Strip out BuildTest sub-makefile contents as much as possible. Remove old UC3 build test makefile from the ModuleTest build test. Add platform module to the example LUFA makefile.

Add new ATPROGRAM build system module. Add ATPROGRAM and CPPCHECK modules to all application makefiles.

Add symbol-sizes target to the BUILD build system module to print a size-sorted list of symbols from a compiled application, in decimal bytes.

Add emergency aborts to the recursive makefiles to prevent system failures due to infinite recursion if something happens while building the project lists.

Don't show a list of object/dependency files in the human friendly output of the BUILD module clean command. Use a unique message prefix for assembling vs. compiling.

Switch StaticAnalysisTest build test to use the new build system CPPCHECK module. Update additional build tests to all include the core build system module.

Disable inbuilt make rules in the LUFA build system for speedups when compiling many projects recursively.

Add explicit blank checks in the build system for user-set but blank variables that must not be blank.

Add .PHONY targets in all build system modules. Alter BUILD module so that the existence of source files are checked before the build is started.

Add $(MAKEFILE_LIST) as a dependency on build rules that could be altered by changes to the makefiles - if the user alters the project makefile, require that all modules are rebuilt.

Rename program_ee AVRDUDE module target to program-ee. Update CORE build module to print out lists one item per line, rather than all on one line.

Clean up CORE build system module, use simple rather than recursive make variables for internal constants and $(shell) derived values.

Clean up BUILD build system module - seperate architecture utility prefix code and sanity check from the CC_FLAGS construction code. Add target to print GCC version.

Ensure that USB_DEVICE_ONLY or USB_HOST_ONLY is properly set for devices that physically do not support a particular mode. Fix main LUFA library makefile default target.

Remove any variables in the optional build variable list that are marked as mandatory by one or more included build system modules in the CORE build system module. Alter DOXYGEN build system module to by default override the Doxygen configuration file stylesheet and replace it with the LUFA Doxygen stylesheet.

Remove space padding on the current time when automatically generating AVR Studio 4 project creation/modification timestamps.

Ensure build tests use the system provided $(MAKE) variable to determine the command to invoke make, rather than a hard-coded name. Strip off excess whitespace from the list of object files when printing them out to the shell in the build system BUILD module.

Ensure the BULD build system module produces a LSS listing file output when the "all" target is invoked.

Strip trailing slash from the user-supplied LUFA_PATH directory, to prevent double slashes from appearing in the commands/output.

Add EEPROM programming target to the AVRDUDE build system module. Correct message output test for the BUILD build system module. Clean up DOXYGEN build system module logic.