diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 135071cd..1c9e4239 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -13,10 +13,14 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ "main" ]
+    branches:
+      - main
+      - 'releases/**'
   pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ "main" ]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
 
 jobs:
   analyze:
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 760fb92e..db0658bf 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -7,6 +7,10 @@
 name: 'Dependency Review'
 on: [pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: read
 
diff --git a/.github/workflows/do-not-commit-config-yaml.yml b/.github/workflows/do-not-commit-config-yaml.yml
index 7c097394..8d7ea637 100644
--- a/.github/workflows/do-not-commit-config-yaml.yml
+++ b/.github/workflows/do-not-commit-config-yaml.yml
@@ -5,6 +5,10 @@ on:
     paths:
       - 'config.yaml'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   check-config:
     name: Check config.yaml
diff --git a/.github/workflows/generate-linux-packages.yml b/.github/workflows/generate-linux-packages.yml
index d2caf29c..9c4ebb47 100644
--- a/.github/workflows/generate-linux-packages.yml
+++ b/.github/workflows/generate-linux-packages.yml
@@ -4,6 +4,10 @@ on:
   release:
     types: [ published ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: write
 
diff --git a/.github/workflows/generate-windows-packages-debug.yml b/.github/workflows/generate-windows-packages-debug.yml
index 563548e1..13511059 100644
--- a/.github/workflows/generate-windows-packages-debug.yml
+++ b/.github/workflows/generate-windows-packages-debug.yml
@@ -4,6 +4,10 @@ on:
   release:
     types: [ published ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: write
 
diff --git a/.github/workflows/generate-windows-packages.yml b/.github/workflows/generate-windows-packages.yml
index c37eb1aa..61d081bc 100644
--- a/.github/workflows/generate-windows-packages.yml
+++ b/.github/workflows/generate-windows-packages.yml
@@ -4,6 +4,10 @@ on:
   release:
     types: [ published ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 permissions:
   contents: write
 
diff --git a/.github/workflows/lint-flake8.yml b/.github/workflows/lint-flake8.yml
index 0cd62f2f..363d1e35 100644
--- a/.github/workflows/lint-flake8.yml
+++ b/.github/workflows/lint-flake8.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint-flake8:
     name: Lint with flake8
diff --git a/.github/workflows/simple-program-linux.yml b/.github/workflows/simple-program-linux.yml
index 2017f9ce..cef20978 100644
--- a/.github/workflows/simple-program-linux.yml
+++ b/.github/workflows/simple-program-linux.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   simple-program:
     name: Simple program (Linux)
diff --git a/.github/workflows/simple-program-macos.yml b/.github/workflows/simple-program-macos.yml
index fea223b4..637267a3 100644
--- a/.github/workflows/simple-program-macos.yml
+++ b/.github/workflows/simple-program-macos.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   simple-program:
     name: Simple program (MacOS)
diff --git a/.github/workflows/simple-program-windows.yml b/.github/workflows/simple-program-windows.yml
index ef65da5d..b3f1a451 100644
--- a/.github/workflows/simple-program-windows.yml
+++ b/.github/workflows/simple-program-windows.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   simple-program:
     name: Simple program (Windows)
diff --git a/.github/workflows/system-monitor-linux.yml b/.github/workflows/system-monitor-linux.yml
index a9d89c06..37901067 100644
--- a/.github/workflows/system-monitor-linux.yml
+++ b/.github/workflows/system-monitor-linux.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   system-monitor:
     name: System monitor (Linux)
diff --git a/.github/workflows/system-monitor-macos.yml b/.github/workflows/system-monitor-macos.yml
index ea011031..77ee1969 100644
--- a/.github/workflows/system-monitor-macos.yml
+++ b/.github/workflows/system-monitor-macos.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   system-monitor:
     name: System monitor (MacOS)
diff --git a/.github/workflows/system-monitor-windows.yml b/.github/workflows/system-monitor-windows.yml
index e793195c..2700563c 100644
--- a/.github/workflows/system-monitor-windows.yml
+++ b/.github/workflows/system-monitor-windows.yml
@@ -7,6 +7,10 @@ on:
       - 'releases/**'
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   system-monitor:
     name: System monitor (Windows)
diff --git a/.github/workflows/themes-screenshot-on-pr.yml b/.github/workflows/themes-screenshot-on-pr.yml
index f4d53050..b1b32eba 100644
--- a/.github/workflows/themes-screenshot-on-pr.yml
+++ b/.github/workflows/themes-screenshot-on-pr.yml
@@ -2,6 +2,13 @@ name: System monitor - themes screenshot (on PR)
 
 on:
   pull_request:
+    paths:
+      - 'library/**'
+      - 'res/themes/**'
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
 
 jobs:
   system-monitor-theme-screenshot:
diff --git a/.github/workflows/themes-screenshot-on-push.yml b/.github/workflows/themes-screenshot-on-push.yml
index a9857cd2..b5c26b8c 100644
--- a/.github/workflows/themes-screenshot-on-push.yml
+++ b/.github/workflows/themes-screenshot-on-push.yml
@@ -6,6 +6,10 @@ on:
       - main
       - 'releases/**'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name }}-${{ github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   system-monitor-theme-screenshot:
     name: Update themes screenshot and generate list