Amazon Lex
Developer Guide

Document History for Amazon Lex

  • Latest documentation update: May 8, 2018

The following table describes important changes in each release of Amazon Lex. For notification about updates to this documentation, you can subscribe to an RSS feed.

Change Description Date

Region expansion

Amazon Lex is now available in US West (Oregon) (us-west-2).

May 8, 2018

New feature

Added support for exporting and importing in Amazon Lex format. For more information, see Importing and Exporting Amazon Lex Bots, Intents, and Slot Types.

February 13, 2018

New feature

Amazon Lex now supports additional response messages for bots, For more information, see Responses.

February 8, 2018

Region expansion

Amazon Lex is now available in EU (Ireland) (eu-west-1).

November 21, 2017

New feature

Added support for deploying Amazon Lex bots on Kik. For more information, see Integrating an Amazon Lex Bot with Kik.

November 20, 2017

New feature

Added support for new built-in slot types and request attributes. For more information, see Built-in Slot Types and Setting Request Attributes .

November 3, 2017

New feature

Added export to Alexa Skills Kit feature. For more information, see Exporting to an Alexa Skill.

September 7, 2017

New feature

Added synonym support for slot type values. For more information, see Custom Slot Types .

August 31, 2017

New feature

Added AWS CloudTrail integration. For more information, see Monitoring Amazon Lex API Calls with AWS CloudTrail Logs .

August 15, 2017

Expanded documentation

Added Getting Started examples for the AWS CLI. For more information, see

May 22, 2017

New guide

This is the first release of the Amazon Lex User Guide.

April 19, 2017