If anyone wonders where have gone 2.66v I just forgot to write article. So all changes from 2.66v and 2.67v are

1. Chat's will track in what state operator was while he was accepting chat. This will be used in Agents statistic.
2. If widget is closed in one tab it will be closed in another one also.
3. Identification "was last operator message seen by visitor" or not.
4. Moving mouse over icon will show time since last sync.

For update just follow standard update procedure For manual update it's update_140.sql and update_141.sql

Possibility to send automatic messages to customers to simplify agents' work.
There are two types of messages: message(s) sent while a customer is queuing and message(s) sent if a customer isn't replying.

1. Message(s) sent while a customer is queuing
   This message will be sent if a customer is pending for X time and no operator is assigned to chat.
   User should be able:

• Compose a message
• Set the time in seconds after which the message is sent
• Assign Department(s)
• Add more than one massage (for example: first message is sent after 45 sec of pending, second message sent after 90 sec of pending etc.)

2. Messages sent if a customer isn't replying

This messages will be sent in case an Operator was the last one to send a message + the visitor hasn't replied for X time + the visitor hasn't left chat (closed the chat explicitly)
User should be able to:

• Compose a message
• Set the time in seconds after which the message is sent if the visitor wasn't replying
• Assign Department(s)
• Add more than one massage (for example: first message is sent after 90 sec of not replying, second message sent after 180 sec of not replying)

For update just follow standard update procedure For manual update it's update_139.sql