diff --git a/lib/Github/Api/Authorizations.php b/lib/Github/Api/Authorizations.php
index f53b9eb4d22..f0122a3fc17 100644
--- a/lib/Github/Api/Authorizations.php
+++ b/lib/Github/Api/Authorizations.php
@@ -11,10 +11,19 @@
  */
 class Authorizations extends AbstractApi
 {
+    use AcceptHeaderTrait;
+
+    private function configurePreviewHeader()
+    {
+        $this->acceptHeaderValue = 'application/vnd.github.doctor-strange-preview+json';
+    }
+
     /**
      * List all authorizations.
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 13th November 2020. No replacement will be offered. The "web application flow" should be used instead.
      */
     public function all()
     {
@@ -27,6 +36,8 @@ public function all()
      * @param string $clientId
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 13th November 2020. No replacement will be offered. The "web application flow" should be used instead.
      */
     public function show($clientId)
     {
@@ -36,10 +47,12 @@ public function show($clientId)
     /**
      * Create an authorization.
      *
-     * @param array $params
-     * @param null  $OTPCode
+     * @param array       $params
+     * @param string|null $OTPCode
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 13th November 2020. No replacement will be offered. The "web application flow" should be used instead.
      */
     public function create(array $params, $OTPCode = null)
     {
@@ -55,6 +68,8 @@ public function create(array $params, $OTPCode = null)
      * @param array  $params
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 13th November 2020. No replacement will be offered. The "web application flow" should be used instead.
      */
     public function update($clientId, array $params)
     {
@@ -67,6 +82,8 @@ public function update($clientId, array $params)
      * @param string $clientId
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 13th November 2020. No replacement will be offered. The "web application flow" should be used instead.
      */
     public function remove($clientId)
     {
@@ -80,12 +97,29 @@ public function remove($clientId)
      * @param string $token
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 1st July 2020. Use self::checkToken() instead.
      */
     public function check($clientId, $token)
     {
         return $this->get('/applications/'.rawurlencode($clientId).'/tokens/'.rawurlencode($token));
     }
 
+    /**
+     * Check an application token.
+     *
+     * @param string      $clientId
+     * @param string|null $token
+     *
+     * @return array
+     */
+    public function checkToken($clientId, $token = null)
+    {
+        $this->configurePreviewHeader();
+
+        return $this->post('/applications/'.rawurlencode($clientId).'/token', $token ? ['access_token' => $token] : []);
+    }
+
     /**
      * Reset an authorization.
      *
@@ -93,17 +127,36 @@ public function check($clientId, $token)
      * @param string $token
      *
      * @return array
+     *
+     * @deprecated GitHub will remove this endpoint on 1st July 2020. Use self::resetToken() instead.
      */
     public function reset($clientId, $token)
     {
         return $this->post('/applications/'.rawurlencode($clientId).'/tokens/'.rawurlencode($token));
     }
 
+    /**
+     * Reset an application token.
+     *
+     * @param string      $clientId
+     * @param string|null $token
+     *
+     * @return array
+     */
+    public function resetToken($clientId, $token = null)
+    {
+        $this->configurePreviewHeader();
+
+        return $this->patch('/applications/'.rawurlencode($clientId).'/token', $token ? ['access_token' => $token] : []);
+    }
+
     /**
      * Remove an authorization.
      *
      * @param string $clientId
      * @param string $token
+     *
+     * @deprecated GitHub will remove this endpoint on 1st July 2020. Use self::deleteToken() instead.
      */
     public function revoke($clientId, $token)
     {
@@ -114,9 +167,41 @@ public function revoke($clientId, $token)
      * Revoke all authorizations.
      *
      * @param string $clientId
+     *
+     * @deprecated GitHub will remove this endpoint on 1st July 2020. Use self::deleteGrant() instead.
      */
     public function revokeAll($clientId)
     {
         $this->delete('/applications/'.rawurlencode($clientId).'/tokens');
     }
+
+    /**
+     * Revoke an application token.
+     *
+     * @param string      $clientId
+     * @param string|null $token
+     *
+     * @return void
+     */
+    public function deleteToken($clientId, $token = null)
+    {
+        $this->configurePreviewHeader();
+
+        $this->delete('/applications/'.rawurlencode($clientId).'/token', $token ? ['access_token' => $token] : []);
+    }
+
+    /**
+     * Revoke an application authorization.
+     *
+     * @param string      $clientId
+     * @param string|null $token
+     *
+     * @return void
+     */
+    public function deleteGrant($clientId, $token = null)
+    {
+        $this->configurePreviewHeader();
+
+        $this->delete('/applications/'.rawurlencode($clientId).'/grant', $token ? ['access_token' => $token] : []);
+    }
 }
diff --git a/test/Github/Tests/Api/AuthorizationsTest.php b/test/Github/Tests/Api/AuthorizationsTest.php
index a8170827484..87ace7c51f1 100644
--- a/test/Github/Tests/Api/AuthorizationsTest.php
+++ b/test/Github/Tests/Api/AuthorizationsTest.php
@@ -86,6 +86,24 @@ public function shouldDeleteAuthorization()
         $api->remove($id);
     }
 
+    /**
+     * @test
+     */
+    public function shouldCheckApplicationToken()
+    {
+        $id = 123;
+        $token = 'abc';
+        $expectedArray = ['id' => $id];
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('post')
+            ->with('/applications/'.$id.'/token', ['access_token' => $token])
+            ->will($this->returnValue($expectedArray));
+
+        $this->assertEquals($expectedArray, $api->checkToken($id, $token));
+    }
+
     /**
      * @test
      */
@@ -120,6 +138,24 @@ public function shouldResetAuthorization()
         $api->reset($id, $token);
     }
 
+    /**
+     * @test
+     */
+    public function shouldResetApplicationToken()
+    {
+        $id = 123;
+        $token = 'abcde';
+        $expectedArray = ['id' => $id];
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('patch')
+            ->with('/applications/'.$id.'/token', ['access_token' => $token])
+            ->will($this->returnValue($expectedArray));
+
+        $this->assertEquals($expectedArray, $api->resetToken($id, $token));
+    }
+
     /**
      * @test
      */
@@ -151,6 +187,38 @@ public function shouldRevokeAllAuthorizations()
         $api->revokeAll($id);
     }
 
+    /**
+     * @test
+     */
+    public function shouldDeleteApplicationToken()
+    {
+        $id = 123;
+        $token = 'abcde';
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('delete')
+            ->with('/applications/'.$id.'/token', ['access_token' => $token]);
+
+        $api->deleteToken($id, $token);
+    }
+
+    /**
+     * @test
+     */
+    public function shouldDeleteApplicationAuthorization()
+    {
+        $id = 123;
+        $token = 'abcde';
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('delete')
+            ->with('/applications/'.$id.'/grant', ['access_token' => $token]);
+
+        $api->deleteGrant($id, $token);
+    }
+
     /**
      * @return string
      */