diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 30c0981..03a0694 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,7 +41,7 @@ jobs:
     strategy:
       matrix:
         build-os: [macos-14, macos-12]
-        openfoam-version: [2312, 2306]
+        openfoam-version: [2406, 2312]
       fail-fast: false
     uses: ./.github/workflows/build-test.yml
     with:
diff --git a/Makefile b/Makefile
index d17fe1d..40cb3aa 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 # Build configuration
 SHELL = /bin/bash
-OPENFOAM_VERSION = 2312
+OPENFOAM_VERSION = 2406
 APP_NAME = OpenFOAM-v$(OPENFOAM_VERSION)
 
 ifeq ($(OPENFOAM_VERSION),2112)
diff --git a/README.md b/README.md
index 3f1f9f1..1acdc1f 100644
--- a/README.md
+++ b/README.md
@@ -29,25 +29,25 @@
 
 * Or, choose the OpenFOAM version(s) you want:
 
-    * **OpenFOAM v2312**
+    * **OpenFOAM v2406**
 
         * Install with [Homebrew](https://brew.sh):
 
             ```sh
-            brew install --no-quarantine gerlero/openfoam/openfoam@2312
+            brew install --no-quarantine gerlero/openfoam/openfoam@2406
             ```
 
-        * Manual download: [⬇️ Apple silicon](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2312-app-arm64.zip) | [⬇️ Intel](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2312-app-x86_64.zip)
+        * Manual download: [⬇️ Apple silicon](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2406-app-arm64.zip) | [⬇️ Intel](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2406-app-x86_64.zip)
 
-    * **OpenFOAM v2306**
+    * **OpenFOAM v2312**
 
         * Install with [Homebrew](https://brew.sh):
 
             ```sh
-            brew install --no-quarantine gerlero/openfoam/openfoam@2306
+            brew install --no-quarantine gerlero/openfoam/openfoam@2312
             ```
 
-        * Manual download: [⬇️ Apple silicon](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2306-app-arm64.zip) | [⬇️ Intel](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2306-app-x86_64.zip)
+        * Manual download: [⬇️ Apple silicon](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2312-app-arm64.zip) | [⬇️ Intel](https://github.com/gerlero/openfoam-app/releases/latest/download/openfoam2312-app-x86_64.zip)
 
 * _Need an older version of OpenFOAM? [See here](#can-i-get-an-older-version-of-openfoam)_
 
@@ -132,6 +132,11 @@ If you need an older version of OpenFOAM, you can:
 
 * Use an older release of **OpenFOAM.app** (note that these apps are no longer updated):
 
+    * [**OpenFOAM-v2306.app** 1.13.1](https://github.com/gerlero/openfoam-app/releases/tag/v1.13.1)
+        * Homebrew: `brew install --no-quarantine gerlero/openfoam/openfoam@2212`
+        * [⬇️ Apple silicon](https://github.com/gerlero/openfoam-app/releases/download/v1.13.1/openfoam2306-app-arm64.zip): tested with macOS 14 Sonoma
+        * [⬇️ Intel](https://github.com/gerlero/openfoam-app/releases/download/v1.13.1/openfoam2306-app-x86_64.zip): tested with macOS 12 Monterey through macOS 14 Sonoma
+
     * [**OpenFOAM-v2212.app** 1.11.1](https://github.com/gerlero/openfoam-app/releases/tag/v1.11.1)
         * Homebrew: `brew install --no-quarantine gerlero/openfoam/openfoam@2212`
         * [⬇️ Apple silicon](https://github.com/gerlero/openfoam-app/releases/download/v1.11.1/openfoam2212-app-arm64.zip): tested with macOS 14 Sonoma
diff --git a/sources/OpenFOAM-v2406.tgz.sha256 b/sources/OpenFOAM-v2406.tgz.sha256
new file mode 100644
index 0000000..b505dfd
--- /dev/null
+++ b/sources/OpenFOAM-v2406.tgz.sha256
@@ -0,0 +1 @@
+8d1450fb89eec1e7cecc55c3bb7bc486ccbf63d069379d1d5d7518fa16a4686a  sources/OpenFOAM-v2406.tgz
diff --git a/tests/test_regression.py b/tests/test_regression.py
index e49a8cc..a02f893 100644
--- a/tests/test_regression.py
+++ b/tests/test_regression.py
@@ -16,5 +16,6 @@ async def test_step(step):
     await step.run()
     assert "FOAM Warning" not in (step.path / "log.simpleFoam").read_text()
 
+@pytest.mark.skipif(int(os.environ["FOAM_API"]) > 2312, reason="cartesianMesh removed from default installation")
 def test_cartesian(): # https://github.com/gerlero/openfoam-app/issues/88
     subprocess.run(["cartesianMesh", "-help"], check=True)