diff --git a/extensions/elasticsearch/ActiveRecord.php b/extensions/elasticsearch/ActiveRecord.php
index 097cbc46ab8..4db97ef7f6f 100644
--- a/extensions/elasticsearch/ActiveRecord.php
+++ b/extensions/elasticsearch/ActiveRecord.php
@@ -395,8 +395,9 @@ public function insert($runValidation = true, $attributes = null, $options = ['o
             }
             $this->_version = $response['_version'];
             $this->_score = null;
-            $this->setOldAttributes($values);
+
             $this->afterSave(true);
+            $this->setOldAttributes($values);
 
             return true;
         }
diff --git a/extensions/elasticsearch/CHANGELOG.md b/extensions/elasticsearch/CHANGELOG.md
index 0ee84eb1648..c74820e2902 100644
--- a/extensions/elasticsearch/CHANGELOG.md
+++ b/extensions/elasticsearch/CHANGELOG.md
@@ -9,6 +9,7 @@ Yii Framework 2 elasticsearch extension Change Log
 - Enh #1313: made index and type available in `ActiveRecord::instantiate()` to allow creating records based on elasticsearch type when doing cross index/type search (cebe)
 - Enh #1382: Added a debug toolbar panel for elasticsearch (cebe)
 - Enh #1765: Added support for primary key path mapping, pk can now be part of the attributes when mapping is defined (cebe)
+- Enh #2892: ActiveRecord dirty attributes are now reset after call to `afterSave()` so information about changed attributes is available in `afterSave`-event (cebe)
 - Chg #1765: Changed handling of ActiveRecord primary keys, removed getId(), use getPrimaryKey() instead (cebe)
 - Chg #2281: Renamed `ActiveRecord::create()` to `populateRecord()` and changed signature. This method will not call instantiate() anymore (cebe)
 - Chg #2146: Removed `ActiveRelation` class and moved the functionality to `ActiveQuery`.
diff --git a/extensions/mongodb/ActiveRecord.php b/extensions/mongodb/ActiveRecord.php
index 66f9267bddb..f157fd96f23 100644
--- a/extensions/mongodb/ActiveRecord.php
+++ b/extensions/mongodb/ActiveRecord.php
@@ -242,10 +242,9 @@ protected function insertInternal($attributes = null)
         }
         $newId = static::getCollection()->insert($values);
         $this->setAttribute('_id', $newId);
-        foreach ($values as $name => $value) {
-            $this->setOldAttribute($name, $value);
-        }
+
         $this->afterSave(true);
+        $this->setOldAttributes($values);
 
         return true;
     }
@@ -262,7 +261,6 @@ protected function updateInternal($attributes = null)
         $values = $this->getDirtyAttributes($attributes);
         if (empty($values)) {
             $this->afterSave(false);
-
             return 0;
         }
         $condition = $this->getOldPrimaryKey(true);
@@ -281,10 +279,10 @@ protected function updateInternal($attributes = null)
             throw new StaleObjectException('The object being updated is outdated.');
         }
 
+        $this->afterSave(false);
         foreach ($values as $name => $value) {
             $this->setOldAttribute($name, $this->getAttribute($name));
         }
-        $this->afterSave(false);
 
         return $rows;
     }
diff --git a/extensions/mongodb/file/ActiveRecord.php b/extensions/mongodb/file/ActiveRecord.php
index eec4b7bef93..085db599f95 100644
--- a/extensions/mongodb/file/ActiveRecord.php
+++ b/extensions/mongodb/file/ActiveRecord.php
@@ -147,10 +147,9 @@ protected function insertInternal($attributes = null)
             $newId = $collection->insert($values);
         }
         $this->setAttribute('_id', $newId);
-        foreach ($values as $name => $value) {
-            $this->setOldAttribute($name, $value);
-        }
+
         $this->afterSave(true);
+        $this->setOldAttributes($values);
 
         return true;
     }
@@ -167,7 +166,6 @@ protected function updateInternal($attributes = null)
         $values = $this->getDirtyAttributes($attributes);
         if (empty($values)) {
             $this->afterSave(false);
-
             return 0;
         }
 
@@ -219,10 +217,10 @@ protected function updateInternal($attributes = null)
             }
         }
 
+        $this->afterSave(false);
         foreach ($values as $name => $value) {
             $this->setOldAttribute($name, $this->getAttribute($name));
         }
-        $this->afterSave(false);
 
         return $rows;
     }
diff --git a/extensions/redis/ActiveRecord.php b/extensions/redis/ActiveRecord.php
index ae9a3d3ded3..77883ec7b31 100644
--- a/extensions/redis/ActiveRecord.php
+++ b/extensions/redis/ActiveRecord.php
@@ -146,8 +146,8 @@ public function insert($runValidation = true, $attributes = null)
             }
             $db->executeCommand('HMSET', $args);
 
-            $this->setOldAttributes($values);
             $this->afterSave(true);
+            $this->setOldAttributes($values);
 
             return true;
         }
diff --git a/extensions/redis/CHANGELOG.md b/extensions/redis/CHANGELOG.md
index 8c88fe574e3..ac85a2cf66a 100644
--- a/extensions/redis/CHANGELOG.md
+++ b/extensions/redis/CHANGELOG.md
@@ -6,6 +6,7 @@ Yii Framework 2 redis extension Change Log
 
 - Bug #1993: afterFind event in AR is now called after relations have been populated (cebe, creocoder)
 - Enh #1773: keyPrefix property of Session and Cache is not restricted to alnum characters anymore (cebe)
+- Enh #2892: ActiveRecord dirty attributes are now reset after call to `afterSave()` so information about changed attributes is available in `afterSave`-event (cebe)
 - Chg #2281: Renamed `ActiveRecord::create()` to `populateRecord()` and changed signature. This method will not call instantiate() anymore (cebe)
 - Chg #2146: Removed `ActiveRelation` class and moved the functionality to `ActiveQuery`.
              All relational queries are now directly served by `ActiveQuery` allowing to use
diff --git a/extensions/sphinx/ActiveRecord.php b/extensions/sphinx/ActiveRecord.php
index bd9832a6f1c..87efa0e5ae2 100644
--- a/extensions/sphinx/ActiveRecord.php
+++ b/extensions/sphinx/ActiveRecord.php
@@ -416,10 +416,9 @@ private function insertInternal($attributes = null)
         if (!$command->execute()) {
             return false;
         }
-        foreach ($values as $name => $value) {
-            $this->setOldAttribute($name, $value);
-        }
+
         $this->afterSave(true);
+        $this->setOldAttributes($values);
 
         return true;
     }
@@ -512,7 +511,6 @@ protected function updateInternal($attributes = null)
         $values = $this->getDirtyAttributes($attributes);
         if (empty($values)) {
             $this->afterSave(false);
-
             return 0;
         }
 
@@ -554,10 +552,10 @@ protected function updateInternal($attributes = null)
             }
         }
 
+        $this->afterSave(false);
         foreach ($values as $name => $value) {
             $this->setOldAttribute($name, $this->getAttribute($name));
         }
-        $this->afterSave(false);
 
         return $rows;
     }
diff --git a/extensions/sphinx/CHANGELOG.md b/extensions/sphinx/CHANGELOG.md
index cd2496789e8..2fed0efb65c 100644
--- a/extensions/sphinx/CHANGELOG.md
+++ b/extensions/sphinx/CHANGELOG.md
@@ -7,6 +7,7 @@ Yii Framework 2 sphinx extension Change Log
 - Bug #1993: afterFind event in AR is now called after relations have been populated (cebe, creocoder)
 - Bug #2160: SphinxQL does not support `OFFSET` (qiangxue, romeo7)
 - Enh #1398: Refactor ActiveRecord to use BaseActiveRecord class of the framework (klimov-paul)
+- Enh #2892: ActiveRecord dirty attributes are now reset after call to `afterSave()` so information about changed attributes is available in `afterSave`-event (cebe)
 - Chg #2281: Renamed `ActiveRecord::create()` to `populateRecord()` and changed signature. This method will not call instantiate() anymore (cebe)
 - Chg #2146: Removed `ActiveRelation` class and moved the functionality to `ActiveQuery`.
              All relational queries are now directly served by `ActiveQuery` allowing to use
diff --git a/framework/CHANGELOG.md b/framework/CHANGELOG.md
index f8df6ae733e..2416f2dc25a 100644
--- a/framework/CHANGELOG.md
+++ b/framework/CHANGELOG.md
@@ -156,6 +156,7 @@ Yii Framework 2 Change Log
 - Enh #2735: Added support for `DateTimeInterface` in `Formatter` (ivokund)
 - Enh #2756: Added support for injecting custom `isEmpty` check for all validators (qiangxue)
 - Enh #2775: Added `yii\base\Application::bootstrap` and `yii\base\BootstrapInterface` to support running bootstrap classes when starting an application (qiangxue)
+- Enh #2892: ActiveRecord dirty attributes are now reset after call to `afterSave()` so information about changed attributes is available in `afterSave`-event (cebe)
 - Enh: Added support for using arrays as option values for console commands (qiangxue)
 - Enh: Added `favicon.ico` and `robots.txt` to default application templates (samdark)
 - Enh: Added `Widget::autoIdPrefix` to support prefixing automatically generated widget IDs (qiangxue)
diff --git a/framework/db/ActiveRecord.php b/framework/db/ActiveRecord.php
index 6534dd6ac25..a9b563c1fc2 100644
--- a/framework/db/ActiveRecord.php
+++ b/framework/db/ActiveRecord.php
@@ -450,10 +450,9 @@ protected function insertInternal($attributes = null)
                 }
             }
         }
-        foreach ($values as $name => $value) {
-            $this->setOldAttribute($name, $value);
-        }
+
         $this->afterSave(true);
+        $this->setOldAttributes($values);
 
         return true;
     }
diff --git a/framework/db/BaseActiveRecord.php b/framework/db/BaseActiveRecord.php
index a62308cbd1c..0addba3cbbe 100644
--- a/framework/db/BaseActiveRecord.php
+++ b/framework/db/BaseActiveRecord.php
@@ -564,7 +564,6 @@ public function getDirtyAttributes($names = null)
                 }
             }
         }
-
         return $attributes;
     }
 
@@ -654,7 +653,6 @@ public function update($runValidation = true, $attributes = null)
         if ($runValidation && !$this->validate($attributes)) {
             return false;
         }
-
         return $this->updateInternal($attributes);
     }
 
@@ -684,8 +682,7 @@ public function updateAttributes($attributes)
                 $attrs[] = $name;
             }
         }
-
-        return $this->update(false, $attrs);
+        return $this->updateInternal($attrs);
     }
 
     /**
@@ -700,7 +697,6 @@ protected function updateInternal($attributes = null)
         $values = $this->getDirtyAttributes($attributes);
         if (empty($values)) {
             $this->afterSave(false);
-
             return 0;
         }
         $condition = $this->getOldPrimaryKey(true);
@@ -719,10 +715,10 @@ protected function updateInternal($attributes = null)
             throw new StaleObjectException('The object being updated is outdated.');
         }
 
+        $this->afterSave(false);
         foreach ($values as $name => $value) {
             $this->_oldAttributes[$name] = $this->_attributes[$name];
         }
-        $this->afterSave(false);
 
         return $rows;
     }
@@ -751,7 +747,6 @@ public function updateCounters($counters)
                 $this->_attributes[$name] += $value;
                 $this->_oldAttributes[$name] = $this->_attributes[$name];
             }
-
             return true;
         } else {
             return false;