diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49e2360..1ba2a14 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,6 @@
 # Telegram Bot API for PHP Change Log
 
-## 0.3.0 under development
+## 0.3.0 July 7, 2024
 
 - New #100: Add `refundedPayment` parameter to `Message` type and add `RefundedPayment` type.
 - Chg #99: Add `ResultFactory` and value processors, simplify type and method classes.
diff --git a/README.md b/README.md
index 5dfe496..2a4dccf 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@
 
 The package provides a simple and convenient way to interact with the Telegram Bot API.
 
-Telegram Bot API 7.6 (July 1, 2024) is full supported.
+Telegram Bot API 7.7 (July 7, 2024) is full supported.
 
 ## Requirements