Will the ios 7 update delete all my text messages

I want to update my iPhone5 but, I can't/don't want to lose my text messages or my notes. When I updated an iPad, it deleted all the notes! So will that happen to my phone?

No it won't.

Just remember to backup.

I recently upgraded from iOS6 to iOS7 and I had no problems with it. All my previous message conversations were still there and none were missing. All recent calls made to and from my phone were still logged.

Basically apart from the changes to the iOS and the interface, nothing had changed with my apps and the data contained therein.

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