do I need back up my third Apps?

hi all, i have 13" retina display.
and I really want to upgrade OS MAVERIKS, but I'm afraid that upgrading OS will delete my third apps such as: Adobe CS 6, Final Cut Pro, Microsoft Office etc.
and will upgrading erase my photos and download file?

regards
drenigma

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  • Answer

    It's always recommended to backup your Mac always. Upgrading your OS will not delete any data, including apps, files and settings.

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