v2.0.8

Add API for searching users.

v2.0.7.4

1. Add API for reverse query chat record list;
2. Increase the API of search group;
3. Adjust the input parameters of the search local message API.

v2.0.7.3

Added @AllMember API.

v2.0.7+2

1. Fix the problem that there is a chance that the session record cannot be obtained;
2. Adjust the formal parameters for creating "@ message".

v2.0.7+1

increase: some field.

v2.0.7

Increase:
API to clear historical messages;
API for setting session to private chat.
API to delete all sessions locally.
repair:
Fix forwarding message status error problem;

v2.0.6

Increase:

1. The function that calls back to the foreground;
2. Heartbeat function;
3. The function of banning the group and group members;
4. The function to mark the message read according to the session ID;

v2.0.5

Added:

1. API for disbanding groups, and delete cloud chat records;
2. API for searching messages, including searching by keyword and by message type.

v2.0.4

1. add group read receipt;
2. Add signaling message;

v2.0.3

add some new api.
fix bugs.