In-memory OLTP, frequently referred to by its codename “Hekaton,” was introduced in SQL Server 2014. This powerful technology allows you to take advantage of large amounts of memory and many dozens of cores to increase performance for OLTP operations by upto 30 to 40 times! SQL Server 2016 is continuing the investment in In-memory OLTP by removing many of the limitations found in SQL Server 2014, and enhancing internal processing algorithms so that In-memory OLTP can provide even greater improvements. This technical whitepaper provides a high-level overview of these changes in SQL Server 2016, focusing on those that are available in CTP2.