 In August 2010, the sixteenth edition was published simultaneously in the hardcover and online editions for the first time in the "Manual"s history.In a departure from the earlier red-orange cover, the sixteenth edition features a robin's-egg blue dust jacket (a nod to older editions with blue jackets, such as the eleventh and twelfth).The sixteenth edition featured "music, foreign languages, and computer topics (such as Unicode characters and URLs)".