diff --git a/.github/disclaimer.txt b/.github/disclaimer.txt
index aa3ca3d..f45af93 100644
--- a/.github/disclaimer.txt
+++ b/.github/disclaimer.txt
@@ -1,3 +1,3 @@
-Copyright (C) 2022 Anaconda, Inc
+Copyright (C) 2012 Anaconda, Inc
 Copyright (C) 2023 conda
 SPDX-License-Identifier: BSD-3-Clause
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index a1e75a6..1a98119 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -31,7 +31,7 @@ repos:
       # auto format Python codes within docstrings
       - id: blacken-docs
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.5.7
+    rev: v0.6.2
     hooks:
       # lint & attempt to correct failures (e.g. pyupgrade)
       - id: ruff
@@ -56,4 +56,4 @@ repos:
     hooks:
       - id: insert-license
         files: \.py$
-        args: [--license-filepath, .github/disclaimer.txt, --no-extra-eol]
\ No newline at end of file
+        args: [--license-filepath, .github/disclaimer.txt, --no-extra-eol]
diff --git a/README.md b/README.md
index 130e871..69fdbf3 100644
--- a/README.md
+++ b/README.md
@@ -19,4 +19,4 @@ instructions on how to install, use and make the most out the `classic` conda so
 | --- | :-: |
 | [`conda install defaults::conda-classic-solver`](https://anaconda.org/anaconda/conda-classic-solver) | [![Anaconda-Server Badge](https://anaconda.org/anaconda/conda-classic-solver/badges/version.svg)](https://anaconda.org/anaconda/conda-classic-solver) |
 | [`conda install conda-forge::conda-classic-solver`](https://anaconda.org/conda-forge/conda-classic-solver) | [![Anaconda-Server Badge](https://anaconda.org/conda-forge/conda-classic-solver/badges/version.svg)](https://anaconda.org/conda-forge/conda-classic-solver) |
-| [`conda install conda-canary/label/dev::conda-classic-solver`](https://anaconda.org/conda-canary/conda-classic-solver) | [![Anaconda-Server Badge](https://anaconda.org/conda-canary/conda-classic-solver/badges/version.svg)](https://anaconda.org/conda-canary/conda-classic-solver) |
\ No newline at end of file
+| [`conda install conda-canary/label/dev::conda-classic-solver`](https://anaconda.org/conda-canary/conda-classic-solver) | [![Anaconda-Server Badge](https://anaconda.org/conda-canary/conda-classic-solver/badges/version.svg)](https://anaconda.org/conda-canary/conda-classic-solver) |
diff --git a/conda_classic_solver/plugin.py b/conda_classic_solver/plugin.py
index e0947ba..84c4b0b 100644
--- a/conda_classic_solver/plugin.py
+++ b/conda_classic_solver/plugin.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2022 Anaconda, Inc
+# Copyright (C) 2012 Anaconda, Inc
 # Copyright (C) 2023 conda
 # SPDX-License-Identifier: BSD-3-Clause
 """
diff --git a/conda_classic_solver/solve.py b/conda_classic_solver/solve.py
index 2ce3737..6688ebe 100644
--- a/conda_classic_solver/solve.py
+++ b/conda_classic_solver/solve.py
@@ -129,6 +129,7 @@ def solve_final_state(
         force_remove = context.force_remove if force_remove is NULL else force_remove
 
         log.debug(
+            # noqa
             "solving prefix %s\n"
             "  specs_to_remove: %s\n"
             "  specs_to_add: %s\n"
diff --git a/docs/conf.py b/docs/conf.py
index 82e88bd..b633308 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,4 +1,4 @@
-# Copyright (C) 2022 Anaconda, Inc
+# Copyright (C) 2012 Anaconda, Inc
 # Copyright (C) 2023 conda
 # SPDX-License-Identifier: BSD-3-Clause
 # Configuration file for the Sphinx documentation builder.
diff --git a/pyproject.toml b/pyproject.toml
index f72c1dd..a21d524 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,6 @@ markers = [
 [tool.ruff]
 exclude = ["tests/data/"]
 target-version = "py38"
-line-length = 99
 
 [tool.ruff.lint]
 # E, W = pycodestyle errors and warnings
diff --git a/tests/test_logic.py b/tests/test_logic.py
index 85d8f08..42ee203 100644
--- a/tests/test_logic.py
+++ b/tests/test_logic.py
@@ -1,11 +1,17 @@
 # Copyright (C) 2012 Anaconda, Inc
+# Copyright (C) 2023 conda
 # SPDX-License-Identifier: BSD-3-Clause
 from itertools import chain, combinations, permutations, product
 
 import pytest
 from conda.testing.helpers import raises
 
-from conda_classic_solver.logic import FALSE, TRUE, Clauses, minimal_unsatisfiable_subset
+from conda_classic_solver.logic import (
+    FALSE,
+    TRUE,
+    Clauses,
+    minimal_unsatisfiable_subset,
+)
 
 # These routines implement logical tests with short-circuiting
 # and propagation of unknown values:
diff --git a/tests/test_placeholder.py b/tests/test_placeholder.py
index 498b664..9ad56b1 100644
--- a/tests/test_placeholder.py
+++ b/tests/test_placeholder.py
@@ -1,6 +1,7 @@
-# Copyright (C) 2022 Anaconda, Inc
+# Copyright (C) 2012 Anaconda, Inc
 # Copyright (C) 2023 conda
 # SPDX-License-Identifier: BSD-3-Clause
 
+
 def test_import():
     from conda_classic_solver import ClassicSolver  # noqa
diff --git a/tests/test_solvers.py b/tests/test_solvers.py
index bbe6e58..cb5638f 100644
--- a/tests/test_solvers.py
+++ b/tests/test_solvers.py
@@ -1,4 +1,5 @@
 # Copyright (C) 2012 Anaconda, Inc
+# Copyright (C) 2023 conda
 # SPDX-License-Identifier: BSD-3-Clause
 from __future__ import annotations