Red Hat e phatlalalitse tokollo e tsitsitseng ea sephutheloana sa Cygwin 3.3.0, se kenyelletsang laeborari ea DLL bakeng sa ho etsisa Linux API ea mantlha ho Windows, e u lumellang ho bokella mananeo a etselitsoeng Linux ka liphetoho tse nyane. Sephutheloana sena se boetse se kenyelletsa lits'ebeletso tse tloaelehileng tsa Unix, lits'ebetso tsa seva, li-compilers, lilaebrari le lifaele tsa lihlooho tse bokelletsoeng ka kotloloho ho sebelisoa ho Windows.