diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index dc357101e79fd..0000000000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-version: 2.1
-
-jobs:
-  test-arm:
-    machine:
-      image: ubuntu-2004:202101-01
-    resource_class: arm.medium
-    environment:
-      ENV_FILE: ci/deps/circle-38-arm64.yaml
-      PYTEST_WORKERS: auto
-      PATTERN: "not slow and not network and not clipboard and not arm_slow"
-      PYTEST_TARGET: "pandas"
-    steps:
-      - checkout
-      - run: ci/setup_env.sh
-      - run: PATH=$HOME/miniconda3/envs/pandas-dev/bin:$HOME/miniconda3/condabin:$PATH ci/run_tests.sh
-
-workflows:
-  test:
-    jobs:
-      - test-arm
diff --git a/.github/actions/build_pandas/action.yml b/.github/actions/build_pandas/action.yml
index 2e4bfea165316..330f93c36dfe7 100644
--- a/.github/actions/build_pandas/action.yml
+++ b/.github/actions/build_pandas/action.yml
@@ -10,8 +10,19 @@ runs:
         conda list
       shell: bash -l {0}
 
+    - name: Get Date
+      id: get-date
+      run: echo "::set-output name=today::$(/bin/date -u '+%Y%m%d')"
+      shell: bash
+
+    - name: ccache
+      uses: hendrikmuhs/ccache-action@940a79df1711f4d50b87e19ddf3b0a3c182abe68
+      with:
+        key: ${{ runner.os }}--${{ runner.arch }}--${{ steps.get-date.outputs.today }}
+
     - name: Build Pandas
       run: |
+        export PATH="/usr/lib/ccache:/usr/local/opt/ccache/libexec:$PATH"
         python setup.py build_ext -j 2
         python -m pip install -e . --no-build-isolation --no-use-pep517 --no-index
       shell: bash -l {0}
diff --git a/.github/workflows/assign.yml b/.github/workflows/assign.yml
deleted file mode 100644
index a1812843b1a8f..0000000000000
--- a/.github/workflows/assign.yml
+++ /dev/null
@@ -1,13 +0,0 @@
-name: Assign
-on:
-  issue_comment:
-    types: created
-
-jobs:
-  issue_assign:
-    runs-on: ubuntu-latest
-    steps:
-    - if: github.event.comment.body == 'take'
-      run: |
-        echo "Assigning issue ${{ github.event.issue.number }} to ${{ github.event.comment.user.login }}"
-        curl -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" -d '{"assignees": ["${{ github.event.comment.user.login }}"]}' https://api.github.com/repos/${{ github.repository }}/issues/${{ github.event.issue.number }}/assignees
diff --git a/.github/workflows/asv-bot.yml b/.github/workflows/asv-bot.yml
deleted file mode 100644
index f3946aeb84a63..0000000000000
--- a/.github/workflows/asv-bot.yml
+++ /dev/null
@@ -1,81 +0,0 @@
-name: "ASV Bot"
-
-on:
-  issue_comment: # Pull requests are issues
-    types:
-      - created
-
-env:
-  ENV_FILE: environment.yml
-  COMMENT: ${{github.event.comment.body}}
-
-jobs:
-  autotune:
-    name: "Run benchmarks"
-    # TODO: Support more benchmarking options later, against different branches, against self, etc
-    if: startsWith(github.event.comment.body, '@github-actions benchmark')
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: bash -l {0}
-
-    concurrency:
-      # Set concurrency to prevent abuse(full runs are ~5.5 hours !!!)
-      # each user can only run one concurrent benchmark bot at a time
-      # We don't cancel in progress jobs, but if you want to benchmark multiple PRs, you're gonna have
-      # to wait
-      group: ${{ github.actor }}-asv
-      cancel-in-progress: false
-
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
-
-      - name: Cache conda
-        uses: actions/cache@v2
-        with:
-          path: ~/conda_pkgs_dir
-          key: ${{ runner.os }}-conda-${{ hashFiles('${{ env.ENV_FILE }}') }}
-
-        # Although asv sets up its own env, deps are still needed
-        # during discovery process
-      - uses: conda-incubator/setup-miniconda@v2
-        with:
-          activate-environment: pandas-dev
-          channel-priority: strict
-          environment-file: ${{ env.ENV_FILE }}
-          use-only-tar-bz2: true
-
-      - name: Run benchmarks
-        id: bench
-        continue-on-error: true # This is a fake failure, asv will exit code 1 for regressions
-        run: |
-          # extracting the regex, see https://stackoverflow.com/a/36798723
-          REGEX=$(echo "$COMMENT" | sed -n "s/^.*-b\s*\(\S*\).*$/\1/p")
-          cd asv_bench
-          asv check -E existing
-          git remote add upstream https://github.com/pandas-dev/pandas.git
-          git fetch upstream
-          asv machine --yes
-          asv continuous -f 1.1 -b $REGEX upstream/main HEAD
-          echo 'BENCH_OUTPUT<<EOF' >> $GITHUB_ENV
-          asv compare -f 1.1 upstream/main HEAD >> $GITHUB_ENV
-          echo 'EOF' >> $GITHUB_ENV
-          echo "REGEX=$REGEX" >> $GITHUB_ENV
-
-      - uses: actions/github-script@v5
-        env:
-          BENCH_OUTPUT: ${{env.BENCH_OUTPUT}}
-          REGEX: ${{env.REGEX}}
-        with:
-          script: |
-            const ENV_VARS = process.env
-            const run_url = `https://github.com/${context.repo.owner}/${context.repo.repo}/actions/runs/${context.runId}`
-            github.rest.issues.createComment({
-              issue_number: context.issue.number,
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              body: '\nBenchmarks completed. View runner logs here.' + run_url + '\nRegex used: '+ 'regex ' + ENV_VARS["REGEX"] + '\n' + ENV_VARS["BENCH_OUTPUT"]
-            })
diff --git a/.github/workflows/autoupdate-pre-commit-config.yml b/.github/workflows/autoupdate-pre-commit-config.yml
deleted file mode 100644
index 3696cba8cf2e6..0000000000000
--- a/.github/workflows/autoupdate-pre-commit-config.yml
+++ /dev/null
@@ -1,33 +0,0 @@
-name: "Update pre-commit config"
-
-on:
-  schedule:
-    - cron: "0 7 1 * *" # At 07:00 on 1st of every month.
-  workflow_dispatch:
-
-jobs:
-  update-pre-commit:
-    if: github.repository_owner == 'pandas-dev'
-    name: Autoupdate pre-commit config
-    runs-on: ubuntu-latest
-    steps:
-      - name: Set up Python
-        uses: actions/setup-python@v2
-      - name: Cache multiple paths
-        uses: actions/cache@v2
-        with:
-          path: |
-            ~/.cache/pre-commit
-            ~/.cache/pip
-          key: pre-commit-autoupdate-${{ runner.os }}-build
-      - name: Update pre-commit config packages
-        uses: technote-space/create-pr-action@v2
-        with:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          EXECUTE_COMMANDS: |
-            pip install pre-commit
-            pre-commit autoupdate || (exit 0);
-            pre-commit run -a || (exit 0);
-          COMMIT_MESSAGE: "⬆️ UPGRADE: Autoupdate pre-commit config"
-          PR_BRANCH_NAME: "pre-commit-config-update-${PR_ID}"
-          PR_TITLE: "⬆️ UPGRADE: Autoupdate pre-commit config"
diff --git a/.github/workflows/code-checks.yml b/.github/workflows/code-checks.yml
deleted file mode 100644
index 8a74ae14404b3..0000000000000
--- a/.github/workflows/code-checks.yml
+++ /dev/null
@@ -1,158 +0,0 @@
-name: Code Checks
-
-on:
-  push:
-    branches:
-      - main
-      - 1.4.x
-  pull_request:
-    branches:
-      - main
-      - 1.4.x
-
-env:
-  ENV_FILE: environment.yml
-  PANDAS_CI: 1
-
-jobs:
-  pre_commit:
-    name: pre-commit
-    runs-on: ubuntu-latest
-    concurrency:
-      # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-pre-commit
-      cancel-in-progress: true
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-
-    - name: Install Python
-      uses: actions/setup-python@v2
-      with:
-        python-version: '3.9.7'
-
-    - name: Run pre-commit
-      uses: pre-commit/action@v2.0.3
-
-  typing_and_docstring_validation:
-    name: Docstring and typing validation
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: bash -l {0}
-
-    concurrency:
-      # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-code-checks
-      cancel-in-progress: true
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Cache conda
-      uses: actions/cache@v2
-      with:
-        path: ~/conda_pkgs_dir
-        key: ${{ runner.os }}-conda-${{ hashFiles('${{ env.ENV_FILE }}') }}
-
-    - uses: conda-incubator/setup-miniconda@v2
-      with:
-        mamba-version: "*"
-        channels: conda-forge
-        activate-environment: pandas-dev
-        channel-priority: strict
-        environment-file: ${{ env.ENV_FILE }}
-        use-only-tar-bz2: true
-
-    - name: Install node.js (for pyright)
-      uses: actions/setup-node@v2
-      with:
-        node-version: "16"
-
-    - name: Install pyright
-      # note: keep version in sync with .pre-commit-config.yaml
-      run: npm install -g pyright@1.1.212
-
-    - name: Build Pandas
-      id: build
-      uses: ./.github/actions/build_pandas
-
-    - name: Run checks on imported code
-      run: ci/code_checks.sh code
-      if: ${{ steps.build.outcome == 'success' }}
-
-    - name: Run doctests
-      run: ci/code_checks.sh doctests
-      if: ${{ steps.build.outcome == 'success' }}
-
-    - name: Run docstring validation
-      run: ci/code_checks.sh docstrings
-      if: ${{ steps.build.outcome == 'success' }}
-
-    - name: Run typing validation
-      run: ci/code_checks.sh typing
-      if: ${{ steps.build.outcome == 'success' }}
-
-    - name: Run docstring validation script tests
-      run: pytest scripts
-      if: ${{ steps.build.outcome == 'success' }}
-
-  asv-benchmarks:
-    name: ASV Benchmarks
-    runs-on: ubuntu-latest
-    defaults:
-      run:
-        shell: bash -l {0}
-
-    concurrency:
-      # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-asv-benchmarks
-      cancel-in-progress: true
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Cache conda
-      uses: actions/cache@v2
-      with:
-        path: ~/conda_pkgs_dir
-        key: ${{ runner.os }}-conda-${{ hashFiles('${{ env.ENV_FILE }}') }}
-
-    - uses: conda-incubator/setup-miniconda@v2
-      with:
-        mamba-version: "*"
-        channels: conda-forge
-        activate-environment: pandas-dev
-        channel-priority: strict
-        environment-file: ${{ env.ENV_FILE }}
-        use-only-tar-bz2: true
-
-    - name: Build Pandas
-      id: build
-      uses: ./.github/actions/build_pandas
-
-    - name: Run ASV benchmarks
-      run: |
-        cd asv_bench
-        asv check -E existing
-        git remote add upstream https://github.com/pandas-dev/pandas.git
-        git fetch upstream
-        asv machine --yes
-        asv dev | sed "/failed$/ s/^/##[error]/" | tee benchmarks.log
-        if grep "failed" benchmarks.log > /dev/null ; then
-            exit 1
-        fi
-      if: ${{ steps.build.outcome == 'success' }}
-
-    - name: Publish benchmarks artifact
-      uses: actions/upload-artifact@v2
-      with:
-        name: Benchmarks log
-        path: asv_bench/benchmarks.log
-      if: failure()
diff --git a/.github/workflows/comment_bot.yml b/.github/workflows/comment_bot.yml
deleted file mode 100644
index 8f610fd5781ef..0000000000000
--- a/.github/workflows/comment_bot.yml
+++ /dev/null
@@ -1,40 +0,0 @@
-name: Comment-bot
-
-on:
-  issue_comment:
-    types:
-      - created
-      - edited
-
-jobs:
-  autotune:
-    name: "Fixup pre-commit formatting"
-    if: startsWith(github.event.comment.body, '@github-actions pre-commit')
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - uses: r-lib/actions/pr-fetch@v2
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
-      - name: Cache multiple paths
-        uses: actions/cache@v2
-        with:
-          path: |
-            ~/.cache/pre-commit
-            ~/.cache/pip
-          key: pre-commit-dispatched-${{ runner.os }}-build
-      - uses: actions/setup-python@v2
-        with:
-          python-version: 3.8
-      - name: Install-pre-commit
-        run: python -m pip install --upgrade pre-commit
-      - name: Run pre-commit
-        run: pre-commit run --from-ref=origin/main --to-ref=HEAD --all-files || (exit 0)
-      - name: Commit results
-        run: |
-          git config user.name "$(git log -1 --pretty=format:%an)"
-          git config user.email "$(git log -1 --pretty=format:%ae)"
-          git commit -a -m 'Fixes from pre-commit [automated commit]' || echo "No changes to commit"
-      - uses: r-lib/actions/pr-push@v2
-        with:
-          repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/datamanger.yml b/.github/workflows/datamanger.yml
deleted file mode 100644
index 368c770ad5f14..0000000000000
--- a/.github/workflows/datamanger.yml
+++ /dev/null
@@ -1,53 +0,0 @@
-name: Data Manager
-
-on:
-  push:
-    branches:
-      - main
-      - 1.4.x
-  pull_request:
-    branches:
-      - main
-      - 1.4.x
-    paths-ignore:
-      - "doc/**"
-
-env:
-  ENV_FILE: environment.yml
-  PANDAS_CI: 1
-
-jobs:
-  data_manager:
-    name: Test experimental data manager
-    runs-on: ubuntu-latest
-    services:
-      moto:
-        image: motoserver/moto
-        env:
-          AWS_ACCESS_KEY_ID: foobar_key
-          AWS_SECRET_ACCESS_KEY: foobar_secret
-        ports:
-          - 5000:5000
-    concurrency:
-      # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-data_manager
-      cancel-in-progress: true
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Set up pandas
-      uses: ./.github/actions/setup
-
-    - name: Run tests
-      env:
-        PANDAS_DATA_MANAGER: array
-        PATTERN: "not network and not clipboard"
-        PYTEST_WORKERS: "auto"
-        PYTEST_TARGET: pandas
-      run: |
-        source activate pandas-dev
-        ci/run_tests.sh
diff --git a/.github/workflows/docbuild-and-upload.yml b/.github/workflows/docbuild-and-upload.yml
deleted file mode 100644
index 4cce75779d750..0000000000000
--- a/.github/workflows/docbuild-and-upload.yml
+++ /dev/null
@@ -1,72 +0,0 @@
-name: Doc Build and Upload
-
-on:
-  push:
-    branches:
-      - main
-      - 1.4.x
-  pull_request:
-    branches:
-      - main
-      - 1.4.x
-
-env:
-  ENV_FILE: environment.yml
-  PANDAS_CI: 1
-
-jobs:
-  web_and_docs:
-    name: Doc Build and Upload
-    runs-on: ubuntu-latest
-
-    concurrency:
-      # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-web-docs
-      cancel-in-progress: true
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Set up pandas
-      uses: ./.github/actions/setup
-
-    - name: Build website
-      run: |
-        source activate pandas-dev
-        python web/pandas_web.py web/pandas --target-path=web/build
-    - name: Build documentation
-      run: |
-        source activate pandas-dev
-        doc/make.py --warnings-are-errors
-
-    - name: Install ssh key
-      run: |
-        mkdir -m 700 -p ~/.ssh
-        echo "${{ secrets.server_ssh_key }}" > ~/.ssh/id_rsa
-        chmod 600 ~/.ssh/id_rsa
-        echo "${{ secrets.server_ip }} ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBE1Kkopomm7FHG5enATf7SgnpICZ4W2bw+Ho+afqin+w7sMcrsa0je7sbztFAV8YchDkiBKnWTG4cRT+KZgZCaY=" > ~/.ssh/known_hosts
-      if: ${{github.event_name == 'push' && github.ref == 'refs/heads/main'}}
-
-    - name: Copy cheatsheets into site directory
-      run: cp doc/cheatsheet/Pandas_Cheat_Sheet* web/build/
-
-    - name: Upload web
-      run: rsync -az --delete --exclude='pandas-docs' --exclude='docs' web/build/ docs@${{ secrets.server_ip }}:/usr/share/nginx/pandas
-      if: ${{github.event_name == 'push' && github.ref == 'refs/heads/main'}}
-
-    - name: Upload dev docs
-      run: rsync -az --delete doc/build/html/ docs@${{ secrets.server_ip }}:/usr/share/nginx/pandas/pandas-docs/dev
-      if: ${{github.event_name == 'push' && github.ref == 'refs/heads/main'}}
-
-    - name: Move docs into site directory
-      run: mv doc/build/html web/build/docs
-
-    - name: Save website as an artifact
-      uses: actions/upload-artifact@v2
-      with:
-        name: website
-        path: web/build
-        retention-days: 14
diff --git a/.github/workflows/posix.yml b/.github/workflows/posix.yml
index 8080a81519d8f..2c0d11f3d75d9 100644
--- a/.github/workflows/posix.yml
+++ b/.github/workflows/posix.yml
@@ -44,7 +44,7 @@ jobs:
       LC_ALL: ${{ matrix.settings[4] }}
       PANDAS_TESTING_MODE: ${{ matrix.settings[5] }}
       TEST_ARGS: ${{ matrix.settings[6] }}
-      PYTEST_TARGET:  pandas
+      PYTEST_TARGET: pandas
       IS_PYPY: ${{ contains(matrix.settings[0], 'pypy') }}
       # TODO: re-enable coverage on pypy, its slow
       COVERAGE: ${{ !contains(matrix.settings[0], 'pypy') }}
@@ -61,9 +61,9 @@ jobs:
           MYSQL_DATABASE: pandas
         options: >-
           --health-cmd "mysqladmin ping"
-          --health-interval 10s
+          --health-interval 5s
           --health-timeout 5s
-          --health-retries 5
+          --health-retries 10
         ports:
           - 3306:3306
 
@@ -75,9 +75,9 @@ jobs:
           POSTGRES_DB: pandas
         options: >-
           --health-cmd pg_isready
-          --health-interval 10s
+          --health-interval 5s
           --health-timeout 5s
-          --health-retries 5
+          --health-retries 10
         ports:
           - 5432:5432
 
@@ -95,41 +95,49 @@ jobs:
       with:
         fetch-depth: 0
 
-    - name: Cache conda
-      uses: actions/cache@v2
-      env:
-        CACHE_NUMBER: 0
+    - name: Setup Mambaforge
+      uses: conda-incubator/setup-miniconda@v2
       with:
-        path: ~/conda_pkgs_dir
-        key: ${{ runner.os }}-conda-${{ env.CACHE_NUMBER }}-${{
-          hashFiles('${{ env.ENV_FILE }}') }}
+        miniforge-variant: Mambaforge
+        miniforge-version: latest
+        activate-environment: pandas-dev
+        channels: conda-forge
+        use-mamba: true
+      if: ${{ env.IS_PYPY == 'false' }} # No pypy3.8 support
 
-    - name: Extra installs
-      run: sudo apt-get update && sudo apt-get install -y libc6-dev-i386 ${{ env.EXTRA_APT }}
+    - name: Get Date
+      id: get-date
+      run: echo "::set-output name=today::$(/bin/date -u '+%Y%m%d')"
+      shell: bash
 
-    - uses: conda-incubator/setup-miniconda@v2
+    - name: Cache Conda
+      id: cache_conda
+      uses: actions/cache@v2
       with:
-        mamba-version: "*"
-        channels: conda-forge
-        activate-environment: pandas-dev
-        channel-priority: flexible
-        environment-file: ${{ env.ENV_FILE }}
-        use-only-tar-bz2: true
+        path: ${{ env.CONDA }}/envs
+        key: conda--${{ runner.os }}--${{ runner.arch }}--${{ steps.get-date.outputs.today }}--${{ env.ENV_FILE }}
       if: ${{ env.IS_PYPY == 'false' }} # No pypy3.8 support
 
-    - name: Setup PyPy
-      uses: actions/setup-python@v2
-      with:
-        python-version: "pypy-3.8"
-      if: ${{ env.IS_PYPY == 'true' }}
+    - name: Update Conda environment
+      run: mamba env update -n pandas-dev -f ${{ env.ENV_FILE }}
+      if: steps.cache_conda.outputs.cache-hit != 'true' && ${{ env.IS_PYPY == 'false' }} # No pypy3.8 support
 
-    - name: Setup PyPy dependencies
-      shell: bash
-      run: |
-        # TODO: re-enable cov, its slowing the tests down though
-        # TODO: Unpin Cython, the new Cython 0.29.26 is causing compilation errors
-        pip install Cython==0.29.25 numpy python-dateutil pytz pytest>=6.0 pytest-xdist>=1.31.0 hypothesis>=5.5.3
-      if: ${{ env.IS_PYPY == 'true' }}
+    - name: Extra installs
+      run: sudo apt-get update && sudo apt-get install -y libc6-dev-i386 ${{ env.EXTRA_APT }}
+
+    # - name: Setup PyPy
+    #   uses: actions/setup-python@v2
+    #   with:
+    #     python-version: "pypy-3.8"
+    #   if: ${{ env.IS_PYPY == 'true' }}
+
+    # - name: Setup PyPy dependencies
+    #   shell: bash
+    #   run: |
+    #     # TODO: re-enable cov, its slowing the tests down though
+    #     # TODO: Unpin Cython, the new Cython 0.29.26 is causing compilation errors
+    #     pip install Cython==0.29.25 numpy python-dateutil pytz pytest>=6.0 pytest-xdist>=1.31.0 hypothesis>=5.5.3
+    #   if: ${{ env.IS_PYPY == 'true' }}
 
     - name: Build Pandas
       uses: ./.github/actions/build_pandas
diff --git a/.github/workflows/python-dev.yml b/.github/workflows/python-dev.yml
deleted file mode 100644
index 988859ca4ac93..0000000000000
--- a/.github/workflows/python-dev.yml
+++ /dev/null
@@ -1,97 +0,0 @@
-# This file is purposely frozen(does not run). DO NOT DELETE IT
-# Unfreeze(by commentingthe if: false() condition) once the
-# next Python Dev version has released beta 1 and both Cython and numpy support it
-# After that Python has released, migrate the workflows to the
-# posix GHA workflows/Azure pipelines and "freeze" this file by
-# uncommenting the if: false() condition
-# Feel free to modify this comment as necessary.
-
-name: Python Dev
-
-on:
-  push:
-    branches:
-      - main
-      - 1.4.x
-  pull_request:
-    branches:
-      - main
-      - 1.4.x
-    paths-ignore:
-      - "doc/**"
-
-env:
-  PYTEST_WORKERS: "auto"
-  PANDAS_CI: 1
-  PATTERN: "not slow and not network and not clipboard"
-  COVERAGE: true
-  PYTEST_TARGET: pandas
-
-jobs:
-  build:
-    if: false # Comment this line out to "unfreeze"
-    runs-on: ${{ matrix.os }}
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, macOS-latest, windows-latest]
-
-    name: actions-311-dev
-    timeout-minutes: 80
-
-    concurrency:
-      #https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-${{ matrix.os }}-${{ matrix.pytest_target }}-dev
-      cancel-in-progress: true
-
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Set up Python Dev Version
-      uses: actions/setup-python@v2
-      with:
-        python-version: '3.11-dev'
-
-    # TODO: GH#44980 https://github.com/pypa/setuptools/issues/2941
-    - name: Install dependencies
-      shell: bash
-      run: |
-        python -m pip install --upgrade pip "setuptools<60.0.0" wheel
-        pip install -i https://pypi.anaconda.org/scipy-wheels-nightly/simple numpy
-        pip install git+https://github.com/nedbat/coveragepy.git
-        pip install cython python-dateutil pytz hypothesis pytest>=6.2.5 pytest-xdist pytest-cov
-        pip list
-
-    - name: Build Pandas
-      run: |
-        python setup.py build_ext -q -j2
-        python -m pip install -e . --no-build-isolation --no-use-pep517
-
-    - name: Build Version
-      run: |
-        python -c "import pandas; pandas.show_versions();"
-
-    - name: Test with pytest
-      shell: bash
-      run: |
-        ci/run_tests.sh
-
-    - name: Publish test results
-      uses: actions/upload-artifact@v2
-      with:
-        name: Test results
-        path: test-data.xml
-      if: failure()
-
-    - name: Report Coverage
-      run: |
-        coverage report -m
-
-    - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v2
-      with:
-        flags: unittests
-        name: codecov-pandas
-        fail_ci_if_error: true
diff --git a/.github/workflows/sdist.yml b/.github/workflows/sdist.yml
deleted file mode 100644
index dd030f1aacc44..0000000000000
--- a/.github/workflows/sdist.yml
+++ /dev/null
@@ -1,83 +0,0 @@
-name: sdist
-
-on:
-  push:
-    branches:
-      - main
-      - 1.4.x
-  pull_request:
-    branches:
-      - main
-      - 1.4.x
-    paths-ignore:
-      - "doc/**"
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    timeout-minutes: 60
-    defaults:
-      run:
-        shell: bash -l {0}
-
-    strategy:
-      fail-fast: false
-      matrix:
-        python-version: ["3.8", "3.9", "3.10"]
-    concurrency:
-      # https://github.community/t/concurrecy-not-work-for-push/183068/7
-      group: ${{ github.event_name == 'push' && github.run_number || github.ref }}-${{matrix.python-version}}-sdist
-      cancel-in-progress: true
-
-    steps:
-    - uses: actions/checkout@v2
-      with:
-        fetch-depth: 0
-
-    - name: Set up Python
-      uses: actions/setup-python@v2
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    # TODO: GH#44980 https://github.com/pypa/setuptools/issues/2941
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip "setuptools<60.0.0" wheel
-
-        # GH 39416
-        pip install numpy
-
-    - name: Build pandas sdist
-      run: |
-        pip list
-        python setup.py sdist --formats=gztar
-
-    - uses: conda-incubator/setup-miniconda@v2
-      with:
-        activate-environment: pandas-sdist
-        channels: conda-forge
-        python-version: '${{ matrix.python-version }}'
-
-    # TODO: GH#44980 https://github.com/pypa/setuptools/issues/2941
-    - name: Install pandas from sdist
-      run: |
-        python -m pip install --upgrade "setuptools<60.0.0"
-        pip list
-        python -m pip install dist/*.gz
-
-    - name: Force oldest supported NumPy
-      run: |
-        case "${{matrix.python-version}}" in
-        3.8)
-          pip install numpy==1.18.5 ;;
-        3.9)
-          pip install numpy==1.19.3 ;;
-        3.10)
-          pip install numpy==1.21.2 ;;
-        esac
-
-    - name: Import pandas
-      run: |
-        cd ..
-        conda list
-        python -c "import pandas; pandas.show_versions();"
diff --git a/.github/workflows/stale-pr.yml b/.github/workflows/stale-pr.yml
deleted file mode 100644
index b97b60717a2b8..0000000000000
--- a/.github/workflows/stale-pr.yml
+++ /dev/null
@@ -1,21 +0,0 @@
-name: "Stale PRs"
-on:
-  schedule:
-  # * is a special character in YAML so you have to quote this string
-  - cron: "0 0 * * *"
-
-jobs:
-  stale:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/stale@v4
-      with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-pr-message: "This pull request is stale because it has been open for thirty days with no activity. Please [update](https://pandas.pydata.org/pandas-docs/stable/development/contributing.html#updating-your-pull-request) and respond to this comment if you're still interested in working on this."
-        stale-pr-label: "Stale"
-        exempt-pr-labels: "Needs Review,Blocked,Needs Discussion"
-        days-before-issue-stale: -1
-        days-before-pr-stale: 30
-        days-before-close: -1
-        remove-stale-when-updated: false
-        debug-only: false
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
deleted file mode 100644
index 1e2556f521225..0000000000000
--- a/azure-pipelines.yml
+++ /dev/null
@@ -1,58 +0,0 @@
-# Adapted from https://github.com/numba/numba/blob/master/azure-pipelines.yml
-trigger:
-  branches:
-    include:
-    - main
-    - 1.4.x
-  paths:
-    exclude:
-    - 'doc/**'
-
-pr:
-  autoCancel: true
-  branches:
-    include:
-    - main
-    - 1.4.x
-
-variables:
-  PYTEST_WORKERS: auto
-  PYTEST_TARGET:  pandas
-
-jobs:
-# Mac and Linux use the same template
-- template: ci/azure/posix.yml
-  parameters:
-    name: macOS
-    vmImage: macOS-10.15
-
-- template: ci/azure/windows.yml
-  parameters:
-    name: Windows
-    vmImage: windows-2019
-
-- job: py38_32bit
-  pool:
-    vmImage: ubuntu-18.04
-
-  steps:
-    # TODO: GH#44980 https://github.com/pypa/setuptools/issues/2941
-    - script: |
-        docker pull quay.io/pypa/manylinux2014_i686
-        docker run -v $(pwd):/pandas quay.io/pypa/manylinux2014_i686 \
-        /bin/bash -xc "cd pandas && \
-        /opt/python/cp38-cp38/bin/python -m venv ~/virtualenvs/pandas-dev && \
-        . ~/virtualenvs/pandas-dev/bin/activate && \
-        python -m pip install --no-deps -U pip wheel 'setuptools<60.0.0' && \
-        pip install cython numpy python-dateutil pytz pytest pytest-xdist hypothesis pytest-azurepipelines && \
-        python setup.py build_ext -q -j2 && \
-        python -m pip install --no-build-isolation -e . && \
-        pytest -m 'not slow and not network and not clipboard' pandas --junitxml=test-data.xml"
-      displayName: 'Run 32-bit manylinux2014 Docker Build / Tests'
-
-    - task: PublishTestResults@2
-      condition: succeededOrFailed()
-      inputs:
-        testResultsFiles: '**/test-*.xml'
-        failTaskOnFailedTests: true
-        testRunTitle: 'Publish test results for Python 3.8-32 bit full Linux'