diff --git a/.github/actions/cache-test-data/action.yml b/.github/actions/cache-test-data/action.yml
new file mode 100644
index 000000000..35fa4ca1e
--- /dev/null
+++ b/.github/actions/cache-test-data/action.yml
@@ -0,0 +1,45 @@
+name: "Cache Test Data"
+description: "Caches DASCore test data using Pooch cache directory"
+inputs:
+  cache-number:
+    description: "Cache number. Use != 1 to reset data cache"
+    required: false
+    default: "1"
+
+runs:
+  using: "composite"
+  steps:
+    - name: verify prerequisites
+      shell: bash -el {0}
+      run: |
+        if ! command -v python &> /dev/null; then
+          echo "❌ Error: Python is not installed or not in PATH"
+          echo "This action requires Python to be installed first."
+          exit 1
+        fi
+        if ! python -c "import pooch" 2>/dev/null; then
+          echo "❌ Error: Pooch is not installed"
+          echo "This action requires Pooch to be installed (pip install pooch or include in dependencies)."
+          exit 1
+        fi
+        echo "✅ Prerequisites verified: Python and Pooch are available"
+
+    - name: get data registry hash
+      shell: bash -el {0}
+      run: |
+        echo "DATA_REGISTRY_HASH=$(python -c "import pooch; print(pooch.file_hash('dascore/data_registry.txt'))")" >> $GITHUB_ENV
+
+    - name: get data cache path
+      shell: bash -el {0}
+      run: |
+        echo "DATA_CACHE_PATH=$(python -c "import pooch; print(pooch.os_cache('dascore'))")" >> $GITHUB_ENV
+
+    - name: cache test data
+      uses: actions/cache@v4
+      id: cache-test-data
+      with:
+        enableCrossOsArchive: true
+        path: ${{ env.DATA_CACHE_PATH }}
+        key: data-${{ env.DATA_REGISTRY_HASH }}-${{ inputs.cache-number }}
+        restore-keys: |
+          data-${{ env.DATA_REGISTRY_HASH }}-
diff --git a/.github/actions/load-shared-vars/action.yml b/.github/actions/load-shared-vars/action.yml
new file mode 100644
index 000000000..221fe7732
--- /dev/null
+++ b/.github/actions/load-shared-vars/action.yml
@@ -0,0 +1,68 @@
+name: "Load Shared Variables"
+description: "Loads shared variables from .github/shared-vars.yml and sets them as environment variables and outputs"
+
+outputs:
+  test-matrix:
+    description: "Python version matrix for full tests"
+    value: ${{ steps.load.outputs.test-matrix }}
+  min-deps-matrix:
+    description: "Python version matrix for minimum dependency tests"
+    value: ${{ steps.load.outputs.min-deps-matrix }}
+
+runs:
+  using: "composite"
+  steps:
+    - name: install pyyaml
+      shell: bash
+      run: python -m pip install --quiet pyyaml
+
+    - name: load shared variables
+      id: load
+      shell: bash
+      run: |
+        # Read shared-vars.yml and set environment variables
+        python << 'EOF'
+        import yaml
+        import os
+        import json
+
+        def flatten_dict(d, parent_key='', sep='_'):
+            """Recursively flatten nested dictionary into env var format."""
+            items = []
+            for k, v in d.items():
+                new_key = f"{parent_key}{sep}{k}".upper() if parent_key else k.upper()
+                if isinstance(v, dict):
+                    items.extend(flatten_dict(v, new_key, sep=sep).items())
+                elif isinstance(v, list):
+                    # Convert lists to JSON strings for use in workflows
+                    items.append((new_key, json.dumps(v)))
+                else:
+                    items.append((new_key, str(v)))
+            return dict(items)
+
+        # Load shared variables file
+        with open('.github/shared-vars.yml', 'r') as f:
+            config = yaml.safe_load(f)
+
+        # Flatten all variables
+        env_vars = flatten_dict(config)
+
+        # Write to GITHUB_ENV
+        with open(os.environ['GITHUB_ENV'], 'a') as env_file:
+            for key, value in sorted(env_vars.items()):
+                env_file.write(f"{key}={value}\n")
+                print(f"✅ Set {key}={value}")
+
+        # Also output specific matrices for job outputs
+        python_config = config.get('python', {})
+        test_matrix = python_config.get('test_matrix', [])
+        min_deps_matrix = python_config.get('min_deps_matrix', [])
+
+        # Write to GITHUB_OUTPUT for action outputs
+        with open(os.environ['GITHUB_OUTPUT'], 'a') as output_file:
+            output_file.write(f"test-matrix={json.dumps(test_matrix)}\n")
+            output_file.write(f"min-deps-matrix={json.dumps(min_deps_matrix)}\n")
+
+        print(f"📋 Output test-matrix: {test_matrix}")
+        print(f"📋 Output min-deps-matrix: {min_deps_matrix}")
+        EOF
diff --git a/.github/actions/mamba-install-dascore/action.yml b/.github/actions/mamba-install-dascore/action.yml
index 4700d8dab..dd3019e1a 100644
--- a/.github/actions/mamba-install-dascore/action.yml
+++ b/.github/actions/mamba-install-dascore/action.yml
@@ -64,43 +64,15 @@ runs:
       run: |
         git fetch --tags --force
 
-    - name: get data registry hash
-      shell: bash
-      run: |
-        echo "DATA_REGISTRY_HASH=$(sha256sum dascore/data_registry.txt | cut -d' ' -f1)" >> $GITHUB_ENV
-
     - name: install dascore
       if: "${{ inputs.install-package == 'true' }}"
       shell: bash -l {0}
       run: |
         pip install -e .${{ inputs.install-group-str }}
 
-    - name: set data cache path
-      shell: bash -el {0}
-      run: |
-        echo "DATA_CACHE_PATH=$(python -c "import pooch; print(pooch.os_cache('dascore'))")" >> $GITHUB_ENV
-
-    - name: cache test data
-      uses: actions/cache@v4
-      id: cache-test-data
+    - uses: ./.github/actions/cache-test-data
       with:
-        enableCrossOsArchive: true
-        path: ${{ env.DATA_CACHE_PATH }}
-        key: data-${{ env.DATA_REGISTRY_HASH }}-${{ inputs.cache-number }}
-        restore-keys: |
-          data-${{ env.DATA_REGISTRY_HASH }}-
-
-    - name: verify cache status
-      shell: bash -el {0}
-      run: |
-        if [[ "${{ steps.cache-test-data.outputs.cache-hit }}" == "true" ]]; then
-          echo "✅ Cache hit! Using cached test data from: ${{ env.DATA_CACHE_PATH }}"
-          echo "Cache key: data-${{ env.DATA_REGISTRY_HASH }}-${{ inputs.cache-number }}"
-        else
-          echo "❌ Cache miss. Test data will be downloaded fresh."
-          echo "Cache key: data-${{ env.DATA_REGISTRY_HASH }}-${{ inputs.cache-number }}"
-        fi
-        ls -la "${{ env.DATA_CACHE_PATH }}" || echo "Cache directory does not exist yet"
+        cache-number: ${{ inputs.cache-number }}
 
     # Print out the package info for current environment
     - name: print package info
diff --git a/.github/doc_environment.yml b/.github/doc_environment.yml
index 8bde2d6cc..946709951 100644
--- a/.github/doc_environment.yml
+++ b/.github/doc_environment.yml
@@ -2,7 +2,6 @@ name: dascore
 channels:
   - conda-forge
 dependencies:
-  - python=3.12
   - pytest
   - pydantic>2.0
   - pip
diff --git a/.github/shared-vars.yml b/.github/shared-vars.yml
new file mode 100644
index 000000000..7c7bdeeef
--- /dev/null
+++ b/.github/shared-vars.yml
@@ -0,0 +1,20 @@
+# Shared variables used across all GitHub Actions workflows
+# Update these values to propagate changes to all workflows
+
+python:
+  # Default Python version for most workflows (docs, linting, coverage, etc.)
+  default: "3.13"
+
+  # Full test matrix versions (runtests.yml)
+  test_matrix:
+    - "3.11"
+    - "3.12"
+    - "3.13"
+    - "3.14"
+
+  # Minimum dependency test matrix versions (run_min_dep_tests.yml)
+  min_deps_matrix:
+    - "3.13"
+    - "3.14"
+
+# Add other shared variables here as needed
diff --git a/.github/workflows/build_deploy_master_docs.yaml b/.github/workflows/build_deploy_master_docs.yaml
index fb4d8cd1d..6191c23ef 100644
--- a/.github/workflows/build_deploy_master_docs.yaml
+++ b/.github/workflows/build_deploy_master_docs.yaml
@@ -37,9 +37,11 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
+
       - uses: ./.github/actions/mamba-install-dascore
         with:
-          python-version: "3.12"
+          python-version: ${{ env.PYTHON_DEFAULT }}
           environment-file: './.github/doc_environment.yml'
 
       - uses: ./.github/actions/prep_doc_build
diff --git a/.github/workflows/build_deploy_stable_docs.yaml b/.github/workflows/build_deploy_stable_docs.yaml
index 4fda3aa89..8b1534cf3 100644
--- a/.github/workflows/build_deploy_stable_docs.yaml
+++ b/.github/workflows/build_deploy_stable_docs.yaml
@@ -31,10 +31,11 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
 
       - uses: ./.github/actions/mamba-install-dascore
         with:
-          python-version: "3.12"
+          python-version: ${{ env.PYTHON_DEFAULT }}
           environment-file: './.github/doc_environment.yml'
 
       - uses: ./.github/actions/build-docs
diff --git a/.github/workflows/get_coverage.yml b/.github/workflows/get_coverage.yml
index 774ff6889..141ffc5c9 100644
--- a/.github/workflows/get_coverage.yml
+++ b/.github/workflows/get_coverage.yml
@@ -15,10 +15,11 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
 
       - uses: ./.github/actions/mamba-install-dascore
         with:
-          python-version: "3.12"
+          python-version: ${{ env.PYTHON_DEFAULT }}
           cache-number: 1
 
       - name: run test suite
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 14503b9a5..f16a0265f 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -15,12 +15,14 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
+
       - name: Install uv
         uses: astral-sh/setup-uv@v3
 
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.12'
+          python-version: ${{ env.PYTHON_DEFAULT }}
 
       - name: install linting packages
         run: uv tool install pre-commit
diff --git a/.github/workflows/profile.yml b/.github/workflows/profile.yml
index 4a4ca9a8e..89460ff2c 100644
--- a/.github/workflows/profile.yml
+++ b/.github/workflows/profile.yml
@@ -8,9 +8,6 @@ on:
   pull_request:
   workflow_dispatch:
 
-env:
-  python_version: "3.13"
-
 jobs:
   benchmarks:
     name: Run benchmarks
@@ -21,13 +18,19 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
+
       - uses: actions/setup-python@v6
         with:
-          python-version: ${{ env.python_version }}
+          python-version: ${{ env.PYTHON_DEFAULT }}
 
       - name: Install dependencies
         run: pip install ".[profile]"
 
+      - uses: ./.github/actions/cache-test-data
+        with:
+          cache-number: 1
+
       - name: Run benchmarks
         uses: CodSpeedHQ/action@v4
         with:
diff --git a/.github/workflows/run_min_dep_tests.yml b/.github/workflows/run_min_dep_tests.yml
index 68939ea96..28ac3eecf 100644
--- a/.github/workflows/run_min_dep_tests.yml
+++ b/.github/workflows/run_min_dep_tests.yml
@@ -23,16 +23,25 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  # Load Python version matrix from shared-vars.yml
+  setup:
+    runs-on: ubuntu-latest
+    outputs:
+      python-matrix: ${{ steps.load-vars.outputs.min-deps-matrix }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/load-shared-vars
+        id: load-vars
+
   # Runs the tests on combinations of the supported python/os matrix.
   test_code_min_deps:
-
+    needs: setup
     timeout-minutes: 25
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
-        python-version: [ '3.12', '3.13' ]
-
+        python-version: ${{ fromJson(needs.setup.outputs.python-matrix) }}
 
     # only run if CI isn't turned off
     if: github.event_name == 'push' || !contains(github.event.pull_request.labels.*.name, 'no_ci')
diff --git a/.github/workflows/runtests.yml b/.github/workflows/runtests.yml
index 4f934eea3..70d75df85 100644
--- a/.github/workflows/runtests.yml
+++ b/.github/workflows/runtests.yml
@@ -25,27 +25,37 @@ concurrency:
   cancel-in-progress: true
 
 jobs:
+  # Load Python version matrix from shared-vars.yml
+  setup:
+    runs-on: ubuntu-latest
+    outputs:
+      python-matrix: ${{ steps.load-vars.outputs.test-matrix }}
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/load-shared-vars
+        id: load-vars
+
   # Runs the tests on combinations of the supported python/os matrix.
   test_code:
-
+    needs: setup
     timeout-minutes: 25
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        python-version: ['3.10', '3.11', "3.12", "3.13"]
+        python-version: ${{ fromJson(needs.setup.outputs.python-matrix) }}
 
     # only run if CI isn't turned off
     if: github.event_name == 'push' || !contains(github.event.pull_request.labels.*.name, 'no_ci')
 
     env:
       # set conda environment file with dependencies
-      env_file: "environment.yml"
+      env_file: 'environment.yml'
 
     steps:
       - uses: actions/checkout@v4
         with:
-          fetch-tags: "true"
+          fetch-tags: 'true'
           fetch-depth: '0'
 
       - uses: ./.github/actions/mamba-install-dascore
diff --git a/.github/workflows/test_doc_build.yml b/.github/workflows/test_doc_build.yml
index e4cc4ffd6..ebcc7de82 100644
--- a/.github/workflows/test_doc_build.yml
+++ b/.github/workflows/test_doc_build.yml
@@ -16,10 +16,11 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
 
       - uses: ./.github/actions/mamba-install-dascore
         with:
-          python-version: "3.12"
+          python-version: ${{ env.PYTHON_DEFAULT }}
           environment-file: './.github/doc_environment.yml'
           cache-number: 1
 
diff --git a/.github/workflows/upload_pypi.yml b/.github/workflows/upload_pypi.yml
index 383be8aa7..3f9d819fe 100644
--- a/.github/workflows/upload_pypi.yml
+++ b/.github/workflows/upload_pypi.yml
@@ -14,6 +14,8 @@ jobs:
           fetch-tags: "true"
           fetch-depth: '0'
 
+      - uses: ./.github/actions/load-shared-vars
+
       - name: setup conda
         uses: conda-incubator/setup-miniconda@v3
         with:
@@ -21,7 +23,7 @@ jobs:
           channels: conda-forge,defaults
           channel-priority: true
           environment-file: environment.yml
-          python-version: 3.11
+          python-version: ${{ env.PYTHON_DEFAULT }}
 
       - name: create dists
         shell: bash -l {0}
diff --git a/pyproject.toml b/pyproject.toml
index 25eaef8ab..a82342d55 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -36,6 +36,8 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+
 ]
 
 keywords = ["geophysics", "distributed-acoustic-sensing"]