I created a new route analysis layer by using the Make Route Analysis Layer tool today and the feature dataset and feature class names are different than I expected.
They used to be simple names such as:
Route 1 (as feature dataset name) Barriers, Polygons Barriers, ect.
They now look like this:
I tried looking up in the patch notes to see if this was addressed in 2.6, I couldn't find anything.
Does anyone know if this is intentional? I would ideally like to change the feature dataset name, however that doesn't seem possible (regardless of the sudden naming convention change).
This is correct and intentional. Older versions of Pro used sequential integers, but for a variety of reasons to avoid conflicts, we updated it to use a random string. You should not rely on the feature dataset and feature class names for anything in your analysis or code you're writing. That was never the intended use. If you're having trouble with your code, please add more details to your question, and I can help you out.