GPT Neox Japanese is in the release notes for v4.22.X but does not appear to be in the v4.22.X package.
### System Info

I've checked in Colab that GPT Neox Japanese is not in v4.22.1
```
- `transformers` version: 4.22.1
- Platform: Linux-5.10.133+-x86_64-with-Ubuntu-18.04-bionic
- Python version: 3.7.14
- Huggingface_hub version: 0.9.1
- PyTorch version (GPU?): 1.12.1+cu113 (False)
- Tensorflow version (GPU?): 2.8.2 (False)
- Flax version (CPU?/GPU?/TPU?): not installed (NA)
- Jax version: not installed
- JaxLib version: not installed
- Using GPU in script?: <fill in>
- Using distributed or parallel set-up in script?: <fill in>
```

### Who can help?

@LysandreJik

### Information

- [X] The official example scripts
- [ ] My own modified scripts

### Tasks

- [X] An officially supported task in the `examples` folder (such as GLUE/SQuAD, ...)
- [ ] My own task or dataset (give details below)

### Reproduction

1. Open colab
2. `!pip install transformers` to install the latest version (currently v4.22.1)
3. `from transformers import GPTNeoXJapaneseForCausalLM, GPTNeoXJapaneseTokenizer`
then raise below import error.
```---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
[<ipython-input-7-401722e84f23>](https://localhost:8080/#) in <module>
----> 1 from transformers import GPTNeoXJapaneseForCausalLM, GPTNeoXJapaneseTokenizer

ImportError: cannot import name 'GPTNeoXJapaneseForCausalLM' from 'transformers' (/usr/local/lib/python3.7/dist-packages/transformers/__init__.py)

---------------------------------------------------------------------------
NOTE: If your import is failing due to a missing package, you can
manually install dependencies using either !pip or !apt.

To view examples of installing some common dependencies, click the
"Open Examples" button below.
---------------------------------------------------------------------------
```

In [this release note](https://github.com/huggingface/transformers/releases/tag/v4.22.0), I thought we can use `GPT NeoX Japanese` from v4.22.0 release. That's not surprising, the model was not included in the zip file of the v4.22.0 release...
I would be glad to know the situation:smiley:

FYI
We can use GPT NeoX Japanese from `pip install git+https://github.com/huggingface/transformers` because it's in the main branch.

### Expected behavior

`GPT Neox Japanese` must be able to import correctly.
Hey @SO0529, sorry about that! That's on me, I missed this in the release notes. I just removed it. For now you can install the repo from source as you have noted in order to use it.

Thanks for letting me know!<|||||>Thank you for quick response and update the release note!
We are looking forward to the next release when GPT NeoX Japanese will be available.
Let's close this issue. Thank you!