Added

• Build: Development build now include instrumentation code, updated build scripts
  • npm run build will build for development with instrumentation code
  • npm run prepublishOnly will build for production
  • npm run watch will also run Webpack in watch loop
• Build: Automated testing using visual regression testing technique in #1323
  • Docker-based automated testing using headless Chrome and Web Driver
  • Screenshot comparison using jest-image-snapshot and pixelmatch
  • Code is instrumented using istanbul
  • Test report is hosted on Coveralls
• Added French localization, by @tao1 in PR #1327
• Fix #1344, by updating README.md and adding validation logic for userID props, in #1447
  • If userID props present and also embedded in Direct Line token, will use the one from Direct Line token
  • If userID props present, they must be string and not prefixed with dl_, to avoid confusion between userID props and Direct Line embedded user ID (which is forgery-proof)
  • If userID props does not pass the validation test or not specified, Web Chat will use default-user instead
• Added support for Cognitive Services Speech to Text and Text to Speech in PR #1442

Changed

• Core: Saga will run after custom middleware, in #1331
  • Custom middleware run before saga to allow user to modify default behavior
• Build: Bump dependencies, in #1303
  • @babel
    • @babel/cli@7.1.2
    • @babel/core@7.1.2
    • @babel/plugin-proposal-class-properties@7.1.0
    • @babel/plugin-proposal-object-rest-spread@7.0.0
    • @babel/plugin-transform-runtime@7.1.0
    • @babel/preset-env@7.1.0
    • @babel/preset-react@7.0.0
    • @babel/preset-typescript@7.1.0
    • @babel/runtime@7.1.2
  • concurrently@4.0.1
  • jest
    • babel-jest@23.6.0
    • jest@23.6.0
    • ts-jest@23.10.4
  • typescript@3.1.6
  • webpack
    • webpack@4.24.0
    • webpack-command@0.4.2
• Fix Russian localization by @odysseus1973 in PR #1377

Fixed

• Fix #1397. Patched activities without from field, in PR #1405
• Fix #1237. Added new sample called migration, by @corinagum in PR #1398
• Fix #1332. Updated sample names and add table to README, by @corinagum in PR #1435
• Fix #1125. Added error handling for Adaptive Card JSON render, by @corinagum in PR #1395
• Build: Webpack watch mode now emits non-minified code for shorter dev RTT, in #1331

Samples

• Backchannel: Inject custom data into every POST_ACTIVITY, in #1331
• UI: Minimizable Web Chat, in #1290
• Others: Using Web Chat v3, in #1287
• Speech: Cognitive Services Speech to Text and Text to Speech (both subscription key and authorization token flow)
• Speech: Cognitive Services Speech to Text using lexical result (text normalization)