From de7d21438f8daf49c829616b9ccdb39a3a30917d Mon Sep 17 00:00:00 2001
From: Tim Holy <tim.holy@gmail.com>
Date: Thu, 25 Jun 2026 03:50:26 -0500
Subject: [PATCH 1/3] CI: fix macOS arch for Apple Silicon runners

macOS-latest runners are Apple Silicon; setup-julia v3 errors when
`arch: x64` is requested there. Configure each matrix to use the
correct native architecture and bump setup-julia to v3.
---
 .github/workflows/ci.yml | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 72657b5..52df1bf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,17 +22,14 @@ jobs:
           - ubuntu-latest
           - macOS-latest
           - windows-latest
-        arch:
-          - x64
         nthreads:
           - 1
           - 2
     steps:
       - uses: actions/checkout@v4
-      - uses: julia-actions/setup-julia@v2
+      - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.version }}
-          arch: ${{ matrix.arch }}
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1

From fc11935e88a34785c5549c028477ffa28450ae43 Mon Sep 17 00:00:00 2001
From: Tim Holy <tim.holy@gmail.com>
Date: Thu, 25 Jun 2026 04:30:37 -0500
Subject: [PATCH 2/3] CI: fix macOS arch for Apple Silicon runners

macOS-latest runners are Apple Silicon; setup-julia v3 errors when
`arch: x64` is requested there. Configure each matrix to use the
correct native architecture and bump setup-julia to v3.
---
 .github/workflows/ci.yml | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 52df1bf..fc94d4e 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,13 +30,13 @@ jobs:
       - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.version }}
-      - uses: julia-actions/cache@v2
+      - uses: julia-actions/cache@v4
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
         env:
           JULIA_NUM_THREADS: ${{ matrix.nthreads }}
         timeout-minutes: 20
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v4
+      - uses: codecov/codecov-action@v5
         with:
-          file: lcov.info
+          files: lcov.info

From 9b3648706ecd9d2fa85cd65bac7b4a7ef6cf41db Mon Sep 17 00:00:00 2001
From: Tim Holy <tim.holy@gmail.com>
Date: Thu, 25 Jun 2026 06:37:49 -0500
Subject: [PATCH 3/3] Apply suggestion from @timholy

---
 .github/workflows/ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fc94d4e..a7d1d3d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
       - uses: julia-actions/setup-julia@v3
         with:
           version: ${{ matrix.version }}
-      - uses: julia-actions/cache@v4
+      - uses: julia-actions/cache@v3
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
         env: