six.integer_types for axis check in F.concat (#7712, thanks @knorth55!)six.integer_types for axis checks (#7770)chainermn.links.create_mnbn_model (#7618)CupyMemoryProfiler (#7639)None array in FunctionNode NaN check (#7642)AMSGrad with intel64 backend (#7689)PickleDataset crash when using multiprocessing (#7729, thanks @zaltoprofen!)MultiprocessIterator (#7742)chainer.grad for multiple devices (#7746)backend.get_array_module not cuda.get_array_module (#7619, thanks @crcrpar!)Optimizer and GradientMethod (#7644)chainer.get_device to doc (#6831)shape in generate_array (#7576)expand_dims.py (#7608)Links (#7628)BackwardContext comment (#7636, thanks @crcrpar!)FunctionNode docs. (#7659)F.squeeze documentation (#7688)examples/vae/train_vae.py (#7580, thanks @m4saka!)