Hi,

1. Multilanguage support for canned messages and auto responders.
2. Survey grouping fix
3. Save user browser language within chat.
4. Reopen chat in same place then chat information was edited.
5. Archive enhancements.
6. Video embed support. If uploaded file from visitor is video format. Video will be played directly in chat window.

For update just follow standard update procedure For manual update it's update_155.sql