Changes in bitbake Trunk: -kill default arguments in methods in the bb.data module -kill default arguments in methods in the bb.fetch module -the http/https/ftp fetcher will fail if the to be downloaded file was not found in DL_DIR (this is needed to avoid unpacking the sourceforge mirror page) -Switch to a cow like data instance for persistent and non persisting mode (called data_smart.py) -Changed the callback of bb.make.collect_bbfiles to carry additional parameters -Drastically reduced the amount of needed RAM by not holding each data instance in memory when using a cache/persistent storage Changes in bitbake 1.2.1: The 1.2.1 release is meant as a intermediate release to lay the ground for more radical changes. The most notable changes are: -Do not hardcode {}, use bb.data.init() instead if you want to get a instance of a data class -bb.data.init() is a factory and the old bb.data methods are delegates -Do not use deepcopy use bb.data.createCopy() instead. -Removed default arguments in bb.fetch