diff --git a/phpstan-baseline.php b/phpstan-baseline.php
index c7a6c692ed54..8dd1905e6b96 100644
--- a/phpstan-baseline.php
+++ b/phpstan-baseline.php
@@ -261,66 +261,6 @@
 	'count' => 1,
 	'path' => __DIR__ . '/system/BaseModel.php',
 ];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$afterDelete type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$afterFind type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$afterInsert type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$afterInsertBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$afterUpdate type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$afterUpdateBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$beforeDelete type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$beforeFind type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$beforeInsert type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$beforeInsertBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$beforeUpdate type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property CodeIgniter\\\\BaseModel\\:\\:\\$beforeUpdateBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
 $ignoreErrors[] = [
 	'message' => '#^Strict comparison using \\!\\=\\= between mixed and null will always evaluate to true\\.$#',
 	'count' => 1,
@@ -11116,71 +11056,11 @@
 	'count' => 1,
 	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
 ];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$afterDelete type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$afterFind type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$afterInsert type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$afterInsertBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$afterUpdate type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$afterUpdateBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeDelete type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeFind type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
 $ignoreErrors[] = [
 	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeFindReturnData has no type specified\\.$#',
 	'count' => 1,
 	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
 ];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeInsert type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeInsertBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeUpdate type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
-$ignoreErrors[] = [
-	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$beforeUpdateBatch type has no value type specified in iterable type array\\.$#',
-	'count' => 1,
-	'path' => __DIR__ . '/tests/_support/Models/EventModel.php',
-];
 $ignoreErrors[] = [
 	'message' => '#^Property Tests\\\\Support\\\\Models\\\\EventModel\\:\\:\\$eventData has no type specified\\.$#',
 	'count' => 1,
diff --git a/system/BaseModel.php b/system/BaseModel.php
index 9b085efa8400..cd2bdd6beb22 100644
--- a/system/BaseModel.php
+++ b/system/BaseModel.php
@@ -246,84 +246,84 @@ abstract class BaseModel
     /**
      * Callbacks for beforeInsert
      *
-     * @var array
+     * @var list<string>
      */
     protected $beforeInsert = [];
 
     /**
      * Callbacks for afterInsert
      *
-     * @var array
+     * @var list<string>
      */
     protected $afterInsert = [];
 
     /**
      * Callbacks for beforeUpdate
      *
-     * @var array
+     * @var list<string>
      */
     protected $beforeUpdate = [];
 
     /**
      * Callbacks for afterUpdate
      *
-     * @var array
+     * @var list<string>
      */
     protected $afterUpdate = [];
 
     /**
      * Callbacks for beforeInsertBatch
      *
-     * @var array
+     * @var list<string>
      */
     protected $beforeInsertBatch = [];
 
     /**
      * Callbacks for afterInsertBatch
      *
-     * @var array
+     * @var list<string>
      */
     protected $afterInsertBatch = [];
 
     /**
      * Callbacks for beforeUpdateBatch
      *
-     * @var array
+     * @var list<string>
      */
     protected $beforeUpdateBatch = [];
 
     /**
      * Callbacks for afterUpdateBatch
      *
-     * @var array
+     * @var list<string>
      */
     protected $afterUpdateBatch = [];
 
     /**
      * Callbacks for beforeFind
      *
-     * @var array
+     * @var list<string>
      */
     protected $beforeFind = [];
 
     /**
      * Callbacks for afterFind
      *
-     * @var array
+     * @var list<string>
      */
     protected $afterFind = [];
 
     /**
      * Callbacks for beforeDelete
      *
-     * @var array
+     * @var list<string>
      */
     protected $beforeDelete = [];
 
     /**
      * Callbacks for afterDelete
      *
-     * @var array
+     * @var list<string>
      */
     protected $afterDelete = [];