Lion versions how does it work

With Lion, Apple aims to make that process a thing of the past. You can opt to resume exactly where you left off after a restart. And, like Auto Save, Resume requires essentially no action on your part. The idea is that, when you launch an application, it opens exactly where it was when you left off: all of your documents and windows are where they were when you quit.

Sometimes, however, it takes a few seconds before you can actually interact with those windows. Resume works not only when you quit and reopen an app, but also when you restart your Mac. If you ever want an app to not reopen the way it was, you can hold down the Shift key while launching it. When Resume works, it feels truly magical. But, like Auto Save and Versions, it needs support from third-party developers to reach its full potential.

Right now, not all apps take advantage of it. The ability to encrypt your backup disk is clearly part of a larger data security push throughout the OS see File Vault 2. When you set up a new Time Machine disk, all you need to do is check the box marked Encrypt Backup Disk and then enter a password. Laptop users will also be glad for another new Time Machine ability: local snapshots. When you plug your Time Machine drive back into your Mac, those snapshots are moved to your backup drive, consolidating all of your backup data in a single, easily broweable location.

The Time Machine preference pane and interface have received a few minor tweaks of their own. For example, when you click on Options in the preference pane, you now have the choice of locking documents in those apps that support Auto Save one day, one week, two weeks, one month, or one year after their last edits; that saves you from accidentally making changes to documents you mean to preserve.

And the Time Machine interface now highlights the date of your last backup in the timeline on the right-hand side, coloring it and any backups before that in purple so that you can easily find them.

If you open a file from a network share there is no versioning information in the file unless the local computer you are using had been used to make those versions. When you save a file stored on a network volume you are informed that the volume does not support permanent version storage. If you open the file and start editing it on another host and changes occur on both hosts which the system will allow to happen then at the next save you will get an alert that states that the file has been changed by another application.

Clicking Save Anyway will overwrite changes from the other computer and Revert will revert to the last saved document or more likely error out with a complaint about permissions even if those permissions are A few other points of information: Initially I had read that Time Machine was required to make use of this feature. That is incorrect. It works perfectly well with Time Machine disabled. Having said this, the app does report a message about Time Machine but this can safely be disregarded.

That too is incorrect. This is due to the fact that versioning results in copy operations. Root can traverse into other users version files. I have found no way thus far to change the auto-save interval will hopefully update this when I do. Pasting graphics into large files is much slower than previous versions but likely offset by the new ability to flip through versions of files. Not all applications have built-in Versions options yet e. Office but I think most will at some point in the future.

You can still mv a file to a. Document-based Cocoa applications can opt into this autosaving behavior with a simple override. With automatic saving enabled, the system automatically writes document data to disk as necessary so that data displayed in a document window is, in effect, always the same as the document data on disk.

A file coordination mechanism maintains sequential access to files. To browse previous versions of a document, choose Browse All Versions from the pull-down menu at the right end of the menu bar.

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To try out the feature for yourself, open up TextEdit from your dock or through Spotlight. You'll see a blank document. Go to File, then then Save to give the document a file name. Start typing, then press Save again.