A status bar is located at the bottom of the timeline. This bar provides information about your project and also holds some useful icons.
You can use it to select the update or razor tool, zoom the timeline, toggle on/off the thumbnails for video and audio, and decide to show or not markers and snappoints. It also displays the timeline time of your cursor.
(This older image is missing the spacer tool, but there is a rendering glitch on my Kdenlive build which clips the status bar, so I went with this image)