What's New in Release 1.6
Add flip-view and close buttons to pane-headers by petetnt : In split view, documents now can be closed via the new close button added at the right corners of both the panes. Also, document now can be easily moved into the other pane, using the new flip button.
Toggle panels and no-Distraction mode by abose : Brackets now has a no-distraction mode which can be enabled using Cmd-Shift-2 shortcut. Once enabled, this mode will hide the toolbar bar panel on the right as well as the project tree.