 Then version 10.60, which Opera Software claims to be 50% faster than Opera 10.50, which also brought up new features like Geolocation, WebM support, AVG malware protection, Speed Dial improvements, etc.10.63 was the final version to run on Windows 9x/NT4, as later releases would require at least Windows 2000.Opera 11 (codenamed Kjevik) was released on with new features including extensions, tab stacking, visual mouse gestures, new installer (Windows only) and safety improvements to the address field.