Where is FEZHydraMainboardUpdater.exe?

I am using the FezHydra and I believe I need to upgrade the firmware from 4.1
to 4.2. I have downloaded all that I think I need but I cannot find the FEZHydraMainboardUpdater.exe program.

The directory C:\Program Files (x86)\GHI Electronics\GHI OSHW NETMF v4.2 SDK\Firmware Update contains a file directing me to the GHI website

“Updaters have moved, they can be found on the website.”

The only reference I can find on the website

https://www.ghielectronics.com/docs/125/firmware-update-fez-hydra

instructs me to use FEZHydraMainboardUpdater.exe

So I am confused? What is the proper procedure now to update the firmware?

thanks

This has all started because I am getting:

Error 1 Cannot deploy the base assembly ‘mscorlib’, or any of his satellite assemblies, to device - USB:Gadgeteer twice. Assembly ‘mscorlib’ on the device has version 4.1.2821.0, while the program is trying to deploy version 4.2.0.0

When I try to run a simple application. I have read some posts that indicate the
Hydra only supports 4.1 of the MF but when I try to switch the project to 4.1 I get
compile errors:

Error 1 The type or namespace name ‘GHIElectronics’ could not be found (are you missing a using directive or an assembly reference?) C:\ElaraProject_2010\GadgeteerApp6\Program.generated.cs 20 37 GadgeteerApp6

any help would be appreciated!
thanks

This is what you might be looking for: http://www.ghielectronics.com/community/forum/topic?id=11849

It is in the first post.