diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
deleted file mode 100644
index 7ffa02e..0000000
--- a/.github/workflows/codespell.yml
+++ /dev/null
@@ -1,20 +0,0 @@
----
-name: codespell
-
-on:
-  push:
-    branches: [main]
-  pull_request:
-    branches: [main]
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.ref }}
-  cancel-in-progress: true
-
-jobs:
-  # Check for common misspellings
-  codespell:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - uses: codespell-project/actions-codespell@master
diff --git a/.github/workflows/matlab_test_and_coverage.yml b/.github/workflows/matlab_test_and_coverage.yml
index ef8c50c..7082fa8 100644
--- a/.github/workflows/matlab_test_and_coverage.yml
+++ b/.github/workflows/matlab_test_and_coverage.yml
@@ -12,7 +12,7 @@ name: 'MATLAB: test and coverage'
 
 on:
   push:
-    branches: [master, main, dev]
+    branches: [main]
   pull_request:
     branches: ['*']
 
@@ -21,8 +21,11 @@ jobs:
 
     strategy:
       matrix:
-        version: [R2021a, R2021b, R2022a, R2022b, R2023a]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest]
+        version: [R2021a, R2023b]
+        include:
+          - os: macos-latest
+            version: R2023b
       fail-fast: false  # Don't cancel all jobs if one fails
 
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/miss_hit.yml b/.github/workflows/miss_hit.yml
deleted file mode 100644
index 26cf78f..0000000
--- a/.github/workflows/miss_hit.yml
+++ /dev/null
@@ -1,46 +0,0 @@
----
-name: miss_hit
-
-on:
-  push:
-    branches:
-    - main
-    - dev
-    paths:
-    - '**.m'
-    - .github/workflows/miss_hit.yml
-  pull_request:
-    branches: ['*']
-    paths:
-    - '**.m'
-    - .github/workflows/miss_hit.yml
-jobs:
-
-  miss_hit:
-
-    runs-on: ubuntu-latest
-
-    strategy:
-      matrix:
-        command: [mh_style, mh_metric --ci && mh_lint]
-      fail-fast: true  # cancel all jobs if one fails
-
-    steps:
-
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 1
-
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: '3.11'
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip setuptools
-        pip3 install -r requirements.txt
-
-    - name: ${{ matrix.command }}
-      run: |
-        ${{ matrix.command }}
diff --git a/.github/workflows/octave_test_and_coverage.yml b/.github/workflows/octave_test_and_coverage.yml
index b604bff..0cd5728 100644
--- a/.github/workflows/octave_test_and_coverage.yml
+++ b/.github/workflows/octave_test_and_coverage.yml
@@ -3,7 +3,7 @@ name: 'Octave: test and coverage'
 
 on:
   push:
-    branches: [master, main, dev]
+    branches: [main]
   pull_request:
     branches: ['*']