The phrase "roster update" refers to making changes and updates to a list or schedule of people or things, such as a team lineup or a group of employees. Full definition
The core gameplay remains generally the same, but there are enough new elements that prevent the game from being a simple roster update from last year's entry. (bitcultures.com)
Keep your eye out for any odds changes or roster updates during the next two months. (sportsinsights.com)
Support for the game was unacceptable, as it took nearly three months to get even a single accurate roster update out. (sportingnews.com)