diff --git a/.github/workflows/CI-windows.yml b/.github/workflows/CI-windows.yml
index bdd6ff57e0d..d5d4b5e4992 100644
--- a/.github/workflows/CI-windows.yml
+++ b/.github/workflows/CI-windows.yml
@@ -91,11 +91,11 @@ jobs:
         with:
           persist-credentials: false
 
-      - name: Set up Python 3.13
+      - name: Set up Python
         if: matrix.config == 'release'
         uses: actions/setup-python@v5
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           check-latest: true
 
       - name: Set up Visual Studio environment
diff --git a/.github/workflows/asan.yml b/.github/workflows/asan.yml
index 5e3a71914b7..cbca3cacabc 100644
--- a/.github/workflows/asan.yml
+++ b/.github/workflows/asan.yml
@@ -36,10 +36,10 @@ jobs:
         with:
           key: ${{ github.workflow }}-${{ github.job }}-${{ matrix.os }}
 
-      - name: Set up Python 3.13
+      - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           check-latest: true
 
       - name: Install missing software on ubuntu
diff --git a/.github/workflows/scriptcheck.yml b/.github/workflows/scriptcheck.yml
index 729879cc96c..66e54ddff98 100644
--- a/.github/workflows/scriptcheck.yml
+++ b/.github/workflows/scriptcheck.yml
@@ -48,9 +48,9 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, '3.10', '3.11', '3.12', '3.13']
+        python-version: [3.7, 3.8, 3.9, '3.10', '3.11', '3.12', '3.13', '3.14']
         include:
-          - python-version: '3.13'
+          - python-version: '3.14'
             python-latest: true
 
       fail-fast: false
diff --git a/.github/workflows/tsan.yml b/.github/workflows/tsan.yml
index 378fbfc41a1..6742f8fa957 100644
--- a/.github/workflows/tsan.yml
+++ b/.github/workflows/tsan.yml
@@ -36,10 +36,10 @@ jobs:
         with:
           key: ${{ github.workflow }}-${{ github.job }}-${{ matrix.os }}
 
-      - name: Set up Python 3.13
+      - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           check-latest: true
 
       - name: Install missing software on ubuntu
diff --git a/.github/workflows/ubsan.yml b/.github/workflows/ubsan.yml
index 9b2fa163193..7a7755d091a 100644
--- a/.github/workflows/ubsan.yml
+++ b/.github/workflows/ubsan.yml
@@ -36,10 +36,10 @@ jobs:
         with:
           key: ${{ github.workflow }}-${{ github.job }}-${{ matrix.os }}
 
-      - name: Set up Python 3.13
+      - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: '3.13'
+          python-version: '3.14'
           check-latest: true
 
       - name: Install missing software on ubuntu
diff --git a/addons/misra.py b/addons/misra.py
index ca8eb2bfb69..cea5596d47d 100755
--- a/addons/misra.py
+++ b/addons/misra.py
@@ -22,7 +22,6 @@
 import re
 import os
 import argparse
-import codecs
 import string
 import copy
 
@@ -4525,7 +4524,7 @@ def loadRuleTexts(self, filename):
         encodings = ['ascii', 'utf-8', 'windows-1250', 'windows-1252']
         for e in encodings:
             try:
-                file_stream = codecs.open(filename, 'r', encoding=e)
+                file_stream = open(filename, 'r', encoding=e)
                 file_stream.readlines()
                 file_stream.seek(0)
             except UnicodeDecodeError:
diff --git a/tools/release-set-version.py b/tools/release-set-version.py
index 42462545698..f5052cc9035 100644
--- a/tools/release-set-version.py
+++ b/tools/release-set-version.py
@@ -81,7 +81,7 @@ def check_sed(args):
     check_sed(['-i', '-r', f's/<[?]define ProductName[ ]*=.*/<?define ProductName = "Cppcheck $(var.Platform) {cppcheck_version_string}" ?>/', 'win_installer/productInfo.wxi'])
     check_sed(['-i', '-r', f's/<[?]define ProductVersion[ ]*=.*/<?define ProductVersion = "{new_version}" ?>/', 'win_installer/productInfo.wxi'])
     for g in glob.glob('man/*.md'):
-        check_sed(['-i', '-r', f's/subtitle: Version 2\.[0-9].*/subtitle: Version {cppcheck_version_string}/', g])
+        check_sed(['-i', '-r', f's/subtitle: Version 2\\.[0-9].*/subtitle: Version {cppcheck_version_string}/', g])
     print('Versions have been changed.')
     print('')
     print('Please double check these results below:')