From 789e554bd478660861fe18f9e0a4d4d346f8da69 Mon Sep 17 00:00:00 2001
From: Jordan Bradford <36420801+jrdnbradford@users.noreply.github.com>
Date: Thu, 11 Jul 2024 21:24:05 -0400
Subject: [PATCH] Update `R-CMD` checks

---
 .github/workflows/R-CMD-check.yaml | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index de775c3..5f61f86 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -12,17 +12,32 @@ permissions: read-all
 
 jobs:
   R-CMD-check:
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.config.os }}
+
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+
+    strategy:
+      fail-fast: false
+      matrix:
+        config:
+          - {os: macos-latest,   r: 'release'}
+          - {os: windows-latest, r: 'release'}
+          - {os: ubuntu-latest,  r: 'devel',    http-user-agent: 'release'}
+          - {os: ubuntu-latest,  r: 'release'}
+          - {os: ubuntu-latest,  r: 'oldrel-1'}
+
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       R_KEEP_PKG_SOURCE: yes
+
     steps:
       - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-r@v2
         with:
+          r-version: ${{ matrix.config.r }}
+          http-user-agent: ${{ matrix.config.http-user-agent }}
           use-public-rspm: true
-          r-version: 'renv'
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with: