recent changelog updates

Author: flashnuke

README.md

@@ -174,7 +174,7 @@ If the following error is encountered: `fatal error: json/json.h: No such file o
 # Lined up
 * constexpr for endpoints + api base after the release of c++20 (constexpr support for `std::string`)
 
-**Latest `Version` update: `2020-18-04` (Binance API Changelogs have been implemented up to this date)**
+**Latest `Version` update: `2021-24-05` (Binance API Changelogs have been implemented up to this date)**
 
 
 # Release Notes