When you have many issues on your board, sometimes you would want to narrow them down and focus on issues that fit specific criteria, such as bugs or new stories. By using quick filters, we can remove the unnecessary "noise" by filtering out all the issues that do not fit the criteria, letting you focus on the issues to care about. Have a look at the following screenshot:

You can think of quick filters as additional views for your Scrum board. For example, the preceding screenshot shows three quick filters for your Scrum board, Bug Only, Only My Issues, and Recently Updated. By using the Bug Only quick filter, you can get a view of your board showing only bug issues. You can toggle a quick filter on and off by clicking on it. When turned on, it will be highlighted in blue, and update the board with only issues that fit the filter's criteria. Clicking on the filter again will un-apply it. You can have more than one quick filter applied to a board at the same time, and only...