8..99f91d2b 100644
--- a/src/Api/GroupsEpics.php
+++ b/src/Api/GroupsEpics.php
@@ -55,6 +55,7 @@ public function all($group_id, array $parameters = [])
             ->setAllowedValues('state', [self::STATE_ALL, self::STATE_OPENED, self::STATE_CLOSED])
         ;
         $resolver->setDefined('search');
+        $resolver->setDefined('updated_after');
 
         return $this->get('groups/'.self::encodePath($group_id).'/epics', $resolver->resolve($parameters));
     }
@@ -114,4 +115,26 @@ public function issues($group_id, int $epic_iid)
     {
         return $this->get('groups/'.self::encodePath($group_id).'/epics/'.self::encodePath($epic_iid).'/issues');
     }
+
+    /**
+     * @param int|string $group_id
+     * @param int        $epic_iid
+     *
+     * @return mixed
+     */
+    public function showDiscussions($group_id, int $epic_iid)
+    {
+        return $this->get('groups/'.self::encodePath($group_id).'/epics/'.self::encodePath($epic_iid).'/discussions');
+    }
+
+    /**
+     * @param int|string $group_id
+     * @param int        $epic_iid
+     *
+     * @return mixed
+     */
+    public function showNotes($group_id, int $epic_iid)
+    {
+        return $this->get('groups/'.self::encodePath($group_id).'/epics/'.self::encodePath($epic_iid).'/notes');
+    }
 }
diff --git a/src/Client.php b/src/Client.php
index 4082f1ac..7abc4cc6 100644
--- a/src/Client.php
+++ b/src/Client.php
@@ -21,6 +21,7 @@
 use Gitlab\Api\Groups;
 use Gitlab\Api\GroupsBoards;
 use Gitlab\Api\GroupsEpics;
+use Gitlab\Api\GroupsIterations;
 use Gitlab\Api\GroupsMilestones;
 use Gitlab\Api\IssueBoards;
 use Gitlab\Api\IssueLinks;
@@ -208,6 +209,14 @@ public function groupsEpics(): GroupsEpics
         return new GroupsEpics($this);
     }
 
+    /**
+     * @return GroupsEpics
+     */
+    public function groupsIterations(): GroupsIterations
+    {
+        return new GroupsIterations($this);
+    }
+
     /**
      * @return GroupsMilestones
      */