diff --git a/docs/en/commercial/cloud.md b/docs/en/commercial/cloud.md
index 91d2061c0af1536428edc50d5d7543dcc87cdcfd..953a0ab5748147bbf4beb886cb02c7a656e06e6f 100644
--- a/docs/en/commercial/cloud.md
+++ b/docs/en/commercial/cloud.md
@@ -31,9 +31,10 @@ toc_title: Cloud
 
 ## Alibaba Cloud {#alibaba-cloud}
 
-Alibaba Cloud Managed Service for ClickHouse [China Site](https://www.aliyun.com/product/clickhouse) (Will be available at international site at May, 2021) provides the following key features:
--   Highly reliable cloud disk storage engine based on Alibaba Cloud Apsara distributed system
--   Expand capacity on demand without manual data migration
+Alibaba Cloud Managed Service for ClickHouse. [China Site](https://www.aliyun.com/product/clickhouse) (will be available at the international site in May 2021). Provides the following key features:
+
+-   Highly reliable cloud disk storage engine based on [Alibaba Cloud Apsara](https://www.alibabacloud.com/product/apsara-stack) distributed system
+-   Expand capacity on-demand without manual data migration
 -   Support single-node, single-replica, multi-node, and multi-replica architectures, and support hot and cold data tiering
 -   Support access allow-list, one-key recovery, multi-layer network security protection, cloud disk encryption
 -   Seamless integration with cloud log systems, databases, and data application tools
diff --git a/docs/en/interfaces/third-party/client-libraries.md b/docs/en/interfaces/third-party/client-libraries.md
index c08eec61b1c2faeff72b62ed29976e60d7ad3ea2..f5c8528917140db4032d7c5b18dd882e7ab41411 100644
--- a/docs/en/interfaces/third-party/client-libraries.md
+++ b/docs/en/interfaces/third-party/client-libraries.md
@@ -23,6 +23,7 @@ toc_title: Client Libraries
     -   [SeasClick C++ client](https://github.com/SeasX/SeasClick)
     -   [one-ck](https://github.com/lizhichao/one-ck)
     -   [glushkovds/phpclickhouse-laravel](https://packagist.org/packages/glushkovds/phpclickhouse-laravel)
+    -   [kolya7k ClickHouse PHP extension](https://github.com//kolya7k/clickhouse-php)
 -   Go
     -   [clickhouse](https://github.com/kshvakov/clickhouse/)
     -   [go-clickhouse](https://github.com/roistat/go-clickhouse)
diff --git a/docs/ru/commercial/cloud.md b/docs/ru/commercial/cloud.md
index 610f0f00a99329586231a1a0655521029b3655b6..6c192a34f9f4a59793fe309734ba4a81079525e2 100644
--- a/docs/ru/commercial/cloud.md
+++ b/docs/ru/commercial/cloud.md
@@ -29,3 +29,14 @@ toc_title: "Поставщики облачных услуг ClickHouse"
 -   cross-az масштабирование для повышения производительности и обеспечения высокой доступности
 -   встроенный мониторинг и редактор SQL-запросов
 
+## Alibaba Cloud {#alibaba-cloud}
+
+Управляемый облачный сервис Alibaba для ClickHouse: [китайская площадка](https://www.aliyun.com/product/clickhouse), будет доступен на международной площадке в мае 2021 года. Сервис предоставляет следующие возможности:
+
+-   надежный сервер для облачного хранилища на основе распределенной системы [Alibaba Cloud Apsara](https://www.alibabacloud.com/product/apsara-stack);
+-   расширяемая по запросу емкость, без переноса данных вручную;
+-   поддержка одноузловой и многоузловой архитектуры, архитектуры с одной или несколькими репликами, а также многоуровневого хранения cold и hot data;
+-   поддержка прав доступа, one-key восстановления, многоуровневая защита сети, шифрование облачного диска;
+-   полная интеграция с облачными системами логирования, базами данных и инструментами обработки данных;
+-   встроенная платформа для мониторинга и управления базами данных;
+-   техническая поддержка от экспертов по работе с базами данных.
\ No newline at end of file
diff --git a/docs/ru/sql-reference/statements/alter/user.md b/docs/ru/sql-reference/statements/alter/user.md
index 604eff9de15f51a2da836d52a84750c72eba428c..53d090f8eaba4711d85c7624f4062d092da34fd1 100644
--- a/docs/ru/sql-reference/statements/alter/user.md
+++ b/docs/ru/sql-reference/statements/alter/user.md
@@ -12,10 +12,10 @@ toc_title: USER
 ``` sql
 ALTER USER [IF EXISTS] name1 [ON CLUSTER cluster_name1] [RENAME TO new_name1] 
         [, name2 [ON CLUSTER cluster_name2] [RENAME TO new_name2] ...]
-    [IDENTIFIED [WITH {PLAINTEXT_PASSWORD|SHA256_PASSWORD|DOUBLE_SHA1_PASSWORD}] BY {'password'|'hash'}]
-    [[ADD|DROP] HOST {LOCAL | NAME 'name' | REGEXP 'name_regexp' | IP 'address' | LIKE 'pattern'} [,...] | ANY | NONE]
+    [NOT IDENTIFIED | IDENTIFIED {[WITH {no_password | plaintext_password | sha256_password | sha256_hash | double_sha1_password | double_sha1_hash}] BY {'password' | 'hash'}} | {WITH ldap SERVER 'server_name'} | {WITH kerberos [REALM 'realm']}]
+    [[ADD | DROP] HOST {LOCAL | NAME 'name' | REGEXP 'name_regexp' | IP 'address' | LIKE 'pattern'} [,...] | ANY | NONE]
     [DEFAULT ROLE role [,...] | ALL | ALL EXCEPT role [,...] ]
-    [SETTINGS variable [= value] [MIN [=] min_value] [MAX [=] max_value] [READONLY|WRITABLE] | PROFILE 'profile_name'] [,...]
+    [SETTINGS variable [= value] [MIN [=] min_value] [MAX [=] max_value] [READONLY | WRITABLE] | PROFILE 'profile_name'] [,...]
 ```  
 
 Для выполнения `ALTER USER` необходима привилегия [ALTER USER](../grant.md#grant-access-management).
diff --git a/docs/ru/sql-reference/statements/create/user.md b/docs/ru/sql-reference/statements/create/user.md
index 68277d67052f3a82c0c638d15d7748c5225ccd5e..a487d1ac593a43a10ec3d7cba955409286202d49 100644
--- a/docs/ru/sql-reference/statements/create/user.md
+++ b/docs/ru/sql-reference/statements/create/user.md
@@ -9,15 +9,17 @@ toc_title: "Пользователь"
 
 Синтаксис:
 
-```sql
+``` sql
 CREATE USER [IF NOT EXISTS | OR REPLACE] name1 [ON CLUSTER cluster_name1] 
         [, name2 [ON CLUSTER cluster_name2] ...]
-    [IDENTIFIED [WITH {NO_PASSWORD|PLAINTEXT_PASSWORD|SHA256_PASSWORD|SHA256_HASH|DOUBLE_SHA1_PASSWORD|DOUBLE_SHA1_HASH}] BY {'password'|'hash'}]
+    [NOT IDENTIFIED | IDENTIFIED {[WITH {no_password | plaintext_password | sha256_password | sha256_hash | double_sha1_password | double_sha1_hash}] BY {'password' | 'hash'}} | {WITH ldap SERVER 'server_name'} | {WITH kerberos [REALM 'realm']}]
     [HOST {LOCAL | NAME 'name' | REGEXP 'name_regexp' | IP 'address' | LIKE 'pattern'} [,...] | ANY | NONE]
     [DEFAULT ROLE role [,...]]
-    [SETTINGS variable [= value] [MIN [=] min_value] [MAX [=] max_value] [READONLY|WRITABLE] | PROFILE 'profile_name'] [,...]
+    [SETTINGS variable [= value] [MIN [=] min_value] [MAX [=] max_value] [READONLY | WRITABLE] | PROFILE 'profile_name'] [,...]
 ```
 
+`ON CLUSTER` позволяет создавать пользователей в кластере, см. [Распределенные DDL](../../../sql-reference/distributed-ddl.md).
+
 ## Идентификация
 
 Существует несколько способов идентификации пользователя:
@@ -28,6 +30,8 @@ CREATE USER [IF NOT EXISTS | OR REPLACE] name1 [ON CLUSTER cluster_name1]
 - `IDENTIFIED WITH sha256_hash BY 'hash'`
 - `IDENTIFIED WITH double_sha1_password BY 'qwerty'`
 - `IDENTIFIED WITH double_sha1_hash BY 'hash'`
+- `IDENTIFIED WITH ldap SERVER 'server_name'`
+- `IDENTIFIED WITH kerberos` or `IDENTIFIED WITH kerberos REALM 'realm'`
 
 ## Пользовательский хост