diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index dbe907783..70463c491 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -9,7 +9,10 @@ updates:
     # Enable version updates for development dependencies
     directory: "/"
     schedule:
-      interval: "monthly"
+      interval: "cron"
+      cronjob: "0 0 1 */3 *" # Run once every 3 months
+    cooldown:
+      default-days: 7
     versioning-strategy: "increase-if-necessary"
     groups:
       dev-deps:
@@ -20,7 +23,10 @@ updates:
     # Enable version updates for GitHub Actions
     directory: "/"
     schedule:
-      interval: "monthly"
+      interval: "cron"
+      cronjob: "0 0 1 */3 *" # Run once every 3 months
+    cooldown:
+      default-days: 7
     groups:
       github-actions:
         patterns:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 796e7c65a..e9655039f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,12 +33,14 @@ jobs:
         ]
       fail-fast: false
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # 6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10  # 6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
     - name: Install uv
-      uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098  # 7.3.1
+      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # 8.1.0
+      with:
+        enable-cache: false
     - name: Install tox
       run: uv tool install tox --with tox-uv
     - name: Setup SocketCAN
@@ -66,7 +68,7 @@ jobs:
     needs: test
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # 6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10  # 6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
@@ -79,12 +81,14 @@ jobs:
   static-code-analysis:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # 6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10  # 6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
     - name: Install uv
-      uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098  # 7.3.1
+      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # 8.1.0
+      with:
+        enable-cache: false
     - name: Install tox
       run: uv tool install tox --with tox-uv
     - name: Run linters
@@ -97,12 +101,14 @@ jobs:
   docs:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # 6.0.2
+    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10  # 6.0.3
       with:
         fetch-depth: 0
         persist-credentials: false
     - name: Install uv
-      uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098  # 7.3.1
+      uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # 8.1.0
+      with:
+        enable-cache: false
     - name: Install tox
       run: uv tool install tox --with tox-uv
     - name: Build documentation
@@ -113,18 +119,20 @@ jobs:
     name: Packaging
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # 6.0.2
+      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10  # 6.0.3
         with:
           fetch-depth: 0
           persist-credentials: false
       - name: Install uv
-        uses: astral-sh/setup-uv@5a095e7a2014a4212f075830d4f7277575a9d098  # 7.3.1
+        uses: astral-sh/setup-uv@08807647e7069bb48b6ef5acd8ec9567f424441b  # 8.1.0
+        with:
+          enable-cache: false
       - name: Build wheel and sdist
         run: uv build
       - name: Check build artifacts
         run: uvx twine check --strict dist/*
       - name: Save artifacts
-        uses: actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f  # 7.0.0
+        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a  # 7.0.1
         with:
           name: release
           path: ./dist
@@ -140,7 +148,7 @@ jobs:
     # upload to PyPI only on release
     if: github.event.release && github.event.action == 'published'
     steps:
-      - uses: actions/download-artifact@70fc10c6e5e1ce46ad2ea6f2b72d43f7d47b13c3  # 8.0.0
+      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c  # 8.0.1
         with:
           path: dist
           merge-multiple: true
@@ -151,4 +159,4 @@ jobs:
           subject-path: 'dist/*'
 
       - name: Publish release distributions to PyPI
-        uses: pypa/gh-action-pypi-publish@ed0c53931b1dc9bd32cbe73a98c7f6766f8a527e  # 1.13.0
+        uses: pypa/gh-action-pypi-publish@cef221092ed1bacb1cc03d23a2d87d1d172e277b  # 1.14.0
diff --git a/.mergify.yml b/.mergify.yml
deleted file mode 100644
index 52b243cd3..000000000
--- a/.mergify.yml
+++ /dev/null
@@ -1,25 +0,0 @@
-queue_rules:
-  - name: default
-    conditions:
-      - "status-success=test"  # "GitHub Actions works slightly differently [...], only the job name is used."
-      - "status-success=format"
-
-pull_request_rules:
-  - name: Automatic merge passing PR on up to date branch with approving CR
-    conditions:
-      - "base=develop"
-      - "#approved-reviews-by>=1"
-      - "#review-requested=0"
-      - "#changes-requested-reviews-by=0"
-      - "status-success=test"
-      - "status-success=format"
-      - "label!=work-in-progress"
-    actions:
-      queue:
-        name: default
-
-  - name: Delete head branch after merge
-    conditions:
-      - merged
-    actions:
-      delete_head_branch: {}
diff --git a/can/bit_timing.py b/can/bit_timing.py
index 2bb04bfbe..4311ff9a4 100644
--- a/can/bit_timing.py
+++ b/can/bit_timing.py
@@ -74,8 +74,8 @@ def __init__(
             "sjw": sjw,
             "nof_samples": nof_samples,
         }
-        self._validate()
         if strict:
+            self._validate()
             self._restrict_to_minimum_range()
 
     def _validate(self) -> None:
diff --git a/can/interfaces/pcan/basic.py b/can/interfaces/pcan/basic.py
index 4d175c645..3654699c5 100644
--- a/can/interfaces/pcan/basic.py
+++ b/can/interfaces/pcan/basic.py
@@ -990,12 +990,10 @@ def GetValue(self, Channel, Parameter):
             logger.error("Exception on PCANBasic.GetValue")
             raise
 
-    # Returns a descriptive text of a given TPCANStatus
-    # error code, in any desired language
+    # Configures or sets a PCAN Channel value
     #
     def SetValue(self, Channel, Parameter, Buffer):
-        """Returns a descriptive text of a given TPCANStatus error
-        code, in any desired language
+        """Configures or sets a PCAN Channel value
 
         Remarks:
           Parameters can be present or not according with the kind
@@ -1036,7 +1034,8 @@ def SetValue(self, Channel, Parameter, Buffer):
             raise
 
     def GetErrorText(self, Error, Language=0):
-        """Configures or sets a PCAN Channel value
+        """Returns a descriptive text of a given TPCANStatus error
+        code, in any desired language
 
         Remarks:
 
diff --git a/can/notifier.py b/can/notifier.py
index cb91cf7b4..fd21a0662 100644
--- a/can/notifier.py
+++ b/can/notifier.py
@@ -133,7 +133,7 @@ def __init__(
         :raises ValueError:
             If a passed in *bus* is already assigned to an active :class:`~can.Notifier`.
         """
-        self.listeners: list[MessageRecipient] = list(listeners)
+        self.listeners: set[MessageRecipient] = set(listeners)
         self._bus_list: list[BusABC] = []
         self.timeout = timeout
         self._loop = loop
@@ -278,20 +278,18 @@ def _on_error(self, exc: Exception) -> bool:
         return was_handled
 
     def add_listener(self, listener: MessageRecipient) -> None:
-        """Add new Listener to the notification list.
-        If it is already present, it will be called two times
-        each time a message arrives.
+        """Add new Listener to the notification set.
 
         :param listener: Listener to be added to the list to be notified
         """
-        self.listeners.append(listener)
+        self.listeners.add(listener)
 
     def remove_listener(self, listener: MessageRecipient) -> None:
-        """Remove a listener from the notification list. This method
+        """Remove a listener from the notification set. This method
         throws an exception if the given listener is not part of the
         stored listeners.
 
-        :param listener: Listener to be removed from the list to be notified
+        :param listener: Listener to be removed from the set to be notified
         :raises ValueError: if `listener` was never added to this notifier
         """
         self.listeners.remove(listener)
diff --git a/doc/changelog.d/2061.fixed.rst b/doc/changelog.d/2061.fixed.rst
new file mode 100644
index 000000000..48afb4c86
--- /dev/null
+++ b/doc/changelog.d/2061.fixed.rst
@@ -0,0 +1 @@
+Fix ``can.BitTiming`` rejecting bit rate prescaler values greater than 64 even when ``strict=False``.
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 23bebd12e..9dd55f8df 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -92,16 +92,16 @@ docs = [
 lint = [
     "pylint==4.0.*",
     "ruff==0.15.*",
-    "black==26.1.*",
-    "mypy==1.19.*",
+    "black==26.5.*",
+    "mypy==2.1.*",
 ]
 test = [
     "pytest==9.0.*",
     "pytest-timeout==2.4.*",
     "pytest-modern==0.7.*;platform_system!='Windows'",
     "coveralls==4.1.*",
-    "pytest-cov==7.0.*",
-    "coverage==7.13.*",
+    "pytest-cov==7.1.*",
+    "coverage==7.14.*",
     "hypothesis==6.*",
     "parameterized==0.9.*",
 ]