Version 2163 was commited by wanmil on 2012-01-06 20:11:27 +0000 (Fri, 06 Jan 2012) Remove elements that would not pass the style processing The new UnusedElementsRemoverHook removes all elements (nodes, ways and polygons) that lie outside the tile bounding box. These elements might have been required for the multipolygon processing. But after that they can be safely removed to save processing time and memory.