21.6 Changelog, release version, and deprecations (#2172)

* Changelog and version

* Rearrange API docs for easier navigation

* Version 21.6 docs

* Change release workflow

* Disable Windows tests

.github/workflows/pr-windows.yml

@@ -1,34 +1,34 @@
-name: Run Unit Tests on Windows
-on:
-  pull_request:
-    branches:
-      - main
+# name: Run Unit Tests on Windows
+# on:
+#   pull_request:
+#     branches:
+#       - main
 
-jobs:
-  testsOnWindows:
-    name: ut-${{ matrix.config.tox-env }}
-    runs-on: windows-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        config:
-          - { python-version: 3.7, tox-env: py37-no-ext }
-          - { python-version: 3.8, tox-env: py38-no-ext }
-          - { python-version: 3.9, tox-env: py39-no-ext }
-          - { python-version: pypy-3.7, tox-env: pypy37-no-ext }
+# jobs:
+#   testsOnWindows:
+#     name: ut-${{ matrix.config.tox-env }}
+#     runs-on: windows-latest
+#     strategy:
+#       fail-fast: false
+#       matrix:
+#         config:
+#           - { python-version: 3.7, tox-env: py37-no-ext }
+#           - { python-version: 3.8, tox-env: py38-no-ext }
+#           - { python-version: 3.9, tox-env: py39-no-ext }
+#           - { python-version: pypy-3.7, tox-env: pypy37-no-ext }
 
-    steps:
-      - name: Checkout Repository
-        uses: actions/checkout@v2
+#     steps:
+#       - name: Checkout Repository
+#         uses: actions/checkout@v2
 
-      - name: Run Unit Tests
-        uses: ahopkins/custom-actions@pip-extra-args
-        with:
-          python-version: ${{ matrix.config.python-version }}
-          test-infra-tool: tox
-          test-infra-version: latest
-          action: tests
-          test-additional-args: "-e=${{ matrix.config.tox-env }}"
-          experimental-ignore-error: "true"
-          command-timeout: "600000"
-          pip-extra-args: "--user"
+#       - name: Run Unit Tests
+#         uses: ahopkins/custom-actions@pip-extra-args
+#         with:
+#           python-version: ${{ matrix.config.python-version }}
+#           test-infra-tool: tox
+#           test-infra-version: latest
+#           action: tests
+#           test-additional-args: "-e=${{ matrix.config.tox-env }}"
+#           experimental-ignore-error: "true"
+#           command-timeout: "600000"
+#           pip-extra-args: "--user"