LDC 1.7.0-beta1

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On Sunday, 10 December 2017 at 17:33:34 UTC, kinke wrote:
> Hi everyone,
>
> on behalf of the LDC team, I'm glad to announce the first beta 
> for LDC 1.7. The highlights of this version in a nutshell:
>
> * Based on D 2.077.1.
> * Catching C++ exceptions supported on Linux and Windows.
>
> Full release log and downloads: 
> https://github.com/ldc-developers/ldc/releases/tag/v1.7.0-beta1
>
> Thanks to all contributors!

Very impressive. I'm curious, is the work done to catch C++ 
exceptions separate from Walter's previous efforts with dmd, or 
does it build on his work in some way?