diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ea4131354..175179cc7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,4 +1,4 @@
-name: Run all checks for pull requests
+name: Run all checks
 
 on:
   pull_request:
@@ -11,10 +11,24 @@ on:
         required: false
         default: ''
         type: string
+      use_lkg:
+        description: 'Whether to use the last known good versions of dependencies'
+        required: true
+        default: True
+        type: boolean
+  # nightly
+  schedule:
+    - cron: '0 0 * * *'
+
+# Only run once per PR, canceling any previous runs
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
 
 # Precompute the ref if the workflow was triggered by a workflow dispatch rather than copying this logic repeatedly
 env:
   ref: ${{ github.event_name == 'workflow_dispatch' && inputs.ref || null }}
+  use_lkg: ${{ (github.event_name == 'workflow_dispatch' && inputs.use_lkg || github.event_name == 'pull_request') || null }}
 
 jobs:
   eval: 
@@ -85,7 +99,7 @@ jobs:
     - uses: actions/setup-python@v4
       name: Setup Python
       with:
-        python-version: 3.9
+        python-version: '3.9'
     - run: python -m pip install --upgrade pip && pip install --upgrade setuptools
       name: Ensure latest pip and setuptools
     - run: 'pip install pycodestyle && pycodestyle econml'
@@ -103,11 +117,11 @@ jobs:
           extras: "[tf,plt]"
           pattern: "(?!CustomerScenarios)"
           install_graphviz: true
-          version: 3.8 # no supported version of tensorflow for 3.9
+          version: '3.8' # no supported version of tensorflow for 3.9
         - kind: "customer-scenarios"
           extras: "[plt,dowhy]"
           pattern: "CustomerScenarios"
-          version: 3.9
+          version: '3.9'
           install_graphviz: false
       fail-fast: false
     steps:
@@ -125,12 +139,22 @@ jobs:
       name: Install graphviz
       if: ${{ matrix.install_graphviz }}
     # Add verbose flag to pip installation if in debug mode
-    - run: pip install -e .${{ matrix.extras }} ${{ fromJSON('["","-v"]')[runner.debug] }}
+    - run: pip install -e .${{ matrix.extras }} ${{ fromJSON('["","-v"]')[runner.debug] }} ${{ env.use_lkg && '-r lkg-notebook.txt' }}
       name: Install econml
-    - run: pip install pytest pytest-runner coverage jupyter jupyter-client nbconvert nbformat seaborn xgboost tqdm
-      name: Install test and notebook requirements
-    - run: pip list
-      name: List installed packages
+    # Install notebook requirements (if not already done as part of lkg)
+    - run: pip install jupyter jupyter-client nbconvert nbformat seaborn xgboost tqdm
+      name: Install notebook requirements
+      if: ${{ !env.use_lkg }}
+    - run: pip freeze --exclude-editable > notebooks-${{ matrix.version }}-${{ matrix.kind }}-requirements.txt
+      name: Save installed packages
+    - uses: actions/upload-artifact@v3
+      name: Upload installed packages
+      with:
+        name: requirements
+        path: notebooks-${{ matrix.version }}-${{ matrix.kind }}-requirements.txt
+    - run: pip install pytest pytest-runner coverage
+      name: Install pytest
+
     - run: python setup.py pytest
       name: Run notebook tests
       id: run_tests
@@ -156,16 +180,12 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: [3.6, 3.7, 3.8, 3.9]
+        python-version: ['3.7', '3.8', '3.9', '3.10']
         kind: [serial, other, dml, main, treatment]
         exclude:
           # Serial tests fail randomly on mac sometimes, so we don't run them there
           - os: macos-latest
             kind: serial
-          # Python 3.6 isn't supported on ubuntu-latest
-          - os: ubuntu-latest
-            python-version: 3.6
-
         # Assign the correct package and testing options for each kind of test
         include:
           - kind: serial
@@ -197,8 +217,15 @@ jobs:
     - run: python -m pip install --upgrade pip && pip install --upgrade setuptools
       name: Ensure latest pip and setuptools
     # Add verbose flag to pip installation if in debug mode
-    - run: pip install -e .${{ matrix.extras }} ${{ fromJSON('["","-v"]')[runner.debug] }}
+    - run: pip install -e .${{ matrix.extras }} ${{ fromJSON('["","-v"]')[runner.debug] }} ${{ env.use_lkg && '-r lkg.txt' }}
       name: Install econml
+    - run: pip freeze --exclude-editable > tests-${{ matrix.os }}-${{ matrix.python-version }}-${{ matrix.kind }}-requirements.txt
+      name: Save installed packages
+    - uses: actions/upload-artifact@v3
+      name: Upload installed packages
+      with:
+        name: requirements
+        path: tests-${{ matrix.os }}-${{ matrix.python-version }}-${{ matrix.kind }}-requirements.txt
     - run: pip install pytest pytest-runner coverage
       name: Install pytest
     - run: python setup.py pytest
@@ -236,7 +263,7 @@ jobs:
     - uses: actions/setup-python@v4
       name: Setup Python
       with:
-        python-version: 3.8
+        python-version: '3.8'
     - run: pip install coverage
       name: Install coverage
     - run: coverage combine coverage/
diff --git a/lkg-notebook.txt b/lkg-notebook.txt
new file mode 100644
index 000000000..8ecd8e6b2
--- /dev/null
+++ b/lkg-notebook.txt
@@ -0,0 +1,154 @@
+Jinja2==3.1.2
+Keras-Applications==1.0.8; python_version<='3.8'
+Keras-Preprocessing==1.1.2; python_version<='3.8'
+Keras==2.3.1; python_version<='3.8'
+Markdown==3.4.3; python_version<='3.8'
+MarkupSafe==2.1.2
+Pillow==9.5.0
+PyYAML==6.0
+Pygments==2.15.1
+QtPy==2.3.1
+Send2Trash==1.8.2
+Werkzeug==2.3.4; python_version<='3.8'
+absl-py==1.4.0; python_version<='3.8'
+anyio==3.6.2
+argon2-cffi-bindings==21.2.0
+argon2-cffi==21.3.0
+arrow==1.2.3
+asttokens==2.2.1
+astunparse==1.6.3; python_version<='3.8'
+attrs==23.1.0
+backcall==0.2.0
+beautifulsoup4==4.12.2
+bleach==6.0.0
+cachetools==4.2.4; python_version<='3.8'
+certifi==2023.5.7; python_version<='3.8'
+cffi==1.15.1
+charset-normalizer==3.1.0; python_version<='3.8'
+cloudpickle==2.2.1
+comm==0.1.3
+cycler==0.11.0
+debugpy==1.6.7
+decorator==5.1.1
+defusedxml==0.7.1
+dowhy==0.8; '3.9'<=python_version
+executing==1.2.0
+fastjsonschema==2.16.3
+fonttools==4.39.4
+fqdn==1.5.1
+gast==0.3.3; python_version<='3.8'
+google-auth-oauthlib==0.4.6; python_version<='3.8'
+google-auth==1.35.0; python_version<='3.8'
+google-pasta==0.2.0; python_version<='3.8'
+graphviz==0.20.1
+grpcio==1.54.2; python_version<='3.8'
+h5py==2.10.0; python_version<='3.8'
+idna==3.4
+importlib-metadata==6.6.0
+importlib-resources==5.12.0; python_version<='3.8'
+ipykernel==6.23.1
+ipython-genutils==0.2.0
+ipython==8.12.2; python_version<='3.8'
+ipython==8.13.2; '3.9'<=python_version
+ipywidgets==8.0.6
+isoduration==20.11.0
+jedi==0.18.2
+joblib==1.2.0
+jsonpointer==2.3
+jsonschema==4.17.3
+jupyter-console==6.6.3
+jupyter-events==0.6.3
+jupyter==1.0.0
+jupyter_client==8.2.0
+jupyter_core==5.3.0
+jupyter_server==2.5.0
+jupyter_server_terminals==0.4.4
+jupyterlab-pygments==0.2.2
+jupyterlab-widgets==3.0.7
+kiwisolver==1.4.4
+lightgbm==3.3.5
+llvmlite==0.40.0
+matplotlib-inline==0.1.6
+matplotlib==3.5.3
+mistune==2.0.5
+mpmath==1.3.0; '3.9'<=python_version
+nbclassic==1.0.0
+nbclient==0.7.4
+nbconvert==7.4.0
+nbformat==5.8.0
+nest-asyncio==1.5.6
+networkx==3.1; '3.9'<=python_version
+notebook==6.5.4
+notebook_shim==0.2.3
+numba==0.57.0
+numpy==1.23.5; python_version<='3.8'
+numpy==1.24.3; '3.9'<=python_version
+oauthlib==3.2.2; python_version<='3.8'
+opt-einsum==3.3.0; python_version<='3.8'
+packaging==23.1
+pandas==2.0.1
+pandocfilters==1.5.0
+parso==0.8.3
+patsy==0.5.3
+pexpect==4.8.0
+pickleshare==0.7.5
+pkgutil_resolve_name==1.3.10; python_version<='3.8'
+platformdirs==3.5.1
+prometheus-client==0.16.0
+prompt-toolkit==3.0.38
+protobuf==3.20.3; python_version<='3.8'
+psutil==5.9.5
+ptyprocess==0.7.0
+pure-eval==0.2.2
+pyasn1-modules==0.3.0; python_version<='3.8'
+pyasn1==0.5.0; python_version<='3.8'
+pycparser==2.21
+pydot==1.4.2; '3.9'<=python_version
+pyparsing==3.0.9
+pyrsistent==0.19.3
+python-dateutil==2.8.2
+python-json-logger==2.0.7
+pytz==2023.3
+pyzmq==25.0.2
+qtconsole==5.4.3
+requests-oauthlib==1.3.1; python_version<='3.8'
+requests==2.30.0; python_version<='3.8'
+rfc3339-validator==0.1.4
+rfc3986-validator==0.1.1
+rsa==4.9; python_version<='3.8'
+scikit-learn==1.2.2
+scipy==1.10.1; '3.9'<=python_version
+scipy==1.4.1; python_version<='3.8'
+seaborn==0.12.2
+shap==0.41.0
+six==1.16.0
+slicer==0.0.7
+sniffio==1.3.0
+soupsieve==2.4.1
+sparse==0.14.0
+stack-data==0.6.2
+statsmodels==0.14.0
+sympy==1.12; '3.9'<=python_version
+tensorboard-plugin-wit==1.8.1; python_version<='3.8'
+tensorboard==2.2.2; python_version<='3.8'
+tensorflow-estimator==2.2.0; python_version<='3.8'
+tensorflow==2.2.0; python_version<='3.8'
+termcolor==2.3.0; python_version<='3.8'
+terminado==0.17.1
+threadpoolctl==3.1.0
+tinycss2==1.2.1
+tornado==6.3.2
+tqdm==4.65.0
+traitlets==5.9.0
+typing_extensions==4.5.0
+tzdata==2023.3
+uri-template==1.2.0
+urllib3==2.0.2; python_version<='3.8'
+wcwidth==0.2.6
+webcolors==1.13
+webencodings==0.5.1
+websocket-client==1.5.1
+widgetsnbextension==4.0.7
+wrapt==1.15.0; python_version<='3.8'
+xgboost==1.7.5
+zipp==3.15.0
\ No newline at end of file
diff --git a/lkg.txt b/lkg.txt
new file mode 100644
index 000000000..dd79c8c59
--- /dev/null
+++ b/lkg.txt
@@ -0,0 +1,89 @@
+Keras-Applications==1.0.8; python_version<='3.8'
+Keras-Preprocessing==1.1.2; python_version<='3.8'
+Keras==2.3.1; python_version<='3.8'
+Markdown==3.4.3; python_version<='3.8'
+MarkupSafe==2.1.2; python_version<='3.8'
+Pillow==9.5.0
+PyYAML==6.0; python_version<='3.8'
+Werkzeug==2.2.3; python_version<='3.7'
+Werkzeug==2.3.4; python_version=='3.8'
+absl-py==1.4.0; python_version<='3.8'
+argcomplete==3.0.8; '3.9'<=python_version and platform_system=='Windows'
+astunparse==1.6.3; python_version<='3.8'
+cachetools==4.2.4; python_version<='3.8'
+certifi==2023.5.7; python_version<='3.8'
+charset-normalizer==3.1.0; python_version<='3.8'
+click==8.1.3; '3.9'<=python_version and platform_system=='Windows'
+cloudpickle==2.2.1
+colorama==0.4.6; platform_system=='Windows'
+cycler==0.11.0
+dowhy==0.8
+fonttools==4.38.0; python_version<='3.7'
+fonttools==4.39.4; '3.8'<=python_version
+gast==0.3.3; python_version<='3.8'
+google-auth-oauthlib==0.4.6; python_version<='3.8'
+google-auth==1.35.0; python_version<='3.8'
+google-pasta==0.2.0; python_version<='3.8'
+graphviz==0.20.1
+grpcio==1.54.0; python_version<='3.8'
+h5py==2.10.0; python_version<='3.8'
+idna==3.4; python_version<='3.8'
+importlib-metadata==6.6.0; python_version<='3.8'
+joblib==1.2.0
+kiwisolver==1.4.4
+lightgbm==3.3.5
+llvmlite==0.39.1; python_version<='3.7'
+llvmlite==0.40.0; '3.8'<=python_version
+matplotlib==3.5.3
+mpmath==1.3.0
+networkx==2.6.3; python_version<='3.7'
+networkx==3.1; '3.8'<=python_version
+numba==0.56.4; python_version<='3.7'
+numba==0.57.0; '3.8'<=python_version
+numpy==1.18.5; python_version<='3.7'
+numpy==1.23.5; '3.8'<=python_version
+oauthlib==3.2.2; python_version<='3.8'
+opt-einsum==3.3.0; python_version<='3.8'
+packaging==23.1
+pandas==1.3.5; python_version<='3.7'
+pandas==2.0.1; '3.8'<=python_version
+patsy==0.5.3
+pipx==1.2.0; '3.9'<=python_version and platform_system=='Windows'
+protobuf==3.20.3
+pyasn1-modules==0.3.0; python_version<='3.8'
+pyasn1==0.5.0; python_version<='3.8'
+pydot==1.4.2
+pyparsing==3.0.9
+python-dateutil==2.8.2
+pytz==2023.3
+requests-oauthlib==1.3.1; python_version<='3.8'
+requests==2.30.0; python_version<='3.8'
+rsa==4.9; python_version<='3.8'
+scikit-learn==1.0.2; python_version<='3.7'
+scikit-learn==1.2.2; '3.8'<=python_version
+scipy==1.10.1; '3.9'<=python_version
+scipy==1.4.1; python_version=='3.8'
+scipy==1.7.3; python_version<='3.7'
+shap==0.41.0
+six==1.16.0
+slicer==0.0.7
+sparse==0.13.0; python_version<='3.7'
+sparse==0.14.0; '3.8'<=python_version
+statsmodels==0.13.5; python_version<='3.7'
+statsmodels==0.14.0; '3.8'<=python_version
+sympy==1.10.1; python_version<='3.7'
+sympy==1.12; '3.8'<=python_version
+tensorboard-plugin-wit==1.8.1; python_version<='3.8'
+tensorboard==2.2.2; python_version<='3.8'
+tensorflow-estimator==2.2.0; python_version<='3.8'
+tensorflow==2.2.0; python_version=='3.8'
+tensorflow==2.2.3; python_version<='3.7'
+termcolor==2.3.0; python_version<='3.8'
+threadpoolctl==3.1.0
+tqdm==4.65.0
+typing_extensions==4.5.0; python_version<='3.7'
+tzdata==2023.3; '3.8'<=python_version
+urllib3==2.0.2; python_version<='3.8'
+userpath==1.8.0; '3.9'<=python_version and platform_system=='Windows'
+wrapt==1.15.0; python_version<='3.8'
+zipp==3.15.0; python_version<='3.8'
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index 25f5023d1..d10f1e3d5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -68,8 +68,9 @@ dowhy =
     dowhy < 0.9
 all =
     azure-cli
-    keras < 2.4
-    tensorflow > 1.10, < 2.3
+    ; The tf components are not currently compatible with python 3.9 or above because of tensorflow breaking changes
+    keras < 2.4;python_version < '3.9'
+    tensorflow > 1.10, < 2.3;python_version < '3.9'
     ; Version capped due to tensorflow incompatibility
     protobuf < 4
     ; Version capped due to tensorflow incompatibility