This is going to be a very simple and straight forward question. I do not have experience of using any MacBook. I'm a software engineer by profession and I'm considering to purchase a MacBook to get started with iOS development. I got some quotations from a local Apple Authorized Reseller and they are saying that they have 2 MacBooks that fall in my budget. Budget can be increased though. One is Apple MacBook Pro Retina 13.3" (MF839ZA/A). It has "Mac OS X Yosemite" on it. If I purchase this MacBook then can I upgrade the OS X to "Sierra"?
What will be the software upgrade costs from the following OS X versions to Sierra:
- Mavericks to Sierra
- Yosemite to Sierra
- El Capitan to Sierra
What are the minimum hardware requirements or MacBook version requirements for me to install Sierra on it?
I need Sierra for XCode 8.0+.