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                               Release Notes PN 93009414
                                
                                     XBee 865/868LP

                                      Version 8074
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INTRODUCTION
  These release notes document changes made to the 80kbps firmware on the XBee 
  865/868LP radios.


ENHANCEMENTS
  - None, but major performance enhancements, especially with sleeping routers


BUG FIXES
 - Synchronized sleeping router nodes were locking up due to buffer depletions
   The serial port wouldn't accept input.

 - Sleep synchronization messages were not prioritized over data packets.

 - With route discoveries disabled, routes were being deleted. This should not
   happen because the whole point is to use previously learned routes.

 - MISO pin would not go high when configured as an output high

 - SPI interface was not functional

 - ED command issued in API mode was returning transparent data

 - RO setting of 0 would not allow transmissions to occur in transparent mode

 - Associate LED was not blinking at the right interval. Now, it only blinks
   in sleeping router mode.

 - Serial port was locking up when receiving data in API mode 2 at a high rate
   with CTS flow control ignored or not used.

 - Buffer resource efficiency was improved to only use the buffer size needed
   for a given transmission in API mode. This increases module data capacity

 - ATCB1 issued to a remote node was causing a watchdog reset

 - Fixed remote IS and ED commands when sent with a frame ID of 0

 - Test Link response contained some invalid fields


KNOWN LIMITATIONS
 - The serial port is non-responsive for approximately 70ms after a baud 
   rate (ATBR) change is applied either by the ATAC command or by exiting 
   command mode. To work around this issue the user should insert a 100ms
   delay after applying a baud rate change.


HISTORY
  Version 8072

  Version 8059 (Initial Release)
    KNOWN LIMITATIONS
      - Setting the ATIR parameter to sample faster than the module can transmit
        the samples will cause the module to not sleep when using ATSM4.

      - When sending a directed broadcast (0x80 on tx option), the transmit 
        status frame will always indicate that a route discovery has taken place,
        (discovery status byte = 0x02).