diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
deleted file mode 100644
index 462ac90..0000000
--- a/.github/workflows/build-docs.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-name: Manually publish documentation
-
-on:
-  workflow_dispatch:
-    inputs:
-      sphinxDocVersionManual:
-        description: "Version to set for documentation"
-        required: true
-        type: string
-
-jobs:
-  build_docs:
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v2
-
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v2
-        with:
-          python-version: 3.9
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install tox
-
-      - name: Build docs
-        env:
-          SPHINX_DOC_VERSION_MANUAL: ${{ inputs.sphinxDocVersionManual }}
-        run: tox -e docs
-
-      - name: Add nojekyll file
-        run: touch ./docs/_build/html/.nojekyll
-
-      - name: GH Pages Deployment
-        uses: JamesIves/github-pages-deploy-action@4.1.3
-        with:
-          branch: gh-pages # The branch the action should deploy to.
-          folder: ./docs/_build/html
-          clean: true # Automatically remove deleted files from the deploy branch
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 31b9b03..7fd791c 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -12,11 +12,11 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v2
+      - uses: actions/checkout@v4
+      - name: Set up Python 3.11
+        uses: actions/setup-python@v5
         with:
-          python-version: 3.9
+          python-version: 3.11
 
       - name: Install dependencies
         run: |
diff --git a/.github/workflows/pypi-test.yml b/.github/workflows/pypi-test.yml
index 2c7984e..19713b1 100644
--- a/.github/workflows/pypi-test.yml
+++ b/.github/workflows/pypi-test.yml
@@ -14,14 +14,14 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python-version: [ '3.9', '3.10', '3.11', '3.12', '3.13' ]
 
     name: Python ${{ matrix.python-version }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
 
       - name: Setup Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
           cache: "pip"
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 3c9601c..e60a5f4 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -17,19 +17,19 @@ repos:
   - id: mixed-line-ending
     args: ['--fix=auto']  # replace 'auto' with 'lf' to enforce Linux/Mac line endings or 'crlf' for Windows
 
-- repo: https://github.com/PyCQA/docformatter
-  rev: v1.7.5
-  hooks:
-    - id: docformatter
-      additional_dependencies: [tomli]
-      args: [--in-place, --wrap-descriptions=120, --wrap-summaries=120]
-      # --config, ./pyproject.toml
+# - repo: https://github.com/PyCQA/docformatter
+#   rev: master
+#   hooks:
+#     - id: docformatter
+#       additional_dependencies: [tomli]
+#       args: [--in-place, --wrap-descriptions=120, --wrap-summaries=120]
+#       # --config, ./pyproject.toml
 
-- repo: https://github.com/psf/black
-  rev: 24.8.0
-  hooks:
-  - id: black
-    language_version: python3
+# - repo: https://github.com/psf/black
+#   rev: 24.8.0
+#   hooks:
+#   - id: black
+#     language_version: python3
 
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
@@ -37,6 +37,7 @@ repos:
   hooks:
     - id: ruff
       args: [--fix, --exit-non-zero-on-fix]
+    - id: ruff-format
 
 ## If like to embrace black styles even in the docs:
 # - repo: https://github.com/asottile/blacken-docs
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16db670..e5704a3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## Version 0.6.0
+
+- chore: Remove Python 3.8 (EOL)
+- precommit: Replace docformatter with ruff's formatter
+
 ## Version 0.5.11
 
 - Methods to flatten a nested `BiocFrame` object.
diff --git a/docs/conf.py b/docs/conf.py
index 6458dd1..ea11f12 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -72,6 +72,7 @@
     "sphinx.ext.ifconfig",
     "sphinx.ext.mathjax",
     "sphinx.ext.napoleon",
+    "sphinx_autodoc_typehints",
 ]
 
 # Add any paths that contain templates here, relative to this directory.
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 2058619..c20cf60 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -7,4 +7,3 @@ myst-nb
 myst-parser[linkify]
 sphinx>=3.2.1
 sphinx-autodoc-typehints
-# nbsphinx
diff --git a/pyproject.toml b/pyproject.toml
index a7cea75..00aa968 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,6 +16,10 @@ extend-ignore = ["F821"]
 [tool.ruff.pydocstyle]
 convention = "google"
 
+[tool.ruff.format]
+docstring-code-format = true
+docstring-code-line-length = 20
+
 [tool.ruff.per-file-ignores]
 "__init__.py" = ["E402", "F401"]
 
diff --git a/setup.cfg b/setup.cfg
index 3127d13..ab16426 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -41,7 +41,7 @@ package_dir =
     =src
 
 # Require a min/specific Python version (comma-separated conditions)
-python_requires = >=3.8
+python_requires = >=3.9
 
 # Add here dependencies of your project (line-separated), e.g. requests>=2.2,<3.0.
 # Version specifiers like >=2.2,<3.0 avoid problems due to API changes in
diff --git a/src/biocframe/BiocFrame.py b/src/biocframe/BiocFrame.py
index 18d4e45..5ec0a87 100644
--- a/src/biocframe/BiocFrame.py
+++ b/src/biocframe/BiocFrame.py
@@ -50,8 +50,7 @@ def _validate_rows(
     if row_names is not None:
         if len(row_names) != number_of_rows:
             raise ValueError(
-                "Length of `row_names` and `number_of_rows` do not match, "
-                f"{len(row_names)} != {number_of_rows}"
+                "Length of `row_names` and `number_of_rows` do not match, " f"{len(row_names)} != {number_of_rows}"
             )
         if any(x is None for x in row_names):
             raise ValueError("`row_names` cannot contain None values.")
@@ -67,9 +66,7 @@ def _validate_columns(
 
     if column_data is not None:
         if column_data.shape[0] != len(column_names):
-            raise ValueError(
-                "Number of rows in `column_data` should be equal to the number of columns."
-            )
+            raise ValueError("Number of rows in `column_data` should be equal to the number of columns.")
 
 
 ############################
@@ -96,11 +93,7 @@ def __iter__(self):
 
     def __next__(self):
         if self._current_index < len(self._bframe):
-            iter_row_index = (
-                self._bframe.row_names[self._current_index]
-                if self._bframe.row_names is not None
-                else None
-            )
+            iter_row_index = self._bframe.row_names[self._current_index] if self._bframe.row_names is not None else None
 
             iter_slice = self._bframe.row(self._current_index)
             self._current_index += 1
@@ -280,9 +273,7 @@ def __str__(self) -> str:
                 data = self._data[col]
                 showed = ut.show_as_cell(data, indices)
                 header = [col, "<" + ut.print_type(data) + ">"]
-                showed = ut.truncate_strings(
-                    showed, width=max(40, len(header[0]), len(header[1]))
-                )
+                showed = ut.truncate_strings(showed, width=max(40, len(header[0]), len(header[1])))
                 if insert_ellipsis:
                     showed = showed[:3] + ["..."] + showed[3:]
                 columns.append(header + showed)
@@ -333,9 +324,7 @@ def get_row_names(self) -> Optional[ut.Names]:
         """
         return self._row_names
 
-    def set_row_names(
-        self, names: Optional[List], in_place: bool = False
-    ) -> "BiocFrame":
+    def set_row_names(self, names: Optional[List], in_place: bool = False) -> "BiocFrame":
         """
         Args:
             names:
@@ -505,9 +494,7 @@ def get_column_data(self, with_names: bool = True) -> Union[None, "BiocFrame"]:
             output = output.set_row_names(self._column_names)
         return output
 
-    def set_column_data(
-        self, column_data: Union[None, "BiocFrame"], in_place: bool = False
-    ) -> "BiocFrame":
+    def set_column_data(self, column_data: Union[None, "BiocFrame"], in_place: bool = False) -> "BiocFrame":
         """
         Args:
             column_data:
@@ -524,9 +511,7 @@ def set_column_data(
         """
         if column_data is not None:
             if column_data.shape[0] != self.shape[1]:
-                raise ValueError(
-                    "Number of rows in `column_data` should be equal to the number of columns."
-                )
+                raise ValueError("Number of rows in `column_data` should be equal to the number of columns.")
 
         output = self._define_output(in_place)
         output._column_data = column_data
@@ -570,9 +555,7 @@ def set_metadata(self, metadata: dict, in_place: bool = False) -> "BiocFrame":
             or as a reference to the (in-place-modified) original.
         """
         if not isinstance(metadata, dict):
-            raise TypeError(
-                f"`metadata` must be a dictionary, provided {type(metadata)}."
-            )
+            raise TypeError(f"`metadata` must be a dictionary, provided {type(metadata)}.")
         output = self._define_output(in_place)
         output._metadata = metadata
         return output
@@ -633,9 +616,7 @@ def get_column(self, column: Union[str, int]) -> Any:
 
             return self._data[column]
 
-        raise TypeError(
-            f"'column' must be a string or integer, provided '{type(column)}'."
-        )
+        raise TypeError(f"'column' must be a string or integer, provided '{type(column)}'.")
 
     def column(self, column: Union[str, int]) -> Any:
         """Alias for :py:meth:`~get_column`, provided for back-compatibility only."""
@@ -714,9 +695,7 @@ def get_slice(
         """
         new_column_names = self._column_names
         if not (isinstance(columns, slice) and columns == slice(None)):
-            new_column_indices, _ = ut.normalize_subscript(
-                columns, len(new_column_names), new_column_names
-            )
+            new_column_indices, _ = ut.normalize_subscript(columns, len(new_column_names), new_column_names)
             new_column_names = ut.subset_sequence(new_column_names, new_column_indices)
 
         new_data = {}
@@ -727,9 +706,7 @@ def get_slice(
         new_number_of_rows = self.shape[0]
         if not (isinstance(rows, slice) and rows == slice(None)):
             new_row_names = self.row_names
-            new_row_indices, _ = ut.normalize_subscript(
-                rows, self.shape[0], new_row_names
-            )
+            new_row_indices, _ = ut.normalize_subscript(rows, self.shape[0], new_row_names)
 
             new_number_of_rows = len(new_row_indices)
             for k, v in new_data.items():
@@ -761,9 +738,7 @@ def slice(self, rows: Sequence, columns: Sequence) -> "BiocFrame":
             columns = slice(None)
         return self.__getitem__((rows, columns))
 
-    def __getitem__(
-        self, args: Union[int, str, Sequence, tuple]
-    ) -> Union["BiocFrame", Any]:
+    def __getitem__(self, args: Union[int, str, Sequence, tuple]) -> Union["BiocFrame", Any]:
         """Wrapper around :py:attr:`~get_column` and :py:attr:`~get_slice` to obtain a slice of a ``BiocFrame`` or any
         of its columns.
 
@@ -879,13 +854,9 @@ def set_slice(
         if not in_place:
             output._data = copy(output._data)
 
-        row_idx, _ = ut.normalize_subscript(
-            rows, output.shape[0], names=output._row_names
-        )
+        row_idx, _ = ut.normalize_subscript(rows, output.shape[0], names=output._row_names)
 
-        col_idx, _ = ut.normalize_subscript(
-            columns, output.shape[1], names=output._column_names
-        )
+        col_idx, _ = ut.normalize_subscript(columns, output.shape[1], names=output._column_names)
 
         for i, x in enumerate(col_idx):
             nm = output._column_names[x]
@@ -912,9 +883,7 @@ def __delitem__(self, name: str):
         )
         self.remove_column(name, in_place=True)
 
-    def set_column(
-        self, column: Union[int, str], value: Any, in_place: bool = False
-    ) -> "BiocFrame":
+    def set_column(self, column: Union[int, str], value: Any, in_place: bool = False) -> "BiocFrame":
         """Modify an existing column or add a new column. This is a convenience wrapper around :py:attr:`~set_columns`.
 
         Args:
@@ -935,9 +904,7 @@ def set_column(
         """
         return self.set_columns({column: value}, in_place=in_place)
 
-    def set_columns(
-        self, columns: Dict[str, Any], in_place: bool = False
-    ) -> "BiocFrame":
+    def set_columns(self, columns: Dict[str, Any], in_place: bool = False) -> "BiocFrame":
         """Modify existing columns or add new columns.
 
         Args:
@@ -984,9 +951,7 @@ def set_columns(
 
         return output
 
-    def remove_column(
-        self, column: Union[int, str], in_place: bool = False
-    ) -> "BiocFrame":
+    def remove_column(self, column: Union[int, str], in_place: bool = False) -> "BiocFrame":
         """Remove a column. This is a convenience wrapper around :py:attr:`~remove_columns`.
 
         Args:
@@ -1002,9 +967,7 @@ def remove_column(
         """
         return self.remove_columns([column], in_place=in_place)
 
-    def remove_columns(
-        self, columns: Sequence[Union[int, str]], in_place: bool = False
-    ) -> "BiocFrame":
+    def remove_columns(self, columns: Sequence[Union[int, str]], in_place: bool = False) -> "BiocFrame":
         """Remove any number of existing columns.
 
         Args:
@@ -1057,9 +1020,7 @@ def __deepcopy__(self, memo=None, _nil=[]):
         _num_rows_copy = deepcopy(self._number_of_rows)
         _rownames_copy = deepcopy(self.row_names)
         _metadata_copy = deepcopy(self.metadata)
-        _column_data_copy = (
-            deepcopy(self._column_data) if self._column_data is not None else None
-        )
+        _column_data_copy = deepcopy(self._column_data) if self._column_data is not None else None
 
         # copy dictionary first
         _data_copy = OrderedDict()
@@ -1067,9 +1028,7 @@ def __deepcopy__(self, memo=None, _nil=[]):
             try:
                 _data_copy[col] = deepcopy(self.column(col))
             except Exception as e:
-                raise Exception(
-                    f"Cannot `deepcopy` column '{col}', full error: {str(e)}"
-                ) from e
+                raise Exception(f"Cannot `deepcopy` column '{col}', full error: {str(e)}") from e
 
         current_class_const = type(self)
         return current_class_const(
@@ -1106,9 +1065,7 @@ def copy(self):
     ######>> split by <<######
     ##########################
 
-    def split(
-        self, column_name: str, only_indices: bool = False
-    ) -> Dict[str, Union["BiocFrame", List[int]]]:
+    def split(self, column_name: str, only_indices: bool = False) -> Dict[str, Union["BiocFrame", List[int]]]:
         """Split the object by a column.
 
         Args:
@@ -1246,9 +1203,7 @@ def to_polars(self):
     ######>> Miscellaneous <<######
     ###############################
 
-    def flatten(
-        self, as_type: Literal["dict", "biocframe"] = "dict", delim: str = "."
-    ) -> "BiocFrame":
+    def flatten(self, as_type: Literal["dict", "biocframe"] = "dict", delim: str = ".") -> "BiocFrame":
         """Flatten a nested BiocFrame object.
 
         Args:
@@ -1404,11 +1359,7 @@ def _combine_cols_bframes(*x: BiocFrame):
         all_column_data.append(df._column_data)
         for n in df._column_names:
             if n in all_data:
-                raise ValueError(
-                    "All objects to combine must have different columns (duplicated '"
-                    + n
-                    + "')."
-                )
+                raise ValueError("All objects to combine must have different columns (duplicated '" + n + "').")
             all_data[n] = df._data[n]
 
     combined_column_data = None
@@ -1419,10 +1370,7 @@ def _combine_cols_bframes(*x: BiocFrame):
         try:
             combined_column_data = ut.combine_rows(*all_column_data)
         except Exception as ex:
-            raise ValueError(
-                "Failed to combine 'column_data' when combining 'BiocFrame' objects by column. "
-                + str(ex)
-            )
+            raise ValueError("Failed to combine 'column_data' when combining 'BiocFrame' objects by column. " + str(ex))
 
     current_class_const = type(first)
     return current_class_const(
@@ -1463,9 +1411,7 @@ def _show_as_cell_BiocFrame(x: BiocFrame, indices: Sequence[int]) -> List[str]:
 
 
 @ut.assign_rows.register(BiocFrame)
-def _assign_rows_BiocFrame(
-    x: BiocFrame, indices: Sequence[int], replacement: BiocFrame
-) -> BiocFrame:
+def _assign_rows_BiocFrame(x: BiocFrame, indices: Sequence[int], replacement: BiocFrame) -> BiocFrame:
     return x.set_slice(indices, replacement.get_column_names(), replacement)
 
 
@@ -1536,20 +1482,12 @@ def relaxed_combine_rows(*x: BiocFrame) -> BiocFrame:
 def _normalize_merge_key_to_index(x, i, by):
     if by is None:
         if x[i]._row_names is None:
-            raise ValueError(
-                "Row names required as key but are absent in object " + str(i) + "."
-            )
+            raise ValueError("Row names required as key but are absent in object " + str(i) + ".")
         return None
     elif isinstance(by, int):
         nc = x[i].shape[1]
         if by < -nc or by >= nc:
-            raise ValueError(
-                "Integer 'by' is out of range for object "
-                + str(i)
-                + " ("
-                + str(nc)
-                + " columns)."
-            )
+            raise ValueError("Integer 'by' is out of range for object " + str(i) + " (" + str(nc) + " columns).")
         if by < 0:
             return by + nc
         else:
@@ -1560,9 +1498,7 @@ def _normalize_merge_key_to_index(x, i, by):
             raise ValueError("No key column '" + by + "' in object " + str(i) + ".")
         return ib
     else:
-        raise TypeError(
-            "Unknown type '" + type(by).__name__ + "' for the 'by' argument."
-        )
+        raise TypeError("Unknown type '" + type(by).__name__ + "' for the 'by' argument.")
 
 
 def _get_merge_key(x, i, by):
@@ -1679,11 +1615,7 @@ def merge(
                     counter += 1
                     y = original + " (" + str(counter) + ")"
             elif y in new_data:
-                raise ValueError(
-                    "Detected duplicate columns across objects to be merged ('"
-                    + y
-                    + "')."
-                )
+                raise ValueError("Detected duplicate columns across objects to be merged ('" + y + "').")
 
             new_columns.append(y)
             if noop: