Apple has released MacBook Air Flash Storage Firmware Update 1.0 for MacBook Air models released in the middle of 2012. The release addresses a rare problem that could cause a system to fail to recover from a crash. As always with firmware updates, we recommend relying on Software Update or the App Store app to ensure you get the firmware update for your specific model, and being careful not to interrupt the update process. Apple also notes that your MacBook Air will shut down after the update is complete, and that you should wait one whole minute before restarting it. (Free, 1.69 MB)
Find Text Leading from Acrobat PDF
Ever have to recreate a document from an Acrobat PDF? You can find out most everything about the text by using the Object Inspector, except the leading. Well, here's a cheesy way to figure it out. Open the PDF in Illustrator (you just need one page). Release any and all clipping masks. Draw a guide at the baseline of the first line of text, and one on the line below. Now, Option-drag the first line to make a copy, and position it exactly next to the original first line at baseline. Then put a return anywhere in the copied line. Now adjust leading of the copied lines, so that the second line of copy rests on the baseline of the second line of the original. Now you know your leading.
Or you could buy expensive software to find the leading. Your choice.
MacBook Air Flash Storage Firmware Update 1.0
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As an aside, I tried to find the history of updates as I would have in the "old days" (e.g., Lion and earlier) when another tab in software update would reveal each one going back a long way, perhaps to the last (maybe only) "clean install."