diff --git a/README.md b/README.md
index 4090e922..b8396706 100644
--- a/README.md
+++ b/README.md
@@ -44,8 +44,7 @@ We try to make sure vichan is compatible with all major web servers. vichan does
 ### Recommended
 1.	MySQL/MariaDB server >= 5.5.3
 2.	ImageMagick (command-line ImageMagick or GraphicsMagick preferred).
-3.	~~[APC (Alternative PHP Cache)](http://php.net/manual/en/book.apc.php)~~,
-	[APCu (Alternative PHP Cache)](http://php.net/manual/en/book.apcu.php),
+3.	[APCu (Alternative PHP Cache)](http://php.net/manual/en/book.apcu.php),
 	[Memcached](http://www.php.net/manual/en/intro.memcached.php) or
 	[Redis](https://redis.io/docs/about/)
 
diff --git a/inc/cache.php b/inc/cache.php
index 1c7680fb..0979138b 100644
--- a/inc/cache.php
+++ b/inc/cache.php
@@ -41,9 +41,6 @@ class Cache {
 					self::init();
 				$data = self::$cache->get($key);
 				break;
-			case 'apc':
-				$data = apc_fetch($key);
-				break;
 			case 'apcu':
 				$data = apcu_fetch($key);
 				break;
@@ -92,9 +89,6 @@ class Cache {
 					self::init();
 				self::$cache->setex($key, $expires, json_encode($value));
 				break;
-			case 'apc':
-				apc_store($key, $value, $expires);
-				break;
 			case 'apcu':
 				apcu_store($key, $value, $expires);
 				break;
@@ -127,9 +121,6 @@ class Cache {
 					self::init();
 				self::$cache->del($key);
 				break;
-			case 'apc':
-				apc_delete($key);
-				break;
 			case 'apcu':
 				apcu_delete($key);
 				break;
@@ -154,8 +145,6 @@ class Cache {
 				if (!self::$cache)
 					self::init();
 				return self::$cache->flush();
-			case 'apc':
-				return apc_clear_cache('user');
 			case 'apcu':
 				return apcu_clear_cache('user');
 			case 'php':
diff --git a/inc/config.php b/inc/config.php
index 8c3e08b7..1d2b3966 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -121,7 +121,7 @@
 	 */
 
 	$config['cache']['enabled'] = 'php';
-	// $config['cache']['enabled'] = 'apc';
+	// $config['cache']['enabled'] = 'apcu';
 	// $config['cache']['enabled'] = 'memcached';
 	// $config['cache']['enabled'] = 'redis';
 	// $config['cache']['enabled'] = 'fs';
@@ -1306,7 +1306,6 @@
 	$config['file_mod_debug_antispam'] = 'mod/debug/antispam.html';
 	$config['file_mod_debug_recent_posts'] = 'mod/debug/recent_posts.html';
 	$config['file_mod_debug_sql'] = 'mod/debug/sql.html';
-	$config['file_mod_debug_apc'] = 'mod/debug/apc.html';
 
 	// Board directory, followed by a forward-slash (/).
 	$config['board_path'] = '%s/';
@@ -1707,8 +1706,6 @@
 	$config['mod']['news_delete'] = ADMIN;
 	// Execute un-filtered SQL queries on the database (?/debug/sql)
 	$config['mod']['debug_sql'] = DISABLED;
-	// Look through all cache values for debugging when APC is enabled (?/debug/apc)
-	$config['mod']['debug_apc'] = ADMIN;
 	// Edit the current configuration (via web interface)
 	$config['mod']['edit_config'] = ADMIN;
 	// View ban appeals
diff --git a/inc/mod/pages.php b/inc/mod/pages.php
index d1bcf939..f7c1ac47 100644
--- a/inc/mod/pages.php
+++ b/inc/mod/pages.php
@@ -3001,25 +3001,3 @@ function mod_debug_sql() {
 
 	mod_page(_('Debug: SQL'), $config['file_mod_debug_sql'], $args);
 }
-
-function mod_debug_apc() {
-	global $config;
-
-	if (!hasPermission($config['mod']['debug_apc']))
-		error($config['error']['noaccess']);
-
-	if ($config['cache']['enabled'] != 'apc')
-		error('APC is not enabled.');
-
-	$cache_info = apc_cache_info('user');
-
-	// $cached_vars = new APCIterator('user', '/^' . $config['cache']['prefix'] . '/');
-	$cached_vars = array();
-	foreach ($cache_info['cache_list'] as $var) {
-		if ($config['cache']['prefix'] != '' && strpos(isset($var['key']) ? $var['key'] : $var['info'], $config['cache']['prefix']) !== 0)
-			continue;
-		$cached_vars[] = $var;
-	}
-
-	mod_page(_('Debug: APC'), $config['file_mod_debug_apc'], array('cached_vars' => $cached_vars));
-}
diff --git a/install.php b/install.php
index 003efbe8..c174771b 100644
--- a/install.php
+++ b/install.php
@@ -876,11 +876,10 @@ if ($step == 0) {
 		),
 		array(
 			'category' => 'Misc',
-			'name' => 'Caching available (APC(u), Memcached or Redis)',
-			'result' => extension_loaded('apcu') || extension_loaded('apc') ||
-						extension_loaded('memcached') || extension_loaded('redis'),
+			'name' => 'Caching available (APCu, Memcached or Redis)',
+			'result' => extension_loaded('apcu') || extension_loaded('memcached') || extension_loaded('redis'),
 			'required' => false,
-			'message' => 'You will not be able to enable the additional caching system, designed to minimize SQL queries and significantly improve performance. <a href="http://php.net/manual/en/book.apc.php">APC</a> is the recommended method of caching, but <a href="http://www.php.net/manual/en/intro.memcached.php">Memcached</a> and <a href="http://pecl.php.net/package/redis">Redis</a> are also supported.'
+			'message' => 'You will not be able to enable the additional caching system, designed to minimize SQL queries and significantly improve performance. <a href="https://www.php.net/manual/en/book.apcu.php">APCu</a> is the recommended method of caching, but <a href="http://www.php.net/manual/en/intro.memcached.php">Memcached</a> and <a href="http://pecl.php.net/package/redis">Redis</a> are also supported.'
 		),
 		array(
 			'category' => 'Misc',
diff --git a/mod.php b/mod.php
index 0ef8a36b..5018992d 100644
--- a/mod.php
+++ b/mod.php
@@ -96,7 +96,6 @@ $pages = array(
 	// these pages aren't listed in the dashboard without $config['debug']
 	//'/debug/antispam'			=> 'debug_antispam',
 	//'/debug/recent'				=> 'debug_recent_posts',
-	//'/debug/apc'				=> 'debug_apc',
 	//'/debug/sql'				=> 'secure_POST debug_sql',
 
 	// This should always be at the end: