+ * - The \ref SPI_Init() routine's parameters have changed, so that the clock polarity and data sampling modes can be set. See\r
+ * the \ref SPI_Init() function documentation for more details\r
+ * - The \ref Dataflash_Init() routine no longer initializes the SPI bus - the SPI bus should be initialized manually via a\r
+ * call to SPI_Init() before using the Dataflash driver\r
+ *\r
+ * <b>Host Mode</b>\r
+ * - The USB_GetDeviceConfigDescriptor() function's parameters and behaviour has changed; the user is required to\r
+ * preallocate the largest allowable buffer, and pass the size of the buffer to the function. This allows for a single\r
+ * call to the function to retrieve, size check and validate the Configuration Descriptor rather than having the user\r
+ * application perform these intermediatary steps.\r
+ * - The HID report parser now requires a mandatory callback in the user code, to filter only the items the application\r
+ * is interested in into the processed HID report item structure to save RAM. See \ref CALLBACK_HIDParser_FilterHIDReportItem().\r
+ * - The HID report parser now always parses FEATURE and always ignores constant-data items - the HID_ENABLE_FEATURE_PROCESSING\r
+ * and HID_INCLUDE_CONSTANT_DATA_ITEMS compile time tokens now have no effect.\r
+ * - The USE_NONSTANDARD_DESCRIPTOR_NAMES compile time token has been removed - there are now seperate USB_Descriptor_*\r
+ * and USB_StdDescriptor_* structures for both the LUFA and standardized element naming conventions so that both may be used in\r
+ * the one project. For existing projects using the standardized names, change all code to use the USB_StdDescriptor_* variants.\r
+ *\r
+ * <b>Device Mode</b>\r
+ * - The USE_NONSTANDARD_DESCRIPTOR_NAMES compile time token has been removed - there are now seperate USB_Descriptor_*\r
+ * and USB_StdDescriptor_* structures for both the LUFA and standardized element naming conventions so that both may be used in\r
+ * the one project. For existing projects using the standardized names, change all code to use the USB_StdDescriptor_* variants.\r