Earlier today I wrote about some Exchange 2016 content that appeared on TechNet and now it’s obvious why: Microsoft released the Preview version of Exchange 2016. For those of you who attended Ignite this year the announcement will bring not much new. The architecture has been simplified (CAS and Mailbox roles integrated), OWA supports in-line editing and viewing of Office attachments, search has improved (again) and the Hybrid Configuration Wizard now runs from Office 365.
A feature that was not shared earlier is the auto-expanding archive mailbox, after the first 100 GB Exchange will automatically add archive mailboxes in 50 GB increments. I guess this will be interesting for some on-premises users but this is obviously a feature targeted at Exchange Online.
A download link and more information can be found in the article at the Exchange Team Blog.