Apple has released iMac SMC Firmware Update 1.1, which is recommended for recently released iMac models that have been configured with PCIe-based flash storage (see “Apple Updates iMac with Faster CPUs and 802.11ac Wi-Fi,” 24 September 2013). The release improves the Power Nap feature in OS X 10.9 Mavericks so that it runs silently while your iMac is sleeping without spinning the fan. (Free update, 921 KB)
Adjust Multiple Column Sizes Simultaneously
Within the Finder, Column View enables you to see folder hierarchies, with each subsequent level getting its own column. Dragging on the double lines at the base of a column divider changes the preceding column's width. But Option-drag on any divider, and all the columns in the window change to the same width.
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