diff --git a/README.md b/README.md
index bb2bbc92..118ad265 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,14 @@ A powerfull PHP library for the Bitrix24 REST API
 ## Promo code for new Bitrix24 accounts 
 - `b24io5gb` — add 5GB on your Bitrix24
 - `b24iousers`  — add 12 users on your Bitrix24  
-
 [Register new Bitrix24 account](https://www.bitrix24.ru/create.php?p=255670)
 
+Bitrix24-PHP-SDK has a two branches
+- 1.x with 5.x php support, bugfix and minor updates only
+- 2.x only with 7.3+ php support, active work 
+
+Current master is 1.x branch
+
 ## Requirements
 - php: >=5.3.2
 - ext-json: *