diff --git a/system/CodeIgniter.php b/system/CodeIgniter.php
index 96e455da1c1a..f9ddacc3b24e 100644
--- a/system/CodeIgniter.php
+++ b/system/CodeIgniter.php
@@ -135,25 +135,6 @@ class CodeIgniter
      */
     protected static $cacheTTL = 0;
 
-    /**
-     * Request path to use.
-     *
-     * @var string
-     *
-     * @deprecated No longer used.
-     */
-    protected $path;
-
-    /**
-     * Should the Response instance "pretend"
-     * to keep from setting headers/cookies/etc
-     *
-     * @var bool
-     *
-     * @deprecated No longer used.
-     */
-    protected $useSafeOutput = false;
-
     /**
      * Context
      *  web:     Invoked by HTTP request
@@ -385,22 +366,6 @@ public function run(?RouteCollectionInterface $routes = null, bool $returnRespon
         $this->sendResponse();
     }
 
-    /**
-     * Set our Response instance to "pretend" mode so that things like
-     * cookies and headers are not actually sent, allowing PHP 7.2+ to
-     * not complain when ini_set() function is used.
-     *
-     * @return $this
-     *
-     * @deprecated No longer used.
-     */
-    public function useSafeOutput(bool $safe = true)
-    {
-        $this->useSafeOutput = $safe;
-
-        return $this;
-    }
-
     /**
      * Invoked via php-cli command?
      */
@@ -846,30 +811,9 @@ protected function tryToRouteIt(?RouteCollectionInterface $routes = null)
      */
     protected function determinePath()
     {
-        if (! empty($this->path)) {
-            return $this->path;
-        }
-
         return method_exists($this->request, 'getPath') ? $this->request->getPath() : $this->request->getUri()->getPath();
     }
 
-    /**
-     * Allows the request path to be set from outside the class,
-     * instead of relying on CLIRequest or IncomingRequest for the path.
-     *
-     * This is not used now.
-     *
-     * @return $this
-     *
-     * @deprecated No longer used.
-     */
-    public function setPath(string $path)
-    {
-        $this->path = $path;
-
-        return $this;
-    }
-
     /**
      * Now that everything has been setup, this method attempts to run the
      * controller method and make the script go. If it's not able to, will
diff --git a/tests/system/CodeIgniterTest.php b/tests/system/CodeIgniterTest.php
index 54ea3d10445c..b7b5e092e609 100644
--- a/tests/system/CodeIgniterTest.php
+++ b/tests/system/CodeIgniterTest.php
@@ -87,7 +87,7 @@ public function testRunEmptyDefaultRouteReturnResponse(): void
         $_SERVER['argv'] = ['index.php'];
         $_SERVER['argc'] = 1;
 
-        $response = $this->codeigniter->useSafeOutput(true)->run(null, true);
+        $response = $this->codeigniter->run(null, true);
 
         $this->assertStringContainsString('Welcome to CodeIgniter', $response->getBody());
     }
@@ -164,7 +164,7 @@ public function testRun404OverrideReturnResponse(): void
         $router = Services::router($routes, Services::incomingrequest());
         Services::injectMock('router', $router);
 
-        $response = $this->codeigniter->useSafeOutput(true)->run($routes, true);
+        $response = $this->codeigniter->run($routes, true);
 
         $this->assertStringContainsString('Oops', $response->getBody());
     }