Studio 2015 beta 1 was recently released and you can find more information about this release by going here. As an OpenExchange developer the next question which probably pops is if my Studio 2014 plugin will work on the new Studio version. The short answer is no and this is because Studio 2015 is build on a newer .NET version and there is a new plugin location from where Studio 2015 loads your plugins. There 3 main things that must be done in order to have your plugin ready for Studio 2015: Besides the new .NET Framework you also need to reference the new Studio API assemblies which have the same name as before is just that they are located in the Studio 2015 install folder.

1. Recompile plugin against Studio 2015 assemblies

As I mentioned in my introduction Studio 2015 is build against a newer version of Microsoft .NET, to be more precise is .Net Framework 4.5.2. This means that Studio 2014 plugins will not work since they are build against .Net Framework 4 and this is because you can have backward compatibility but there is no way to have future compatibility. So here are the exact steps you to recompile your plugin:

1. For .Net 4.5.2 you need one of the following operating systems:
   1. Client operating systems: 
      

      Operating system	Supported editions	Additional information
      Windows 8.1	32-bit and 64-bit	Includes the .NET Framework 4.5.1
      Windows 8	32-bit and 64-bit	Includes the .NET Framework 4.5
      Windows 7 SP1	32-bit and 64-bit	-
      Windows Vista SP2	32-bit and 64-bit	-

   2. Server operating systems

      Operating system	Supported editions	Additional information
      Windows Server 2012 R2	64-bit	Includes the .NET Framework 4.5.1
      Windows Server 2012 (64-bit edition)	64-bit	Includes the .NET Framework 4.5
      Windows Server 2008 R2 SP1	64-bit	The .NET Framework is supported in the Server Core Role with SP1 or later, but isn't supported on Windows Server 2008 R2 for Itanium-Based Systems.
      Windows Server 2008 SP2	32-bit and 64-bit	The .NET Framework is not supported in the Server Core Role.

1. .Net 4.5.2 is not working with Visual Studio 2010 so you need to upgrade to Visual Studio 2012 or Visual Studio 2013. My recommendation is to go with Visual Studio 2013 because of many reasons but the most important is the fact that Visual Studio 2013 has a community version which is completely free and has the exact same features as the professional version. More on community version here.
2. Make sure you install all available updates for your Visual Studio version. You can see available updates if you go in Visual Studio -> Tools -> Extensions and Updates
3. Install .Net 4.5.2 

2. Studio 2015 plugin install location

Coming soon.

3. Submit new plugin version on OpenExchange

Coming soon.