Questions about downloading Yosemite

[bigchief]

I have a MBP late 2013 with Mavericks.

About how long will it take me to download Yosemite from the App store. My wifi connection is 14-15 megabits PS.

Will Yosemite change any of my preference settings?

 

[Weaselboy]

It is about 5GB, so around 40 minutes or so for you. It keeps your preferences.

 

[bigchief]

It is about 5GB, so around 40 minutes or so for you. It keeps your preferences.

Thanks Weaselboy