diff --git a/.github/workflows/R-CMD-check.yaml b/.github/workflows/R-CMD-check.yaml
index 2f3f8f4..9de2e67 100644
--- a/.github/workflows/R-CMD-check.yaml
+++ b/.github/workflows/R-CMD-check.yaml
@@ -5,22 +5,28 @@ on:
     branches: [main, master]
   pull_request:
     branches: [main, master]
-  workflow_dispatch:
+  workflow_dispatch: {}
 
 name: R-CMD-check
 
 jobs:
   R-CMD-check:
     runs-on: macos-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        R: [ 'release', 'next' ]
     env:
       GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
       R_KEEP_PKG_SOURCE: yes
+    name: R ${{ matrix.R }} sample
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: r-lib/actions/setup-r@v2
         with:
           use-public-rspm: true
+          r-version: ${{ matrix.R }}
 
       - uses: r-lib/actions/setup-r-dependencies@v2
         with:
diff --git a/NEWS.md b/NEWS.md
index a0a93a7..c202948 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -2,6 +2,12 @@
 
 ## Features
 
+- Updated to support R 4.4.0 on macOS.
+
+## Deployment
+
+- GitHub Actions now tests the package on `release` and `next` versions of 
+  macOS R's version.
 
 # macrtools 0.0.3
 
diff --git a/R/gfortran.R b/R/gfortran.R
index 3e096ef..d763b24 100644
--- a/R/gfortran.R
+++ b/R/gfortran.R
@@ -187,7 +187,7 @@ gfortran_install = function(password = getOption("macrtools.password"), verbose
 
     gfortran_status = FALSE
 
-    if(is_r_version("4.3")) {
+    if(is_r_version("4.3") || is_r_version("4.4")) {
         gfortran_status = install_gfortran_12_2_universal(
             password = entered_password_gfortran,
             verbose = verbose)
@@ -219,7 +219,7 @@ gfortran_install = function(password = getOption("macrtools.password"), verbose
         version_number = paste(R.version$major, R.version$minor, sep = ".")
         cat(
             paste0(
-            "The macrtools package supports gfortran installations for R 4.0.* - R 4.3.*.\nThe installed version of R (", version_number, ") is not yet supported!\n"
+            "The macrtools package supports gfortran installations for R 4.0.* - R 4.4.*.\nThe installed version of R (", version_number, ") is not yet supported!\n"
             )
         )
         return(invisible(FALSE))
@@ -320,7 +320,7 @@ gfortran_update = function(password = getOption("macrtools.password"), verbose =
     assert_mac()
     assert_aarch64()
     assert(is_gfortran_installed(), "On gfortran")
-    assert(is_r_version("4.2") || is_r_version("4.3"), "On R 4.2 or above")
+    assert(is_r_version("4.2") || is_r_version("4.3") || is_r_version("4.4"), "On R 4.2 or above")
 
     # Figure out installation directory
     install_dir = install_location()
diff --git a/R/installers.R b/R/installers.R
index 5fb2f59..28470ff 100644
--- a/R/installers.R
+++ b/R/installers.R
@@ -14,7 +14,7 @@ install_strip_level = function(arch = system_arch()) {
 }
 
 recipe_binary_install_strip_level = function(arch = system_arch()) {
-    if (is_r_version("4.3")) {
+    if (is_r_version("4.3") || is_r_version("4.4")) {
         switch(
             arch,
             "arm64" = 3,
@@ -42,7 +42,7 @@ install_location = function(arch = system_arch()) {
 }
 
 recipe_binary_install_location = function(arch = system_arch()) {
-    if (is_r_version("4.3")) {
+    if (is_r_version("4.3") || is_r_version("4.4")) {
         switch(
             arch,
             "arm64" = install_directory_arm64(),
@@ -58,7 +58,7 @@ recipe_binary_install_location = function(arch = system_arch()) {
 }
 
 gfortran_install_location = function(arch = system_arch()) {
-    if (is_r_version("4.3")) {
+    if (is_r_version("4.3") || is_r_version("4.4")) {
         "/opt"
     } else if (is_r_version("4.0") | is_r_version("4.1") | is_r_version("4.2")) {
         install_location()