iTerm for Mac

• You can now "fold" a section, which collapses it down to a single line. If you use shell integration, you can fold by clicking on the blue arrow next to the shell prompt. Alternately, select the command by clicking it once and then click the new fold button at the top of the selected region. If you don't use shell integration, you can select a range of lines and choose Fold from the context menu or Edit > Fold Selected Lines. To unfold, click the arrow in the margin or right click on the line and select Unfold or select Edit > Unfold in Selection.
• When saving a window arrangement you can now choose to save it to a file including the windows' contents. You can load an arrangement file with Window > Load Arrangement from File.
• Added `Window > Lock Split Pane Width` which tries to preserve the width of a split pane as the window's geometry changes.
• You can now choose to play a sound when the next mark is received, under Edit > Marks and Annotations > Alerts.

Full list of changes available here