I just updated to 0.4.0 recently (specifically, 0.4.0a0+816d5d8). And I found out that the volatile flag in Variable class was no longer effective. And I also found relative pull request in Github but couldn’t understand what the developer trying to do(is there still a similar mechanism to do the volatile thing) and it also seems that the related docs are not updated yet.
Anyone can give a brief explanation of this? Thanks