This firmware has been updated twice since v1.02 (v1.03, v1.04) and does not have video support.
Walls's survey article on community organizing has been updated twice and remains a popular on-line resource.
It is updated once or twice a decade.
Originally written in the 1940's, the handbook has only been updated twice, most recently in 1982.
Timetables are updated twice a year, sometimes more often, with a winter and summer timetable.
In general, it is updated once or twice a year when the system's functions require rectification and further development.
It was then twice updated in India (c.1605 and 1628) to show later generations of the royal house.
The menu is updated twice per year based on customer surveys and sales metrics.
The game would be updated twice for the arcade.
The database is usually updated twice in the period of the release of the game.