Yes! The Microsoft PowerShell Team has release the PowerShell Core 6 RC to the public this evening 11/17/2017 available for download. And, now the road to the GA (General Availability) started.
Read all about it on Microsoft PowerShell Team Blog post a the following link: https://blogs.msdn.microsoft.com/powershell/2017/11/17/powershell-core-6-release-candidate/
Notice, when you start PowerShell (pwsh), is giving you a hint to check out PSCpore6-Docs: https://aka.ms/pscore6-docs
Let’s keep the momentum going!