Texture Asset ID Transfer Update Question

I recently saw this item in the changelog:

* Texture asset IDs no longer sent to the viewer unless necessary

Under what specific circumstances does this now happen? I have a project that I am working on which uses a "trick" to force pre-caching of particle textures, and would like to know if I now have to change how I do it.

I'm not sure Talarus. I'll see what I can find out.