Despite opportunistic jokesters invading the Internet with April Fools day humor, SQL Server 2014 actually released on April 1, 2014. SQL Server 2014 brings a stack of new features to the already powerful and popular database product. Things like In-Memory OLTP, AlwaysOn, Buffer Pools, data tools for BI, and automated backup to Windows Azure are cornerstones of improvements.
If you have no idea about any or all of the terms I just mentioned, you might want to grab a new eBook that Microsoft Press is offering called Introducing Microsoft SQL Server 2014.
At a little over 125 pages and six chapters, the book is a good resource for getting a handle on the latest enhancements provided in SQL Server 2014. Though publicly released on April 1, Microsoft has scheduled April 15 as the official announcement party, delivered live over the web so everyone can join in. Quentin Clark will be joined by CEO Satya Nadella and COO Kevin Turner to cover SQL Server 2014. But, you can prepare for the event with this eBook.
Download: Introducing Microsoft SQL Server 2014