Does the Xcode 12 GM seed not include macOS 11 SDK?

Installed the Xcode 12 GM on a couple systems, updating from Beta 6, only to discover that it doesn't include macOS 11 SDK. No indication of this particular change in the release notes. Am I missing something obvious? I would imagine that to be the default SDK, if anything... but instead it defaults to the 10.15 SDK? 🤔

Thanks!
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FxFactory
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From the page for beta/applications the 12 GM blurb says this about that:

"For development on macOS Big Sur or to support Apple silicon, continue to use Xcode 12 beta 6."
Posted by
KMT
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This works on the Xcode beta on Catalina (NSTableView API addition)

Code Block 
	if (@available(macOS 11.0, *)) {
		self.style = NSTableViewStyleFullWidth;
	}

But doesn't work on the Xcode GM with Catalina.

It's not specific to Apple Silicon. Oddly, it does compile with the GM Xcode on Big Sur.
Posted by
Nik Bhatt
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For development on macOS Big Sur or to support Apple silicon, continue to use Xcode 12 beta 6.
Posted by
dragon_zheng
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