diff --git a/CHANGELOG.md b/CHANGELOG.md
index 14eb688..6142016 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,7 @@ library build backend.
 * `-i` option is now deprecated and replaced by traditional CLI input argument listing
 * Project is now built using Poetry
 * Project requires code formatting using Black and iSort
+* Dedicated GPU package `spleeter-gpu` is not supported anymore, `spleeter` package will support both CPU and GPU hardware
 
 ### API changes:
 
diff --git a/README.md b/README.md
index db6915e..c77362d 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,9 @@
 
 [![Github actions](https://github.com/deezer/spleeter/workflows/pytest/badge.svg)](https://github.com/deezer/spleeter/actions) ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/spleeter) [![PyPI version](https://badge.fury.io/py/spleeter.svg)](https://badge.fury.io/py/spleeter) [![Conda](https://img.shields.io/conda/vn/conda-forge/spleeter)](https://anaconda.org/conda-forge/spleeter) [![Docker Pulls](https://img.shields.io/docker/pulls/researchdeezer/spleeter)](https://hub.docker.com/r/researchdeezer/spleeter) [![Open In Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/deezer/spleeter/blob/master/spleeter.ipynb) [![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/spleeter/community) [![status](https://joss.theoj.org/papers/259e5efe669945a343bad6eccb89018b/status.svg)](https://joss.theoj.org/papers/259e5efe669945a343bad6eccb89018b)
 
+> :warning: [Spleeter 2.1.0](https://pypi.org/project/spleeter/) release introduces some breaking changes, including new CLI option naming for input, and the drop
+> of dedicated GPU package. Please read [CHANGELOG](CHANGELOG.md) for more details.
+
 ## About
 
 **Spleeter** is [Deezer](https://www.deezer.com/) source separation library with pretrained models
@@ -46,7 +49,7 @@ conda install -c conda-forge spleeter
 # download an example audio file (if you don't have wget, use another tool for downloading)
 wget https://github.com/deezer/spleeter/raw/master/audio_example.mp3
 # separate the example audio into two components
-spleeter separate -i audio_example.mp3 -p spleeter:2stems -o output
+spleeter separate -p spleeter:2stems -o output audio_example.mp3
 ```
 
 You should get two separated audio files (`vocals.wav` and `accompaniment.wav`) in the `output/audio_example` folder.
@@ -55,13 +58,18 @@ For a detailed documentation, please check the [repository wiki](https://github.
 
 ## Development and Testing
 
-The following set of commands will clone this repository, create a virtual environment provisioned with the dependencies and run the tests (will take a few minutes):
+This project is managed using [Poetry](https://python-poetry.org/docs/basic-usage/), to run test suite you
+can execute the following set of commands:
 
 ```bash
+# Clone spleeter repository
 git clone https://github.com/Deezer/spleeter && cd spleeter
-python -m venv spleeterenv && source spleeterenv/bin/activate
-pip install . && pip install pytest pytest-xdist
-make test
+# Install poetry
+pip install poetry
+# Install spleeter dependencies
+poetry install
+# Run unit test suite
+poetry run pytest tests/
 ```
 
 ## Reference