Conqueror Browser is an open source web browser using the Trident and Chakra Engine rendering engines by Microsoft. Version 1.2, released in February 2011, is a major update to the browser. In future versions starting from version 2, its developers have hinted that they will integrate the Webkit rendering engine. Conqueror Browser is available as a free download, and supports Microsoft Windows XP SP3 or later and Linux through Mono.