还没正式发布。
用力戳 http://crossvcl.com/
消息来源：Delphi G+ Group.
具体信息还没完全披露，但是可以肯定的是，不是通过FireMonkey，而是通过原生的MacOS API实现。换句话，是把VCL控件的功能重新用MacOS API实现。至于能够支持什么类型，支持多少的VCL控件，尚待观察，但是可以肯定的是和WIN API紧密捆绑的第三方VCL会比较呛。
据信CrossVCL背后团队的另一项目：http://www.turbococoa.com ;（也就是用Delphi编程，界面则用XCode来做，也是不通过FMX实现，据资料还支持Android，具体自己看，我也只是关注，没试过）。所以该团队实力经验应该是很ok的。
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CrossVcl is a Delphi extension which allows build VCL applications for macOS without modification the source code.
One framework for two desktop platforms: Using CrossVcl you focus only on your VCL application and CrossVcl makes it cross-platform.
Win API bridge: CrossVcl provides low-level Windows API bridge to macOS.
Native Controls: CrossVcl provides native macOS equivalents for almost all standard controls like TEdit, TMemo, TComboBox etc.
Native Graphics: TCanvas and TBitmap behave on macOS like on Windows.
Custom Controls: Many custom controls work on macOS like on Windows unchanged.
Demo video: https://www.youtube.com/watch?v=nwaKsnm0MIM
We are currently in private alpha and will be launching our public beta very soon. If you would like early access to the beta, subscript onhttp://www.crossvcl.com
https://forums.embarcadero.com/thread.jspa?threadID=245766