# Changelog

All notable changes to 3.13.0 C# API will be documented in this file.

The 'name' of the api is 3.13.0 and will never change.

## [3.13.0-700] - May 17 2017
[ADDED] Performance improvement - call to GetSystemTimePreciseAsFileTime includes the SuppressUnmanagedCodeSecurity attribute
[ADDED] Performance improvement - MDEntry enum deserialization
[ADDED] Performance improvement - MFFloat is now a stuct - see the README.md file for notes

## [3.13.0-600] - March 14 2017
[ADDED] Passthru of C# API-provided OrderOriginationTrader and AlgoOrderFlag for CME FHs

## [3.13.0-500] - Sept 20 2017
[ADDED] Higher resolution timestamps for win8/windows server 2012 +

## [3.13.0-400] - June 5 2017
[ADDED] Improved performance of serialization