Gazelle (web browser) a predecessor project, "MashupOS", but with "Gazelle" the emphasis was on a more secure browser. By the July 2009 announcement of Google Chrome OS, Gazelle was seen as a possible alternative Microsoft architectural approach compared to Google's direction. That is, rather than the OS being reduced in role to that of a browser, the browser would be strengthened using OS principles. The "Gazelle" project became dormant, and "ServiceOS" arose as a replacement project also related to browser architectures. But by 2015, the SecureOS project was also dormant, after Microsoft decided that its new flagship browser would be Edge. Gazelle (web
Opera (web browser) Google (which is by contract Opera's default search engine). Among the new features introduced in version 9.1 (released in 2006) was fraud protection using technology from GeoTrust, a digital certificate provider, and PhishTank, an organization that tracks known phishing web sites. This feature was further improved and expanded in version 9.5, when GeoTrust was replaced with Netcraft, and malware protection from Haute Secure was added. Also in 2006, Opera Software ASA released Internet Channel and Nintendo DS Browser for Nintendo's DS and Wii gaming systems. A new JavaScript engine called Carakan, after the Javanese alphabet, was introduced with version 10.50.