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There are couples of new Lion features that have to do with saving your files. One is called Versions and the other is called Restore Windows. For applications that support it, Lion saves your documents when you open it. Then once an hour, Lions saves the version of the file. You can also create a version by choosing Save a Version from the File menu. So let's take a look at that in TextEdit. So here's a new TextEdit window. Command+S to save it. I'll call that Test 1. Return to save.
Now I'll edit the document some more. Now let's look in the File menu. There is now a new command called Save a Version. Not Save, but Save a Version. Select that or I could press Command+S. Now I've saved a version of the file. How is that reflected? Let's go up to the top of a window and you see the small triangle. I click on that and I have the option to Browse All Versions.
I'll select that and up comes this cool space-age-like interface that looks a bit like time machine which is something we're going to look at later in the course and that's Apple's backup utility. So on the left side, we see the current version of the document. We also see the current version of the document on the right. However, if I click the previous version behind it, I see the first saved version. Another way to get there is go to the right side of the window. The last entry is the most recently saved version. The one previous to that is the prior saved version.
So suppose I want to go back to the original version. All I have to do is click Restore and that's the version that returns. Now suppose I want to see the updated version. I'll go back, Browse All Versions, here comes the interface, and here's the most recently saved version I can restore to that and there we are. This is a great feature when you've accidentally edited a file or you want to return to a previous version to see what you've done.
Now a quick TextEdit, Command+Q. Now let's take a look at the Restore Windows feature. I'll open a few applications. ere's Safari. What the heck. We'll open the TextEdit again, and there is my file. I'll choose from the Apple menu, Restart. When I do this, you see an option that says Reopen windows when logging back in. I'm not going to do that right now. I'll hit Cancel because I don't want this to restart. But what this means is when I restart my Mac, both of these applications will open again and they will show me the documents that are open when I restarted my Mac.
Now let's look at Shut Down. Same idea. Reopen windows when logging back in. So this is a good feature if you want to maintain your work environment, you need to restart your Mac. That way you don't have to restart all those applications again and find out where you were when you last restarted or shut down. This Restore feature can also work when quitting and launching applications. So go to the Apple menu > System Preferences > General, and at the bottom here you see this option that reads Restore windows when quitting and re-opening apps.
Let's see how that works. Quit System Preferences. Let's save this. I'll create a new file without saving it and then I'm going to quit TextEdit. Now let's launch TextEdit again and here are both files. You notice the untitled window is still here. This is the document that I just created, but I didn't save it, because it was held in a saved state in the background.
Again, a great feature if you happen to work on a document, you quit the application, you launch it again, and back comes the work that you're working on even though you may not have saved that document. Something to note about this. This feature works only with those applications that are written to take advantage of it. So it works perfectly well with TextEdit. As you saw with Safari, it brought us back to the state we were in before, but some third-party apps may not currently work with it. Hopefully, they'll be updated so they will. Quit TextEdit, quit Safari, and now we're back to the Finder. And that's the lowdown on Versions and Restore Windows.
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