diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f16d1ffa..1cddf087 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,36 +1,14 @@
-ci:
-  autoupdate_schedule: monthly
 repos:
-  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.17.0
+  - repo: https://github.com/astral-sh/ruff-pre-commit
+    rev: v0.6.9
     hooks:
-      - id: pyupgrade
-        args: ["--py37-plus"]
-  - repo: https://github.com/asottile/reorder-python-imports
-    rev: v3.13.0
-    hooks:
-      - id: reorder-python-imports
-        args: ["--application-directories", "src"]
-        additional_dependencies: ["setuptools>60.9"]
-  - repo: https://github.com/psf/black
-    rev: 24.8.0
-    hooks:
-      - id: black
-  - repo: https://github.com/PyCQA/flake8
-    rev: 7.1.1
-    hooks:
-      - id: flake8
-        additional_dependencies:
-          - flake8-bugbear
-          - flake8-implicit-str-concat
-          - flake8-pyproject
-  - repo: https://github.com/peterdemin/pip-compile-multi
-    rev: v2.6.4
-    hooks:
-      - id: pip-compile-multi-verify
+      - id: ruff
+      - id: ruff-format
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v5.0.0
     hooks:
+      - id: check-merge-conflict
+      - id: debug-statements
       - id: fix-byte-order-marker
       - id: trailing-whitespace
       - id: end-of-file-fixer
diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 44df8af7..865c6859 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,4 +1,8 @@
 version: 2
+build:
+  os: ubuntu-22.04
+  tools:
+    python: '3.12'
 python:
   install:
     - requirements: requirements/docs.txt
@@ -7,7 +11,3 @@ python:
 sphinx:
   builder: dirhtml
   fail_on_warning: true
-build:
-  os: "ubuntu-22.04"
-  tools:
-    python: "3.11"
diff --git a/examples/recaptcha/app.py b/examples/recaptcha/app.py
index 150cc511..fa34d870 100644
--- a/examples/recaptcha/app.py
+++ b/examples/recaptcha/app.py
@@ -10,7 +10,6 @@
 from flask_wtf import FlaskForm
 from flask_wtf.recaptcha import RecaptchaField
 
-
 DEBUG = True
 SECRET_KEY = "secret"
 
diff --git a/pyproject.toml b/pyproject.toml
index 3b2a1567..154a6efc 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -75,30 +75,22 @@ exclude_lines = [
     "except ImportError:",
 ]
 
-[tool.flake8]
-# B = bugbear
-# E = pycodestyle errors
-# F = flake8 pyflakes
-# W = pycodestyle warnings
-# B9 = bugbear opinions
-# ISC = implicit-str-concat
-select = ["B", "E", "F", "W", "B9", "ISC"]
-ignore = [
-    # slice notation whitespace, invalid
-    "E203",
-    # line length, handled by bugbear B950
-    "E501",
-    # bare except, handled by bugbear B001
-    "E722",
-    # bin op line break, invalid
-    "W503",
-    # requires 'strict' argument for 'zip'
-    # that needs python >= 3.10
-    "B905",
-]
-# up to 88 allowed by bugbear B950
-max-line-length = 80
-per-file-ignores = [
-    # __init__ modules export names
-    "**/__init__.py: F401, F403",
+[tool.ruff]
+src = ["src"]
+fix = true
+show-fixes = true
+output-format = "full"
+
+[tool.ruff.lint]
+select = [
+    "B",  # flake8-bugbear
+    "E",  # pycodestyle error
+    "F",  # pyflakes
+    "I",  # isort
+    "UP",  # pyupgrade
+    "W",  # pycodestyle warning
 ]
+
+[tool.ruff.lint.isort]
+force-single-line = true
+order-by-type = false
diff --git a/src/flask_wtf/__init__.py b/src/flask_wtf/__init__.py
index be2649e2..c7814ab7 100644
--- a/src/flask_wtf/__init__.py
+++ b/src/flask_wtf/__init__.py
@@ -6,3 +6,11 @@
 from .recaptcha import RecaptchaWidget
 
 __version__ = "1.2.1"
+__all__ = [
+    "CSRFProtect",
+    "FlaskForm",
+    "Form",
+    "Recaptcha",
+    "RecaptchaField",
+    "RecaptchaWidget",
+]
diff --git a/src/flask_wtf/file.py b/src/flask_wtf/file.py
index a720dff8..98c45770 100644
--- a/src/flask_wtf/file.py
+++ b/src/flask_wtf/file.py
@@ -137,9 +137,8 @@ def __call__(self, form, field):
                 raise ValidationError(
                     self.message
                     or field.gettext(
-                        "File must be between {min_size} and {max_size} bytes.".format(
-                            min_size=self.min_size, max_size=self.max_size
-                        )
+                        f"File must be between {self.min_size}"
+                        f" and {self.max_size} bytes."
                     )
                 )
 
diff --git a/src/flask_wtf/recaptcha/__init__.py b/src/flask_wtf/recaptcha/__init__.py
index 3100d37e..c414a9fb 100644
--- a/src/flask_wtf/recaptcha/__init__.py
+++ b/src/flask_wtf/recaptcha/__init__.py
@@ -1,3 +1,5 @@
 from .fields import RecaptchaField
 from .validators import Recaptcha
 from .widgets import RecaptchaWidget
+
+__all__ = ["RecaptchaField", "RecaptchaWidget", "Recaptcha"]
diff --git a/tests/test_file.py b/tests/test_file.py
index 66d261be..87654d42 100644
--- a/tests/test_file.py
+++ b/tests/test_file.py
@@ -67,7 +67,8 @@ def test_file_allowed(form):
 
 def test_file_allowed_uploadset(app, form):
     pytest.importorskip("flask_uploads")
-    from flask_uploads import UploadSet, configure_uploads
+    from flask_uploads import configure_uploads
+    from flask_uploads import UploadSet
 
     app.config["UPLOADS_DEFAULT_DEST"] = "uploads"
     txt = UploadSet("txt", extensions=("txt",))
@@ -114,10 +115,8 @@ def test_file_size_invalid_file_size_fails_validation(
     with path.open("rb") as file:
         f = form(file=FileStorage(file))
         assert not f.validate()
-        assert f.file.errors[
-            0
-        ] == "File must be between {min_size} and {max_size} bytes.".format(
-            min_size=min_size, max_size=max_size
+        assert (
+            f.file.errors[0] == f"File must be between {min_size} and {max_size} bytes."
         )
 
 
@@ -190,7 +189,8 @@ def test_files_allowed(form):
 
 def test_files_allowed_uploadset(app, form):
     pytest.importorskip("flask_uploads")
-    from flask_uploads import UploadSet, configure_uploads
+    from flask_uploads import configure_uploads
+    from flask_uploads import UploadSet
 
     app.config["UPLOADS_DEFAULT_DEST"] = "uploads"
     txt = UploadSet("txt", extensions=("txt",))
@@ -245,10 +245,9 @@ def test_file_size_invalid_file_sizes_fails_validation(
     with path.open("rb") as file:
         f = form(files=[FileStorage(file)])
         assert not f.validate()
-        assert f.files.errors[
-            0
-        ] == "File must be between {min_size} and {max_size} bytes.".format(
-            min_size=min_size, max_size=max_size
+        assert (
+            f.files.errors[0]
+            == f"File must be between {min_size} and {max_size} bytes."
         )
 
 
@@ -257,10 +256,9 @@ def test_files_length(form, min_num=2, max_num=3):
 
     f = form(files=[FileStorage("1")])
     assert not f.validate()
-    assert f.files.errors[
-        0
-    ] == "Field must be between {min_num} and {max_num} characters long.".format(
-        min_num=min_num, max_num=max_num
+    assert (
+        f.files.errors[0]
+        == f"Field must be between {min_num} and {max_num} characters long."
     )
 
     f = form(