This file is intended to be a list of source incompatible changes 
that have been made since icqlib-1.0.0.

2000-12-19: ICQLINKs have been reworked.  Members that provide no useful 
information to the library client have been moved to a private structure 
attached to the public ICQLINK, ICQLINK_private.  See icqlib.h.  ICQLINK 
memory management now must be performed by the library (which is probably 
how it should have always been), with icq_ICQLINKNew and 
icq_ICQLINKDelete.

2000-12-19: Your application is no longer responsible for allocating and
freeing the ICQLINK structure, rather, it is returned as the result of a
icq_ICQLINKNew call.  icq_ICQLINKDelete will free an ICQLINK structure.

2000-12-19: icq_Init and icq_Done have been removed.  Use icq_ICQLINKNew
and icq_ICQLINKDelete instead.  In addition, icq_ICQLINKNew has gained an
additional parameter: a flag to turn TCP on or off.

2001-01-16: The chat and file request/session interface has been
significantly reworked.  icq_RequestNotify now will return
ICQ_NOTIFY_SUCCESS as soon as the file or chat *request* is complete, but
not before returning a handle to an icq_ChatSession or icq_FileSession.  
See ICQ_NOTIFY_CHATSESSION and ICQ_NOTIFY_FILESESSION.  All future
operations on the chat or file session should be performed using this
handle and the appropriate icq_ChatSession* or icq_FileSession* functions.

Old function             New function

icq_TCPCloseChat         icq_ChatSessionClose
icq_TCPSendChatData      icq_ChatSessionSendData
icq_TCPSendChatData_n    icq_ChatSessionSendData_n

In addition, notification messages for chat and file sessions come back 
through two new callbacks: icq_ChatNotify and icq_FileNotify.  
icq_ChatSession has also been exposed in the public interface, as well as 
a number of chat status constants.

Old notification                       New notification

icq_RequestNotify/ICQ_NOTIFY_CHAT      icq_ChatNotify/CHAT_NOTIFY_STATUS
icq_RequestNotify/ICQ_NOTIFY_CHATDATA  icq_ChatNotify/CHAT_NOTIFY_DATA
icq_RequestNotify/ICQ_NOTIFY_SUCCESS   icq_ChatNotify/CHAT_NOTIFY_CLOSE

icq_RequestNotify/ICQ_NOTIFY_FILE      icq_FileNotify/FILE_NOTIFY_STATUS
icq_RequestNotify/ICQ_NOTIFY_FILEDATA  icq_FileNotify/FILE_NOTIFY_DATAPACKET
icq_RequestNotify/ICQ_NOTIFY_SUCCESS   icq_FileNotify/FILE_NOTIFY_CLOSE

Finally, some fake file status values now come through separate 
FILE_NOTIFY events, and one has been renamed:

Old status                         New Notification/Status

FILE_STATUS_NEW_SPEED              icq_FileNotify/FILE_NOTIFY_NEW_SPEED
FILE_STATUS_STOP_FILE              icq_FileNotify/FILE_NOTIFY_STOP_FILE
FILE_STATUS_INITIALIZED            FILE_STATUS_INITIALIZING

2001-01-16: icqlib now reports when it needs read and write ready 
notifications for sockets through icq_SocketNotify.  Install a callback 
for the icq_SocketNotify function, which takes the following parameters:

   void (*icq_SocketNotify)(int socket, int type, int status);

socket will be the socket number, type will be either ICQ_SOCKET_READ or 
ICQ_SOCKET_WRITE, and status will be either true or false, true indicating 
icqlib now needs notification, and false indicating icqlib no longer needs 
notification.  Your application should use this to install some sort of 
socket notification object (e.g., in kicq, we use a QSocketNotifier).  
When the socket is ready, you should invoke the new 
icq_HandleReadySocket(socket, type) function.

This mechanism is completely optional - you can simply set up a timer to 
call icq_Main every 1/10 of a second or so.  This has the disadvantage of 
wasting CPU cycles and poor TCP file transfer performance, though.

2001-02-20: The icq_SetTimeout callback has been moved outside of the 
ICQLINK structure, and icq_HandleTimeout no longer requires an ICQLINK 
parameter.

2001-03-03: ICQLINK is now icq_Link, to fit better with the icqlib
naming conventions.  ICQLINK should be considered depreciated - it is 
still supported for now, but may disappear in a future icqlib release.
