is pytorch-pretrained-bert still being maintained in the future?
## 📚 Migration

<!-- Important information -->

Model I am using (Bert, XLNet....):

Language I am using the model on (English, Chinese....):

The problem arise when using:
* [ ] the official example scripts: (give details)
* [ ] my own modified scripts: (give details)

The tasks I am working on is:
* [ ] an official GLUE/SQUaD task: (give the name)
* [ ] my own task or dataset: (give details)

Details of the issue:

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## Environment

* OS:
* Python version:
* PyTorch version:
* PyTorch Transformers version (or branch):
* Using GPU ?
* Distributed or parallel setup ?
* Any other relevant information:

## Checklist

- [ ] I have read the migration guide in the readme.
- [ ] I checked if a related official extension example runs on my machine.

## Additional context

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Hi, `pytorch-pretrained-BERT` is the name of this library as it was a year ago. It has since evolved into `pytorch-transformers` and now `transformers`. It is the same library.<|||||>Hi thank you for your reply. But my question really is that I'm now using apis from pytorch-pretrained-BERT directly and will this library be maintained under new release (new python release, bug fixed, etc)? 

The reason is that I found some discrepancies between apis from pytorch-pertrained-BERT library and transformers library and the old one (from pytorch-pretrained-BERT) gave better results so I'm sticking with that library.<|||||>No updates will be done to the `pytorch-pretrained-BERT`, no bug fixes either. It is deprecated. It will remain on pip however.

Would you mind sharing where the `pytorch-pretrained-BERT` package gave better results so that we may investigate this? Thank you.<|||||>yes i'm encountering performance drop with sequence classification tasks, same as issues described in this thread: https://github.com/huggingface/transformers/issues/938.<|||||>@LysandreJik There seem to be quite a few posts that highlight this difference in performance. It is quite alarming but I'm not sure if it is worth investigating because it might be impossible or improbable to solve.

https://github.com/huggingface/transformers/issues/938
https://github.com/huggingface/transformers/issues/931
https://github.com/UKPLab/sentence-transformers/issues/50
https://github.com/huggingface/transformers/issues/2441<|||||>This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
<|||||>This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
