New Feature

New Operators and Functions

isfinite_v2、acos、asin、atan、ceil、cos、cosh、arg_min、elu 、hard_shrink related pull request #357
logical_not、logical_or、erf、isinf_v2、isnan、floor_mod、isnan_v2、less_than 、log2、logsumexp related pull request #358
selu、logical_xor、log10、log1p、reduce_all、reduce_any、round、sin、rsqrt 、sign、logsigmoid related pull request #362
sinh、brelu、mv、dot、dist、softsign、log_softmax、argsort、index_select 、size、pad1d、hardtanh related pull request #363
conv3d 、pool3d related pull request #405
Add onnx and onnxruntime version requirement prompts. #335
Add the op development guide for Paddle2ONNX. #368
Add nms plugin for openvino. #386

pool2d operator, related pull request #330
resize operator, related pull request #348
pad3 operator, related pull request #349
concat operator, related pull request #377
argmax operator, Fix bugs in argmax op when dtype is int32, related pull request #393
padding operator, related pull request #400
unsqueeze2 operator, related pull request #405
When exporting onnx, an error occurred when including a register_buffer. related pull request #356

Thanks to @AndPuQing for contributing 43 OPs in this release.
Thanks to @SamDM for solving the problem of exporting models with register_buffer to ONNX in this release.
Thanks to @franva for suggesting and fixing some small bugs for us in this release.