VS 2014 repaired to VS 2015

System-configuration.md

@@ -146,16 +146,16 @@ _**TODO**_
 ## Windows Worker
 From beginning we are determined to support Windows operating system on which some of the workers may run (especially for projects in C# programming language). Support for Windows is quite hard and time consuming and there were several problems during this. To ensure capability of compilation on Windows we set up CI for Windows named [Appveyor](http://www.appveyor.com/). However installation should be easy due to Visual Studio NuGet package manager.
 
-There are only two dependencies needed. **Windows 7 and higher** and **Visual Studio 2014**. Visual Studio itself contains all features needed for compilation. All dependencies as libraries and such are either installed through NuGet package manager or are managed as submodules in git repository.
+There are only two dependencies needed. **Windows 7 and higher** and **Visual Studio 2015**. Visual Studio itself contains all features needed for compilation. All dependencies as libraries and such are either installed through NuGet package manager or are managed as submodules in git repository.
 
 **Installation Pipeline:**
 * Download git repository of **worker**
 * Initialize and download all git submodules
-* Run cmake in default directory of repository with at least VS 2014
+* Run cmake in default directory of repository with at least VS 2015
 ```
 cmake -G "Visual Studio 14 2015"
 ```
-* When cmake does its job open generated solution file in VS 2014+
+* When cmake does its job open generated solution file in VS 2015+
 * For entire solution add these NuGet packages:
   * boost
   * boost_system-vc140