From 1cba9791a0ad4418014dde31bc66071171e6b73f Mon Sep 17 00:00:00 2001
From: VisruthSK <67435125+VisruthSK@users.noreply.github.com>
Date: Sun, 15 Feb 2026 12:40:56 -0800
Subject: [PATCH] Swap to concurrency groups instead of a step

---
 .github/workflows/R-CMD-check-wsl.yaml | 9 ++++-----
 .github/workflows/R-CMD-check.yaml     | 9 ++++-----
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/R-CMD-check-wsl.yaml b/.github/workflows/R-CMD-check-wsl.yaml
index e8b1616c..d32cec8d 100644
--- a/.github/workflows/R-CMD-check-wsl.yaml
+++ b/.github/workflows/R-CMD-check-wsl.yaml
@@ -12,6 +12,10 @@ name: Unit tests - WSL Backend
     branches:
       - master
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   WSL-R-CMD-check:
     if: "! contains(github.event.head_commit.message, '[ci skip]')"
@@ -31,11 +35,6 @@ jobs:
           echo "CMDSTAN_PATH=${HOME}/.cmdstan" >> $GITHUB_ENV
         shell: bash
 
-      - uses: n1hility/cancel-previous-runs@v3
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-        if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/master'"
-
       - uses: actions/checkout@v6
 
       - uses: r-lib/actions/setup-r@v2
diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index aeedc01d..0cffb6f8 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -18,6 +18,10 @@ name: Unit tests
         required: false
         default: ''
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   R-CMD-check:
     if: "! contains(github.event.head_commit.message, '[ci skip]')"
@@ -51,11 +55,6 @@ jobs:
           echo "CMDSTAN_PATH=${HOME}/.cmdstan" >> $GITHUB_ENV
         shell: bash
 
-      - uses: n1hility/cancel-previous-runs@v3
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
-        if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/master'"
-
       - uses: actions/checkout@v6
 
       - uses: r-lib/actions/setup-r@v2