diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index 48112e66..aa41c589 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 env:
   GO_VER: 1.19.6
   NODE_VER: 16.x
diff --git a/.github/workflows/rest-sample.yaml b/.github/workflows/rest-sample.yaml
index f2cae6eb..3a8e69f3 100644
--- a/.github/workflows/rest-sample.yaml
+++ b/.github/workflows/rest-sample.yaml
@@ -16,6 +16,10 @@ on:
     branches: [ "main", "release-2.5" ]
     paths: [ "asset-transfer-basic/rest-api-typescript/**" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   test-sample:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/test-fsat.yaml b/.github/workflows/test-fsat.yaml
index 60ccef46..b18ae023 100644
--- a/.github/workflows/test-fsat.yaml
+++ b/.github/workflows/test-fsat.yaml
@@ -8,6 +8,10 @@ on:
       - "main"
       - "release-2.5"
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   ansible:
     runs-on: ubuntu-20.04
@@ -53,5 +57,3 @@ jobs:
         uses: ./.github/actions/fsat-setup
       - run: just test-console
         working-directory: full-stack-asset-transfer-guide
-
-
diff --git a/.github/workflows/test-network-basic.yaml b/.github/workflows/test-network-basic.yaml
index 72b7c1db..b61ac685 100644
--- a/.github/workflows/test-network-basic.yaml
+++ b/.github/workflows/test-network-basic.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   basic:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/test-network-events.yaml b/.github/workflows/test-network-events.yaml
index 4a6ebd99..083ef087 100644
--- a/.github/workflows/test-network-events.yaml
+++ b/.github/workflows/test-network-events.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   events:
     runs-on: ubuntu-20.04
@@ -34,4 +38,3 @@ jobs:
         env:
           CHAINCODE_NAME: ${{ matrix.chaincode-name }}
           CHAINCODE_LANGUAGE: ${{ matrix.chaincode-language }}
-
diff --git a/.github/workflows/test-network-gateway.yaml b/.github/workflows/test-network-gateway.yaml
index ce49ae68..952595bd 100644
--- a/.github/workflows/test-network-gateway.yaml
+++ b/.github/workflows/test-network-gateway.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   gateway:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/test-network-hsm.yaml b/.github/workflows/test-network-hsm.yaml
index 189a77a1..dd85fca6 100644
--- a/.github/workflows/test-network-hsm.yaml
+++ b/.github/workflows/test-network-hsm.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   hsm:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/test-network-k8s.yaml b/.github/workflows/test-network-k8s.yaml
index 7898e820..f26762b5 100644
--- a/.github/workflows/test-network-k8s.yaml
+++ b/.github/workflows/test-network-k8s.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   ccaas-java:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/test-network-ledger.yaml b/.github/workflows/test-network-ledger.yaml
index 5bc6669b..af0df6e6 100644
--- a/.github/workflows/test-network-ledger.yaml
+++ b/.github/workflows/test-network-ledger.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   basic:
     runs-on: ubuntu-20.04
@@ -34,4 +38,3 @@ jobs:
         env:
           CHAINCODE_NAME: ${{ matrix.chaincode-name }}
           CHAINCODE_LANGUAGE: ${{ matrix.chaincode-language }}
-
diff --git a/.github/workflows/test-network-off-chain.yaml b/.github/workflows/test-network-off-chain.yaml
index 1e5840d4..d18495c2 100644
--- a/.github/workflows/test-network-off-chain.yaml
+++ b/.github/workflows/test-network-off-chain.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   off-chain:
     runs-on: ubuntu-20.04
diff --git a/.github/workflows/test-network-private.yaml b/.github/workflows/test-network-private.yaml
index 36ec02de..108cf2ec 100644
--- a/.github/workflows/test-network-private.yaml
+++ b/.github/workflows/test-network-private.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   private:
     runs-on: ubuntu-20.04
@@ -33,4 +37,3 @@ jobs:
         env:
           CHAINCODE_NAME: ${{ matrix.chaincode-name }}
           CHAINCODE_LANGUAGE: ${{ matrix.chaincode-language }}
-
diff --git a/.github/workflows/test-network-sbe.yaml b/.github/workflows/test-network-sbe.yaml
index 51a12694..bb4bd617 100644
--- a/.github/workflows/test-network-sbe.yaml
+++ b/.github/workflows/test-network-sbe.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   SBE:
     runs-on: ubuntu-20.04
@@ -34,4 +38,3 @@ jobs:
         env:
           CHAINCODE_NAME: ${{ matrix.chaincode-name }}
           CHAINCODE_LANGUAGE: ${{ matrix.chaincode-language }}
-
diff --git a/.github/workflows/test-network-secured.yaml b/.github/workflows/test-network-secured.yaml
index df075158..b3ab4eb4 100644
--- a/.github/workflows/test-network-secured.yaml
+++ b/.github/workflows/test-network-secured.yaml
@@ -11,6 +11,10 @@ on:
   pull_request:
     branches: [ "main", "release-2.5" ]
 
+concurrency:
+  group: ${{ github.head_ref }}
+  cancel-in-progress: true
+
 jobs:
   secured:
     runs-on: ubuntu-20.04
@@ -33,4 +37,3 @@ jobs:
         env:
           CHAINCODE_NAME: ${{ matrix.chaincode-name }}
           CHAINCODE_LANGUAGE: ${{ matrix.chaincode-language }}
-