EMDK v4.0 has been released before the official announcement of our TC8000, this is why it's not included in the release notes.
As far as I know we've done Test and Validation on it, I'll try to get back to you with an official statement.
EMDk 4.0 is not yet supported on TC8000. It will be supported in a next software update.
For now, you can use EMDK 3.1 update 1 given here: https://goo.gl/lp1vMC
Release note says:
Added support for TC8000 KitKat (Android 4.4.3) devices. (Added January 2016)*
* New device approval has been received for this package. The approval did not require any software changes. If you have
already installed the package, there is no need to download and install it again