Changes Amazon Lex now supports AMAZON.AlphaNumeric with regular expressions.
Changes Amazon Lex now supports conversation logs and slot obfuscation.
Changes Amazon Lex now supports Sentiment Analysis
Changes Amazon Lex builds bot in two stages. After the first it sets status to READY_BASIC_TESTING. In this state the bot will match user inputs that exactly match the utterances configured for the bot's intents and values in the slot types.
Changes Amazon Lex now provides the ability to export and import your Amazon Lex chatbot definition as a JSON file.
Changes You can now define a response for your Amazon Lex chatbot directly from the AWS console. A response consists of messages dynamically selected from a group of pre-defined messages, populated by the developer.