Amazon Lex is a service for building natural language conversational interfaces using voice and text into your application. Earlier this year, we launched an enhanced V2 management console and APIs. The V2 API is makes it easier for bot developers to add new languages to a bot and also deliver natural conversational experiences such as wait and continue (“Can you wait while I get my credit card?”). Today, we introduce tooling to automate migration of bots from Lex V1 Console to the Lex V2 Console. The migration tool uses existing intents and slot types to create corresponding resources in the Lex V2 Console.
Source:: Amazon AWS