Yup, work is continuing apace with Julia’s next-gen Zygote project.

Also, from the GP’s thought about applications beyond DL, my favorite examples so far are for model-based RL [1] and Neural ODEs [2]

[1] https://fluxml.ai/2019/03/05/dp-vs-rl.html

[2] https://julialang.org/blog/2019/01/fluxdiffeq