I'm happy to let you know that the second preview release of Azure AD Connect is now available. If you just want to get started, you can get it here.
Those of you who follow the blog know that Azure AD Connect is a tool that simplifies synchronization of your on-premises directories with Azure AD to enable single sign-on to Office 365 and thousands of SaaS and on-premises applications. Since we released the first preview in December we seen a ton of interest and received lots of useful feedback. Today's release has several new capabilities and a bunch of quality improvements and bug fixes based on that feedback.
There are some really nice updates in the latest preview release of the Azure AD Connect tool. Drumroll please!
Support for upgrade from DirSync or AAD Sync
Support for existing SSO deployments
Sync filtering based on an AD group
Support for additional [Preview] sync options like device sync and user writeback.
A list of additional tasks that can be performed post-AD Connect configuration such as adding additional AD domains for federation