diff --git a/.github/workflows/nompi4py.yml b/.github/workflows/nompi4py.yml
deleted file mode 100644
index 8918fac1..00000000
--- a/.github/workflows/nompi4py.yml
+++ /dev/null
@@ -1,37 +0,0 @@
-name: No mpi4py (Pyomo released)
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.8
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          pip install sphinx sphinx_rtd_theme cplex
-          pip install xpress pandas dill
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: PH EF tests
-        run: |
-          cd mpisppy/tests
-          python test_ef_ph.py
diff --git a/.github/workflows/runall.yml b/.github/workflows/runall.yml
deleted file mode 100644
index 5d203eca..00000000
--- a/.github/workflows/runall.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-name: test_runall (Pyomo released)
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.11
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py pandas setuptools
-          pip install pyomo sphinx sphinx_rtd_theme dill gridx-egret cplex pybind11
-          pip install xpress
-
-      - name: Build pyomo extensions
-        run: |
-          # we don't need it all; just APPSI's extensions
-          pyomo build-extensions || python -c "from pyomo.contrib.appsi.cmodel import cmodel_available; exit(0) if bool(cmodel_available) else exit(1)"
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: Test run_all nouc
-        run: |
-          cd examples
-          python run_all.py xpress_persistent --oversubscribe nouc
-
diff --git a/.github/workflows/schur_complement.yml b/.github/workflows/schur_complement.yml
deleted file mode 100644
index 8df9de5e..00000000
--- a/.github/workflows/schur_complement.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-# Test the SchurComplement interface
-
-name: schur-complement
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [3.8, 3.9]
-    steps:
-    - uses: actions/checkout@v1
-    - name: setup conda
-      uses: s-weigand/setup-conda@v1
-      with:
-        update-conda: true
-        python-version: ${{ matrix.python-version }}
-        conda-channels: anaconda, conda-forge
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install nose pybind11
-        conda install openmpi pymumps --no-update-deps
-        pip install mpi4py pandas
-        pip install git+https://github.com/pyutilib/pyutilib.git
-        git clone https://github.com/pyomo/pyomo.git
-        cd pyomo/
-        pip install -e .
-        pyomo download-extensions
-        pyomo build-extensions
-        cd ../
-        pip install git+https://github.com/parapint/parapint.git
-        pip install -e .
-    - name: Test with nose
-      run: |
-        nosetests -v mpisppy/tests/test_sc.py
-        mpirun -np 3 -oversubscribe nosetests mpisppy/tests/test_sc.py
diff --git a/.github/workflows/straight.yml b/.github/workflows/straight.yml
deleted file mode 100644
index 2818b876..00000000
--- a/.github/workflows/straight.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: straight (Pyomo released)
-
-# april 2023: matched the testaph.yml dependencies
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.9
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py pandas setuptools
-          pip install pyomo xpress cplex dill matplotlib
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: mpi tests
-        run: |
-          cd mpisppy/tests
-          python straight_tests.py
diff --git a/.github/workflows/testadmmWrapper.yml b/.github/workflows/testadmmWrapper.yml
deleted file mode 100644
index ff76bcd7..00000000
--- a/.github/workflows/testadmmWrapper.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-# aph (pyomo released)
-
-name: admmWrapper tests
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.9
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py pandas setuptools
-          pip install pyomo xpress cplex
-          pip install numpy
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run tests
-        timeout-minutes: 100
-        run: |
-          cd mpisppy/tests
-          # envall does nothing
-          python test_admmWrapper.py
-          python test_stoch_admmWrapper.py
diff --git a/.github/workflows/testaph.yml b/.github/workflows/testaph.yml
deleted file mode 100644
index 0a5e68e5..00000000
--- a/.github/workflows/testaph.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-# aph (pyomo released)
-
-name: aph tests
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.9
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py pandas setuptools
-          pip install pyomo xpress cplex
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run tests
-        timeout-minutes: 100
-        run: |
-          cd mpisppy/tests
-          # envall does nothing
-          python test_aph.py
diff --git a/.github/workflows/testbunpick.yml b/.github/workflows/testbunpick.yml
deleted file mode 100644
index dd4036a6..00000000
--- a/.github/workflows/testbunpick.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-# picked bundles (pyomo released)
-
-name: pickled bundles tests
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.8
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py "numpy<2" setuptools
-          pip install pyomo pandas xpress cplex scipy sympy dill PyYAML Pympler networkx pandas
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run pickled bundles tests
-        timeout-minutes: 10
-        run: |
-          cd mpisppy/tests
-          python test_pickle_bundle.py
diff --git a/.github/workflows/testconfint.yml b/.github/workflows/testconfint.yml
deleted file mode 100644
index c4ae0a1b..00000000
--- a/.github/workflows/testconfint.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-# confint (pyomo released)
-
-name: confidence intervals tests
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.8
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py "numpy<2" setuptools
-          pip install pyomo pandas xpress cplex scipy sympy dill
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run farmer tests
-        timeout-minutes: 10
-        run: |
-          cd mpisppy/tests
-          python test_conf_int_farmer.py
-
-      - name: run aircond tests
-        timeout-minutes: 10
-        run: |
-          cd mpisppy/tests
-          python test_conf_int_aircond.py
diff --git a/.github/workflows/testgeneric.yml b/.github/workflows/testgeneric.yml
deleted file mode 100644
index 0d0a070c..00000000
--- a/.github/workflows/testgeneric.yml
+++ /dev/null
@@ -1,45 +0,0 @@
-name: test_generic (Pyomo released)
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-    timeout-minutes: 15
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.11
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py pandas setuptools
-          pip install pyomo sphinx sphinx_rtd_theme dill gridx-egret cplex pybind11
-          pip install xpress
-
-      - name: Build pyomo extensions
-        run: |
-          # we don't need it all; just APPSI's extensions
-          pyomo build-extensions || python -c "from pyomo.contrib.appsi.cmodel import cmodel_available; exit(0) if bool(cmodel_available) else exit(1)"
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: Test test_generic nouc
-        run: |
-          cd examples
-          python generic_tester.py xpress_persistent --oversubscribe nouc
-
diff --git a/.github/workflows/testgradient.yml b/.github/workflows/testgradient.yml
deleted file mode 100644
index 018d185c..00000000
--- a/.github/workflows/testgradient.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-# gradient
-
-name: gradient and rho tests
-
-on:
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.9
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py "numpy<2" setuptools cmake
-          pip install pyomo pandas xpress cplex scipy sympy dill
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: Build Pyomo extensions
-        run: |
-          # some failures are expected, but this should succeed as long as pynumero is built correctly
-          pyomo build-extensions || python -c "from pyomo.contrib.pynumero.asl import AmplInterface; exit(0) if AmplInterface.available() else exit(1)"
-
-      - name: run farmer tests
-        timeout-minutes: 10
-        run: |
-          cd mpisppy/tests
-          python test_gradient_rho.py
-          python test_w_writer.py
diff --git a/.github/workflows/testheaders.yml b/.github/workflows/testheaders.yml
deleted file mode 100644
index 046125d1..00000000
--- a/.github/workflows/testheaders.yml
+++ /dev/null
@@ -1,38 +0,0 @@
-name: header test
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.8
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py "numpy<2" setuptools
-          pip install pyomo addheader pyyaml pytest
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run headers test
-        timeout-minutes: 10
-        run: |
-          cd mpisppy/tests
-          pytest test_headers.py
diff --git a/.github/workflows/testpysp.yml b/.github/workflows/testpysp.yml
deleted file mode 100644
index f0d64d2a..00000000
--- a/.github/workflows/testpysp.yml
+++ /dev/null
@@ -1,48 +0,0 @@
-# pysp interface (pyomo released)
-
-name: pysp tests
-
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.9
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py pandas setuptools pytest pyyaml networkx
-          pip install pyomo xpress cplex
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run pysp model tests
-        timeout-minutes: 100
-        run: |
-          cd mpisppy/tests
-          # envall does nothing
-          python test_pysp_model.py
-
-      - name: run pysp unit tests
-        timeout-minutes: 100
-        run: |
-          cd mpisppy/utils/pysp_model
-          pytest -v .
diff --git a/.github/workflows/testwithcylinders.yml b/.github/workflows/testwithcylinders.yml
deleted file mode 100644
index 36a4aa40..00000000
--- a/.github/workflows/testwithcylinders.yml
+++ /dev/null
@@ -1,41 +0,0 @@
-# tests with cylinders (pyomo released)
-
-name: tests on some cylinders
-
-on:
-  push:
-    branches: [ main ]
-  pull_request:
-    branches: [ main ]
-
-defaults:
-    run:
-        shell: bash -l {0}
-
-jobs:
-  build:
-
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: test_env
-          python-version: 3.8
-          auto-activate-base: false
-      - name: Install dependencies
-        run: |
-          conda install mpi4py "numpy<2" setuptools
-          pip install pyomo pandas xpress cplex scipy
-
-      - name: setup the program
-        run: |
-          pip install -e .
-
-      - name: run tests
-        timeout-minutes: 10
-        run: |
-          cd mpisppy/tests
-          mpiexec -np 2 python -m mpi4py test_with_cylinders.py          
-