Xcode 11 Catalina
Steps: Catalina + XCode 11 installrocksdbsource git clone cd rocksdb/ git checkout tags/v6.14.5 make clean make static. With the Catalina upgrade, my Xcode did not automatically update to 11.1. The App Store kept trying to update Xcode each night through automatic updates. On its own, it never succeeded. Once it reported it could not download Xcode: Unable to Download App. 'Xcode' could not be installed. Please try again later. Xcode includes everything developers need to create great applications for Mac, iPhone, iPad, and Apple Watch. Xcode provides developers a unified workflow for user interface design, coding, testing, and debugging. The Xcode IDE combined with the Cocoa frameworks and Swift programming language make developing apps easier and more fun than ever.
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In case you like living on the edge, Dash 4 seems to work great with the macOS Catalina beta.
The Apple API Reference docset was updated to work with the latest docs from the Xcode 11 beta.
Xcode 11 Without Catalina
To use the Xcode 11 beta docs, make sure xcode-select -p (in Terminal) points to the location where you have Xcode 11 installed.
Use xcode-select -s <path-to-xcode> (in Terminal) to change the active version of Xcode and then check for updates in Dash’s Preferences > Downloads to make sure Dash picks up the change.
Download Xcode 11 Catalina
The Swift docset in Dash is based on swiftdoc.org, which has not been updated to Swift 5 yet. As soon as it’s updated, the docset will also be updated. In the meantime, you can get the Swift 5 docs by using the Apple API Reference docset (mentioned above) with Xcode 11.
Xcode 12 Catalina
Please let me know if you encounter any issues or if you have any special requests.