The xcode 4 preview just came out today. Has anyone tried it yet? It is safe to use for production release? Would love to use the new compiler.
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The xcode 4 preview just came out today. Has anyone tried it yet? It is safe to use for production release? Would love to use the new compiler.
No, it’s not safe for production builds. In general, you should not use prerelease versions of Xcode for applications built for distribution, and in this case it is specifically warned against.
That said, if all you want it for is the LLVM compiler, you can now use that with the normal 4.0 SDK. LLVM 2.0 that ships with Xcode 4 has some improvements, but you can take advantage of most of the performance boosts by switching to LLVM on Xcode 3.2.x.
Also, Xcode 4 is fully project-compatible with Xcode 3, so you can go back and forth between the two. You can do development and debugging on Xcode 4 to take advantage of the new IDE features, and then switch back to Xcode 3 for final testing and building for App Store submission.