Here I propose all developer will publish their explanation of changes made.   Only developers allowed to post here.   Also there will be no questions and discussion. There is another thread "Clover general discussions" here.   Previous change explanations up to revision 3088 is attached.     Next revisions up to current 3174 contains: 1. Bugs eliminations. 2. Speed improvements. 3. Support for new hardware: DDR4, Haswell 5th, AMD Radeon, Nvidia, Intel Graphics. 4. Approved kernel and kext patches. Nothing new for users.