diff --git a/.github/workflows/test_branches.yml b/.github/workflows/test_branches.yml
index ca9834af901..395afced061 100644
--- a/.github/workflows/test_branches.yml
+++ b/.github/workflows/test_branches.yml
@@ -45,20 +45,6 @@ jobs:
           TARGET: osx
           PYENV: pip
 
-        - os: windows-latest
-          python: 3.7
-          TARGET: win
-          PYENV: conda
-          PACKAGES: glpk
-
-        - os: ubuntu-latest
-          python: 3.9
-          other: /conda
-          skip_doctest: 1
-          TARGET: linux
-          PYENV: conda
-          PACKAGES:
-
         - os: ubuntu-latest
           python: 3.8
           other: /mpi
@@ -68,29 +54,18 @@ jobs:
           PYENV: conda
           PACKAGES: mpi4py openmpi
 
-        - os: ubuntu-latest
-          python: 3.7
-          other: /slim
-          slim: 1
-          skip_doctest: 1
-          TARGET: linux
-          PYENV: pip
-
-        - os: ubuntu-latest
+        - os: windows-latest
           python: 3.8
-          other: /cython
-          setup_options: --with-cython
-          skip_doctest: 1
-          TARGET: linux
-          PYENV: pip
-          PACKAGES: cython
+          TARGET: win
+          PYENV: conda
+          PACKAGES: glpk
 
         - os: windows-latest
-          python: 3.8
-          other: /pip
-          skip_doctest: 1
+          python: 3.10
           TARGET: win
-          PYENV: pip
+          PYENV: conda
+          PACKAGES: glpk
+
 
     steps:
     - name: Checkout Pyomo source
@@ -264,6 +239,8 @@ jobs:
         conda config --show-sources
         conda config --show channels
         conda list --show-channel-urls
+        which python
+        python --version
         # Note: some pypi packages are not available through conda
         PYOMO_DEPENDENCIES=`python setup.py dependencies \
             --extras "$EXTRAS" | tail -1`
@@ -293,6 +270,8 @@ jobs:
             done
             # TODO: This is a hack to stop test_qt.py from running until we
             # can better troubleshoot why it fails on GHA
+            which python
+            python --version
             for QTPACKAGE in qt pyqt; do
                 conda remove $QTPACKAGE || echo "$QTPACKAGE not in this environment"
             done