Updated for 3.1.1

WHATS_NEW_LPC.md

@@ -5,6 +5,12 @@ Please note
 ============
 The sample board.txt files which are here: https://github.com/gloomyandy/RepRapFirmware/tree/v3.01-dev-lpc/LPC/ExampleBoardConfig are out of date and may contain invalid settings. In addition the current software is not very good at detecting errors in these files and providing feedback to the user. Hopefully this will be improved soon, but for now the best way to check if the settings are correct is to issue an M122 p200 and check that the configuration matches your board. The current best source for the available settings is the configuration source: https://github.com/gloomyandy/RepRapFirmware/blob/v3.01-dev-lpc/src/LPC/BoardConfig.cpp#L33
 
+Version 3.1.1
+=============
+* Updated to include bugfixes from DC42
+* Fixed problem with default MAC address for Ethernet builds that resulted in some routers not providing and IP address.
+* Added board configuration for Azteeg X5 Mini V3 (Thanks to Jay_s)
+
 Version 3.1.0
 ============
 Updated to the 3.1.0 release of RRF from DC42