How can I bookmark a link to the latest sprint or task board?

If you are asking this question, it sounds like you have bookmarked a deep link to a specific sprint. Instead, bookmark the following link:

https://www.scrumwise.com/scrum/

This link will always take you to what you were looking at the last time you had Scrumwise open. And in the "Task board" tab, it will automatically switch to the most recently started sprint, so that you always see your current sprint.