Update README.md

Author: satran004

README.md

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 A client library for Cardano in Java. This library simplifies the interaction with Cardano blockchain from a Java application.
 
-### **Latest Stable Version**: [0.5.1](https://github.com/bloxbean/cardano-client-lib/releases/tag/v0.5.1)
-
-### **Latest Beta**: [0.6.0-beta1](https://github.com/bloxbean/cardano-client-lib/releases/tag/v0.6.0-beta1) (Conway Era Ready)
+### **Latest Stable Version**: [0.6.2](https://github.com/bloxbean/cardano-client-lib/releases/tag/v0.6.2)
 
 ### More details --> [Documentation](https://cardano-client.dev/)