Hi everyone,
Now that Trident 1.2 has been released, there is no need to keep two separate development branches for yt-3.x (master) and yt-4.0 (sph-viz). As of today, the sph-viz branch has been merged with master and the sph-viz branch name deleted. From now on, working from the development version of Trident will always require having the yt-4.0 development branch installed.
To be clear, the latest Trident release (version 1.2) still only requires the latest stable release of yt (version 3.5.1).
Britton