diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 73c5fdff4..e8c16ce06 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -77,7 +77,7 @@ repos:
         - --diff
         - --check
 -   repo: https://github.com/charliermarsh/ruff-pre-commit
-    rev: 'v0.0.270'
+    rev: 'v0.0.275'
     hooks:
     -   id: ruff
         name: ruff
diff --git a/pyproject.toml b/pyproject.toml
index c9b968f59..0f3585b79 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,10 @@ target-version = "py37"
 show-fixes = true
 ignore = ["PLR2004", "PLR0911", "PLR0912", "PLR0913", "PLR0915"]
 select = ["E", "F", "I", "PL", "UP", "RUF", "PTH", "C4", "B", "PIE", "SIM", "RET", "RSE",
-          "G", "ISC", "PT"]
+          "G", "ISC", "PT", "ASYNC", "TCH", "CPY", "SLOT", "PERF",]
 
 [tool.ruff.per-file-ignores]
 "tests/*.py" = ["B018"]
+"**/__init__.py" = ["CPY001"]
+"examples/**.py" = ["CPY001"]
+"tests/**.py" = ["RUF012"]
diff --git a/telegram/_files/inputsticker.py b/telegram/_files/inputsticker.py
index da78bb00f..c0ee2d5aa 100644
--- a/telegram/_files/inputsticker.py
+++ b/telegram/_files/inputsticker.py
@@ -18,15 +18,17 @@
 # along with this program.  If not, see [http://www.gnu.org/licenses/].
 """This module contains an object that represents a Telegram InputSticker."""
 
-from typing import Optional, Sequence, Tuple, Union
+from typing import TYPE_CHECKING, Optional, Sequence, Tuple, Union
 
-from telegram._files.inputfile import InputFile
 from telegram._files.sticker import MaskPosition
 from telegram._telegramobject import TelegramObject
 from telegram._utils.argumentparsing import parse_sequence_arg
 from telegram._utils.files import parse_file_input
 from telegram._utils.types import FileInput, JSONDict
 
+if TYPE_CHECKING:
+    from telegram._files.inputfile import InputFile
+
 
 class InputSticker(TelegramObject):
     """
diff --git a/telegram/_telegramobject.py b/telegram/_telegramobject.py
index 96fd4f8e9..fbc3a2840 100644
--- a/telegram/_telegramobject.py
+++ b/telegram/_telegramobject.py
@@ -28,6 +28,7 @@ from types import MappingProxyType
 from typing import (
     TYPE_CHECKING,
     Any,
+    ClassVar,
     Dict,
     Iterator,
     List,
@@ -92,7 +93,7 @@ class TelegramObject:
 
     # Used to cache the names of the parameters of the __init__ method of the class
     # Must be a private attribute to avoid name clashes between subclasses
-    __INIT_PARAMS: Set[str] = set()
+    __INIT_PARAMS: ClassVar[Set[str]] = set()
     # Used to check if __INIT_PARAMS has been set for the current class. Unfortunately, we can't
     # just check if `__INIT_PARAMS is None`, since subclasses use the parent class' __INIT_PARAMS
     # unless it's overridden
diff --git a/telegram/ext/_aioratelimiter.py b/telegram/ext/_aioratelimiter.py
index 8a647353d..6138a53b7 100644
--- a/telegram/ext/_aioratelimiter.py
+++ b/telegram/ext/_aioratelimiter.py
@@ -196,12 +196,11 @@ class AIORateLimiter(BaseRateLimiter[int]):
             self._get_group_limiter(group) if group and self._group_max_rate else null_context()
         )
 
-        async with group_context:  # skipcq: PTC-W0062
-            async with base_context:
-                # In case a retry_after was hit, we wait with processing the request
-                await self._retry_after_event.wait()
+        async with group_context, base_context:
+            # In case a retry_after was hit, we wait with processing the request
+            await self._retry_after_event.wait()
 
-                return await callback(*args, **kwargs)
+            return await callback(*args, **kwargs)
 
     # mypy doesn't understand that the last run of the for loop raises an exception
     async def process_request(
diff --git a/telegram/ext/_application.py b/telegram/ext/_application.py
index 31c037ca9..a051536c3 100644
--- a/telegram/ext/_application.py
+++ b/telegram/ext/_application.py
@@ -58,7 +58,6 @@ from telegram._utils.warnings import warn
 from telegram.error import TelegramError
 from telegram.ext._basehandler import BaseHandler
 from telegram.ext._basepersistence import BasePersistence
-from telegram.ext._baseupdateprocessor import BaseUpdateProcessor
 from telegram.ext._contexttypes import ContextTypes
 from telegram.ext._extbot import ExtBot
 from telegram.ext._updater import Updater
@@ -70,6 +69,7 @@ if TYPE_CHECKING:
     from telegram import Message
     from telegram.ext import ConversationHandler, JobQueue
     from telegram.ext._applicationbuilder import InitApplicationBuilder
+    from telegram.ext._baseupdateprocessor import BaseUpdateProcessor
     from telegram.ext._jobqueue import Job
 
 DEFAULT_GROUP: int = 0
diff --git a/telegram/ext/_dictpersistence.py b/telegram/ext/_dictpersistence.py
index d6f35f554..384ba8df2 100644
--- a/telegram/ext/_dictpersistence.py
+++ b/telegram/ext/_dictpersistence.py
@@ -19,12 +19,14 @@
 """This module contains the DictPersistence class."""
 import json
 from copy import deepcopy
-from typing import Any, Dict, Optional, cast
+from typing import TYPE_CHECKING, Any, Dict, Optional, cast
 
-from telegram._utils.types import JSONDict
 from telegram.ext import BasePersistence, PersistenceInput
 from telegram.ext._utils.types import CDCData, ConversationDict, ConversationKey
 
+if TYPE_CHECKING:
+    from telegram._utils.types import JSONDict
+
 
 class DictPersistence(BasePersistence[Dict[Any, Any], Dict[Any, Any], Dict[Any, Any]]):
     """Using Python's :obj:`dict` and :mod:`json` for making your bot persistent.
diff --git a/telegram/ext/_jobqueue.py b/telegram/ext/_jobqueue.py
index a645d4acc..3ff17d244 100644
--- a/telegram/ext/_jobqueue.py
+++ b/telegram/ext/_jobqueue.py
@@ -25,7 +25,6 @@ from typing import TYPE_CHECKING, Any, Generic, Optional, Tuple, Union, cast, ov
 try:
     import pytz
     from apscheduler.executors.asyncio import AsyncIOExecutor
-    from apscheduler.job import Job as APSJob
     from apscheduler.schedulers.asyncio import AsyncIOScheduler
 
     APS_AVAILABLE = True
@@ -38,6 +37,9 @@ from telegram.ext._extbot import ExtBot
 from telegram.ext._utils.types import CCT, JobCallback
 
 if TYPE_CHECKING:
+    if APS_AVAILABLE:
+        from apscheduler.job import Job as APSJob
+
     from telegram.ext import Application
 
 
diff --git a/tests/auxil/deprecations.py b/tests/auxil/deprecations.py
index 224ecdc40..00f5aa9c8 100644
--- a/tests/auxil/deprecations.py
+++ b/tests/auxil/deprecations.py
@@ -60,13 +60,13 @@ def check_thumb_deprecation_warnings_for_args_and_attrs(
     for i in range(expected_recwarn_length):
         assert issubclass(recwarn[i].category, PTBDeprecationWarning)
         assert f"{names[i]} '{deprecated_name}' to '{new_name}'" in str(recwarn[i].message), (
-            f'Warning issued by file {recwarn[i].filename} ("{str(recwarn[i].message)}") '
+            f'Warning issued by file {recwarn[i].filename} ("{recwarn[i].message}") '
             "does not contain expected phrase: "
             f"\"{names[i]} '{deprecated_name}' to '{new_name}'\""
         )
 
         assert recwarn[i].filename == calling_file, (
-            f'Warning for {names[i]} ("{str(recwarn[i].message)}") was issued by file '
+            f'Warning for {names[i]} ("{recwarn[i].message}") was issued by file '
             f"{recwarn[i].filename}, expected {calling_file}"
         )
 
diff --git a/tests/ext/test_jobqueue.py b/tests/ext/test_jobqueue.py
index e95feaf32..db3af0da7 100644
--- a/tests/ext/test_jobqueue.py
+++ b/tests/ext/test_jobqueue.py
@@ -492,7 +492,7 @@ class TestJobQueue:
         job_2 = job_queue.run_repeating(self.job_run_once, 0.2)
         job_3 = Job(self.job_run_once, 0.2)
         job_3._job = job.job
-        assert job == job
+        assert job == job  # noqa: PLR0124
         assert job != job_queue
         assert job != job_2
         assert job == job_3
diff --git a/tests/test_chatpermissions.py b/tests/test_chatpermissions.py
index 9585710c1..e5b9563c2 100644
--- a/tests/test_chatpermissions.py
+++ b/tests/test_chatpermissions.py
@@ -206,7 +206,7 @@ class TestChatPermissionsWithoutRequest(TestChatPermissionsBase):
 
     def test_equality_warning(self, recwarn, chat_permissions):
         recwarn.clear()
-        assert chat_permissions == chat_permissions
+        assert chat_permissions == ChatPermissions.all_permissions()
 
         assert str(recwarn[0].message) == (
             "In v21, granular media settings will be considered as well when comparing"
diff --git a/tests/test_keyboardbutton.py b/tests/test_keyboardbutton.py
index 84319acf0..a1f2f7466 100644
--- a/tests/test_keyboardbutton.py
+++ b/tests/test_keyboardbutton.py
@@ -136,7 +136,7 @@ class TestKeyboardButtonWithoutRequest(TestKeyboardButtonBase):
 
     def test_equality_warning(self, recwarn, keyboard_button):
         recwarn.clear()
-        assert keyboard_button == keyboard_button
+        assert keyboard_button == keyboard_button  # noqa: PLR0124
 
         assert str(recwarn[0].message) == (
             "In v21, `request_user` and `request_chat` will be considered as well when comparing"
diff --git a/tests/test_slots.py b/tests/test_slots.py
index fdd8619bc..cf257c748 100644
--- a/tests/test_slots.py
+++ b/tests/test_slots.py
@@ -37,7 +37,7 @@ def test_class_has_slots_and_no_dict():
 
         for name, cls in inspect.getmembers(module, inspect.isclass):
             if cls.__module__ != module.__name__ or any(  # exclude 'imported' modules
-                x in name for x in {"__class__", "__init__", "Queue", "Webhook"}
+                x in name for x in ("__class__", "__init__", "Queue", "Webhook")
             ):
                 continue
 
@@ -46,7 +46,7 @@ def test_class_has_slots_and_no_dict():
             assert not isinstance(cls.__slots__, str), f"{name!r}s slots shouldn't be strings"
 
             # specify if a certain module/class/base class should have dict-
-            if any(i in included for i in {cls.__module__, name, cls.__base__.__name__}):
+            if any(i in included for i in (cls.__module__, name, cls.__base__.__name__)):
                 assert "__dict__" in get_slots(cls), f"class {name!r} ({path}) has no __dict__"
                 continue