There is no information on the new reactor in the draconic tablet.

This is on my todo list but its pretty much the same as in 1.7.10 so feel free to go look at any of the gazillion 1.7.10 reactor tutorials.

Summery of 1.10 reactor changes:

As far as people using redstone control are concerned everything is essentially the same. With the exception of the reactor states.
The states are now as follows.

Invalid Setup
Offline
Warming Up
Online
Stopping
Cooling Down
Explosion Imminent

These are pretty self explanatory. The "Explosion Imminent" state is a new state that the reactor goes into before exploding.
Once this state is triggered there is no way to stop the impending explosion.

There is also a new failsafe mode which will automatically initiate shut down the reactor when the saturation reaches 99% and the temperature drops bellow 2500C

OC users:
The logic is also the same here.
There is now a new setFailSafe(boolean) method that simply sets the failsafe state.

There are also some minor changes in the output of the getReactorInfo method. Specifically the status field.
status will now contain one of the following. invalid, cold, warming_up, running, stopping, cooling or beyond_hope.
There is also a "failSafe" field which simply contains the failsafe status.