diff --git a/CHANGELOG.md b/CHANGELOG.md
index 068914d..31dd9ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changelog
 
-## Unreleased
+
+## 0.3.0 - 27 April 2024
 
 ### Handling gene clusters & reverse complements in resfinder
 - Resfinder has gene clusters which can't be passed through RGI using 'contig' mode.
@@ -17,11 +18,12 @@
 - A total of 10 ARO mappings changed in ARG-ANNOT
 
 ### argnorm.lib: Making argNorm more usable as a library
-- A file called `lib.py` will be introduced so that users can use argNorm as a library more easily.
-- Users can import the `map_to_aro` function using `from argnorm.lib import map_to_aro`. The function takes a gene name as input, maps the gene to the ARO and returns a pronto term object with the ARO mapping.
+- Introduce `argnorm.lib` module
+- Users can import the `map_to_aro` function from `argnorm.lib`. The function takes a gene name as input, maps the gene to the ARO and returns a pronto term object with the ARO mapping.
 - The `get_aro_mapping_table` function, previously within the BaseNormalizer class, has also been moved to `lib.py` to give users the ability to access the mapping tables being used for normalization.
 - With the introduction of `lib.py`, users will be able to access core mapping utilities through `argnorm.lib`, drug categorization through `argnorm.drug_categorization`, and the traditional normalizers through `argnorm.normalizers`.
 
+
 ## 0.2.0 - 26 March 2024
 
 #### ARO Mapping & Normalization
diff --git a/docs/images/whatsnew.md b/docs/whatsnew.md
similarity index 77%
rename from docs/images/whatsnew.md
rename to docs/whatsnew.md
index 6cd7be4..d6365ab 100644
--- a/docs/images/whatsnew.md
+++ b/docs/whatsnew.md
@@ -1,5 +1,17 @@
 ## What's New
 
+## 0.3.0 - 27 April 2024
+
+### User-facing changes
+- Improved Resfinder mappings (40 gene clusters and 9 reverse complements were manually curated)
+- Updated ARG-ANNOT mappings (a total of 10 mappings changed)
+- argNorm is now more usable as a library
+- Remove warnings
+
+### Internal changes
+- Code has been refactored to be simpler
+
+
 ## 0.2.0 - 26 March 2024
 
 #### ARO Mapping & Normalization
diff --git a/setup.py b/setup.py
index 77d69cc..06411bd 100644
--- a/setup.py
+++ b/setup.py
@@ -1,50 +1,42 @@
 from setuptools import setup
-from setuptools import find_packages
 
-NAME = "argnorm"
-AUTHOR = "See README"
-EMAIL = "luispedro@big-data-biology.org"
-URL = "https://github.com/BigDataBiology/argNorm"
-LICENSE = "MIT"
 DESCRIPTION = """
-Normalize antibiotic resistance genes (ARGs) abundance tables (e.g., from metagenomics) by using the ARO ontology (developed by CARD).
-
+Normalize antibiotic resistance genes (ARGs) results by using the ARO ontology (developed by CARD).
 """
 
 
-if __name__ == "__main__":
-    setup(
-        name=NAME,
-        version="0.2.0",
-        author=AUTHOR,
-        author_email=EMAIL,
-        url=URL,
-        license=LICENSE,
-        description=DESCRIPTION,
-        packages=['argnorm', 'argnorm.data'],
-        include_package_data=True,
-        package_dir={'argnorm': 'argnorm' },
-        package_data={'argnorm': ['data/*.tsv', 'data/manual_curation/*.tsv']},
-        install_requires=open("./requirements.txt", "r").read().splitlines(),
-        long_description=open("./README.md", "r").read(),
-        long_description_content_type='text/markdown',
-        entry_points={
-            "console_scripts": [
-                "argnorm=argnorm.cli:main"
-            ]
-        },
-        zip_safe=False,
-        classifiers=[
-            "Topic :: Scientific/Engineering :: Bio-Informatics",
-            "Programming Language :: Python :: 3.7",
-            "Programming Language :: Python :: 3.8",
-            "Programming Language :: Python :: 3.9",
-            "Programming Language :: Python :: 3.10",
-            "Programming Language :: Python :: 3.11",
-            "Programming Language :: Python :: 3.12",
-            "Development Status :: 4 - Beta",
-            "License :: OSI Approved :: MIT License",
-            "Operating System :: OS Independent",
-            "Natural Language :: English"
-        ],
-    )
+setup(
+    name='argnorm',
+    version="0.3.0",
+    author='ArgNorm Developers',
+    author_email='luispedro@big-data-biology.org',
+    url="https://github.com/BigDataBiology/argNorm",
+    license='MIT',
+    description=DESCRIPTION,
+    packages=['argnorm', 'argnorm.data'],
+    include_package_data=True,
+    package_dir={'argnorm': 'argnorm' },
+    package_data={'argnorm': ['data/*.tsv', 'data/manual_curation/*.tsv']},
+    install_requires=open("./requirements.txt", "r").read().splitlines(),
+    long_description=open("./README.md", "r").read(),
+    long_description_content_type='text/markdown',
+    entry_points={
+        "console_scripts": [
+            "argnorm=argnorm.cli:main"
+        ]
+    },
+    zip_safe=False,
+    classifiers=[
+        "Topic :: Scientific/Engineering :: Bio-Informatics",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
+        "Programming Language :: Python :: 3.12",
+        "Development Status :: 4 - Beta",
+        "License :: OSI Approved :: MIT License",
+        "Operating System :: OS Independent",
+        "Natural Language :: English"
+    ],
+)