Resnet18 onnx model exported from pytorch differs in 0.4.0 and 0.4.1

I find that the resnet18 onnx model exported from pytorch differs in 0.4.0 and 0.4.1.

I use https://github.com/lutzroeder/netron to visualize the resnet18.onnx model,

0.4.0:

0.4.1:

The last few layers after average_pooling are different.

I am not sure what’s the problem. Thanks.