diff --git a/.github/workflows/build-test-macos.yml b/.github/workflows/build-test-macos.yml
index 0082d86468..a5796dd342 100644
--- a/.github/workflows/build-test-macos.yml
+++ b/.github/workflows/build-test-macos.yml
@@ -15,6 +15,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
diff --git a/.github/workflows/build-test-rhel8.yml b/.github/workflows/build-test-rhel8.yml
index ce3e311ddc..20fb2b5c0f 100644
--- a/.github/workflows/build-test-rhel8.yml
+++ b/.github/workflows/build-test-rhel8.yml
@@ -15,6 +15,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   Framework:
diff --git a/.github/workflows/build-test-rpi.yml b/.github/workflows/build-test-rpi.yml
index 8bf4e079cd..4a81164df2 100644
--- a/.github/workflows/build-test-rpi.yml
+++ b/.github/workflows/build-test-rpi.yml
@@ -15,6 +15,11 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
+
 env:
   RPI_TOOLCHAIN_DIR: /tmp/rpi-toolchain
   DICTIONARY_PATH: build-artifacts/raspberrypi/RPI/dict/RPITopologyDictionary.json
diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 04c115222c..16fc6bdd97 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -15,6 +15,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
diff --git a/.github/workflows/cmake-test.yml b/.github/workflows/cmake-test.yml
index 4c37026a91..06c4736756 100644
--- a/.github/workflows/cmake-test.yml
+++ b/.github/workflows/cmake-test.yml
@@ -13,7 +13,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
-
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
diff --git a/.github/workflows/codeql-jpl-standard.yml b/.github/workflows/codeql-jpl-standard.yml
index 406d8d8248..599ef9dbe6 100644
--- a/.github/workflows/codeql-jpl-standard.yml
+++ b/.github/workflows/codeql-jpl-standard.yml
@@ -14,6 +14,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   analyze:
diff --git a/.github/workflows/codeql-security-scan.yml b/.github/workflows/codeql-security-scan.yml
index f0bff24226..795a4ac6c9 100644
--- a/.github/workflows/codeql-security-scan.yml
+++ b/.github/workflows/codeql-security-scan.yml
@@ -14,6 +14,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   analyze:
diff --git a/.github/workflows/cppcheck-scan.yml b/.github/workflows/cppcheck-scan.yml
index 2db17301b1..68f75e61d2 100644
--- a/.github/workflows/cppcheck-scan.yml
+++ b/.github/workflows/cppcheck-scan.yml
@@ -12,6 +12,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   cppcheck:
diff --git a/.github/workflows/cpplint-scan.yml b/.github/workflows/cpplint-scan.yml
index 13f949417e..d543bcd9c2 100644
--- a/.github/workflows/cpplint-scan.yml
+++ b/.github/workflows/cpplint-scan.yml
@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   cpplint:
diff --git a/.github/workflows/ext-aarch64-linux-led-blinker.yml b/.github/workflows/ext-aarch64-linux-led-blinker.yml
index 4bfb9cc5cc..0ede8afc2c 100644
--- a/.github/workflows/ext-aarch64-linux-led-blinker.yml
+++ b/.github/workflows/ext-aarch64-linux-led-blinker.yml
@@ -14,6 +14,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 env:
   AARCH64_TOOLCHAIN_DIR: /tmp/aarch64-toolchain
diff --git a/.github/workflows/ext-build-examples-repo.yml b/.github/workflows/ext-build-examples-repo.yml
index e1a8f14daf..8038323309 100644
--- a/.github/workflows/ext-build-examples-repo.yml
+++ b/.github/workflows/ext-build-examples-repo.yml
@@ -14,6 +14,10 @@ on:
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
       - '.gitignore'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   get-branch:
diff --git a/.github/workflows/ext-build-hello-world.yml b/.github/workflows/ext-build-hello-world.yml
index 488ec174fb..54cea91f9a 100644
--- a/.github/workflows/ext-build-hello-world.yml
+++ b/.github/workflows/ext-build-hello-world.yml
@@ -13,6 +13,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   get-branch:
diff --git a/.github/workflows/ext-build-led-blinker.yml b/.github/workflows/ext-build-led-blinker.yml
index 507c348e12..e75fc297d0 100644
--- a/.github/workflows/ext-build-led-blinker.yml
+++ b/.github/workflows/ext-build-led-blinker.yml
@@ -13,6 +13,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   get-branch:
diff --git a/.github/workflows/ext-build-math-comp.yml b/.github/workflows/ext-build-math-comp.yml
index 2c021e8302..e4f5feed1b 100644
--- a/.github/workflows/ext-build-math-comp.yml
+++ b/.github/workflows/ext-build-math-comp.yml
@@ -13,6 +13,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   get-branch:
diff --git a/.github/workflows/ext-cookiecutters-test.yml b/.github/workflows/ext-cookiecutters-test.yml
index fdd559070f..8489754f14 100644
--- a/.github/workflows/ext-cookiecutters-test.yml
+++ b/.github/workflows/ext-cookiecutters-test.yml
@@ -11,6 +11,10 @@ on:
      - '**.md'
      - '.github/actions/spelling/**'
      - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 
 
diff --git a/.github/workflows/ext-raspberry-led-blinker.yml b/.github/workflows/ext-raspberry-led-blinker.yml
index 0bb527acae..6d1cfc8b61 100644
--- a/.github/workflows/ext-raspberry-led-blinker.yml
+++ b/.github/workflows/ext-raspberry-led-blinker.yml
@@ -14,6 +14,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 env:
   RPI_TOOLCHAIN_DIR: /tmp/rpi-toolchain
diff --git a/.github/workflows/ext-raspberry-system-reference.yml b/.github/workflows/ext-raspberry-system-reference.yml
index b0d0fe425f..12283af5ee 100644
--- a/.github/workflows/ext-raspberry-system-reference.yml
+++ b/.github/workflows/ext-raspberry-system-reference.yml
@@ -13,6 +13,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 env:
   RPI_TOOLCHAIN_DIR: /tmp/rpi-toolchain
diff --git a/.github/workflows/fpp-tests.yml b/.github/workflows/fpp-tests.yml
index c1b443316d..2beb5cb571 100644
--- a/.github/workflows/fpp-tests.yml
+++ b/.github/workflows/fpp-tests.yml
@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   fpptest:
diff --git a/.github/workflows/fpp-to-json.yml b/.github/workflows/fpp-to-json.yml
index f8cd078ef0..b4882f19de 100644
--- a/.github/workflows/fpp-to-json.yml
+++ b/.github/workflows/fpp-to-json.yml
@@ -11,6 +11,10 @@ on:
       - '**.md'
       - '.github/actions/spelling/**'
       - '.github/ISSUE_TEMPLATE/**'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   fpp-to-json-ref:
diff --git a/.github/workflows/markdown-link-check.yml b/.github/workflows/markdown-link-check.yml
index 75d82999f1..8fcc019b9e 100644
--- a/.github/workflows/markdown-link-check.yml
+++ b/.github/workflows/markdown-link-check.yml
@@ -5,6 +5,10 @@ on:
     branches: [devel, docs/new-website]
   pull_request:
     branches: [devel]
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   markdown-link-check:
diff --git a/.github/workflows/pip-check.yml b/.github/workflows/pip-check.yml
index 81d6d1e06e..17bbd6e933 100644
--- a/.github/workflows/pip-check.yml
+++ b/.github/workflows/pip-check.yml
@@ -10,6 +10,10 @@ on:
   pull_request:
     paths:
       - 'requirements.txt'
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   pip-install:
diff --git a/.github/workflows/python-format.yml b/.github/workflows/python-format.yml
index fe076f6dd3..6e146429a5 100644
--- a/.github/workflows/python-format.yml
+++ b/.github/workflows/python-format.yml
@@ -6,6 +6,10 @@ on:
   pull_request:
     # The branches below must be a subset of the branches above
     branches: [ devel, release/** ]
+# Cancel in-progress runs if a newer run is started on a given PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ !contains(github.ref, 'devel') && !contains(github.ref, 'release/')}}
 
 jobs:
   format: