New SCP when i close the FTP ask if i want save the work area. What is this?

When i close Win SCP after the latest update it ask if i want exit without save the work area. What this means?

Thank you. I press help button on the dialogue but there is no guide.

Recent versions of WinSCP can save your workspace (a set of opened sessions – similarly to how modern web browsers can preserve the opened tabs):
https://winscp.net/eng/docs/workspace

ocisp87 wrote:

I press help button on the dialogue but there is no guide.

This issue has been added to the tracker:
https://winscp.net/tracker/1825