Do I need to run out and purchase a new MacBook Pro to upgrade to Xcode 11? So I will need Xcode 11 by April of 2020, will High Sierra 10.13.6 support it?

If I download Mojave, will it support Xcode 11?

If I download Mojave, with only 11GB left on my hard drive, will that be a problem?
Xcode 11 requires a Mac running macOS Mojave 10.14.4 or later.


https://developer.apple.com/documentation/xcode_release_notes/xcode_11_release_notes

The download from the Mac App Store is 7.6 GB.


  with only 11 GB left on my hard drive


I would suggest having more free space before trying to download and unpack the app.


App Store: Not enough disk space to install Xcode 
Can&#39;t update Xcode even with 19gb free space 
Xcode free space requirement