diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9432dbb01..bb8fbd3d8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -38,7 +38,6 @@ jobs:
           job_cache_extra_deps=(); job_id=test_linux; job_name='Test (Linux)'; job_needs=(); job_os=Linux; job_platform=ubuntu-22.04; job_python=3.9; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_linux_py-3.9_ubuntu-22.04; job_skip_cache_path=.skip_cache_test_linux; job_skiplists=(job_test os_linux); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant=Linux; analyze_set_job_skip_cache_key
           job_cache_extra_deps=(osx/deps.sh); job_id=test_macos; job_name='Test (macOS)'; job_needs=(); job_os=macOS; job_platform=macos-12; job_python=3.9; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_macos_py-3.9_macos-12; job_skip_cache_path=.skip_cache_test_macos; job_skiplists=(job_test os_macos); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant=macOS; analyze_set_job_skip_cache_key
           job_cache_extra_deps=(); job_id=test_windows; job_name='Test (Windows)'; job_needs=(); job_os=Windows; job_platform=windows-2022; job_python=3.9; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_windows_py-3.9_windows-2022; job_skip_cache_path=.skip_cache_test_windows; job_skiplists=(job_test os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant=Windows; analyze_set_job_skip_cache_key
-          job_cache_extra_deps=(); job_id=test_python_37; job_name='Test (Python 3.7)'; job_needs=(); job_os=Linux; job_platform=ubuntu-latest; job_python=3.7; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_python_37_py-3.7_ubuntu-latest; job_skip_cache_path=.skip_cache_test_python_37; job_skiplists=(job_test os_linux os_macos os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant='Python 3.7'; analyze_set_job_skip_cache_key
           job_cache_extra_deps=(); job_id=test_python_38; job_name='Test (Python 3.8)'; job_needs=(); job_os=Linux; job_platform=ubuntu-latest; job_python=3.8; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_python_38_py-3.8_ubuntu-latest; job_skip_cache_path=.skip_cache_test_python_38; job_skiplists=(job_test os_linux os_macos os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant='Python 3.8'; analyze_set_job_skip_cache_key
           job_cache_extra_deps=(); job_id=test_python_310; job_name='Test (Python 3.10)'; job_needs=(); job_os=Linux; job_platform=ubuntu-latest; job_python=3.10; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_python_310_py-3.10_ubuntu-latest; job_skip_cache_path=.skip_cache_test_python_310; job_skiplists=(job_test os_linux os_macos os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant='Python 3.10'; analyze_set_job_skip_cache_key
           job_cache_extra_deps=(); job_id=test_qt_gui; job_name='Test (Qt GUI)'; job_needs=(); job_os=Linux; job_platform=ubuntu-22.04; job_python=3.9; job_reqs=(reqs/dist.txt reqs/dist_extra_gui_qt.txt reqs/test.txt); job_skip_cache_name=skip_test_qt_gui_py-3.9_ubuntu-22.04; job_skip_cache_path=.skip_cache_test_qt_gui; job_skiplists=(job_test_gui_qt); job_test_args=test/gui_qt; job_type=test_gui_qt; job_variant='Qt GUI'; analyze_set_job_skip_cache_key
@@ -71,14 +70,6 @@ jobs:
           restore-keys:
             0_${{ steps.set_cache.outputs.test_windows_skip_cache_key }}
 
-      - name: Check skip cache for Test (Python 3.7)
-        uses: actions/cache@v3
-        with:
-          path: .skip_cache_test_python_37
-          key: 0_check_${{ steps.set_cache.outputs.test_python_37_skip_cache_key }}_${{ github.run_id }}
-          restore-keys:
-            0_${{ steps.set_cache.outputs.test_python_37_skip_cache_key }}
-
       - name: Check skip cache for Test (Python 3.8)
         uses: actions/cache@v3
         with:
@@ -144,7 +135,6 @@ jobs:
           job_cache_extra_deps=(); job_id=test_linux; job_name='Test (Linux)'; job_needs=(); job_os=Linux; job_platform=ubuntu-22.04; job_python=3.9; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_linux_py-3.9_ubuntu-22.04; job_skip_cache_path=.skip_cache_test_linux; job_skiplists=(job_test os_linux); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant=Linux; analyze_set_job_skip_job
           job_cache_extra_deps=(osx/deps.sh); job_id=test_macos; job_name='Test (macOS)'; job_needs=(); job_os=macOS; job_platform=macos-12; job_python=3.9; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_macos_py-3.9_macos-12; job_skip_cache_path=.skip_cache_test_macos; job_skiplists=(job_test os_macos); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant=macOS; analyze_set_job_skip_job
           job_cache_extra_deps=(); job_id=test_windows; job_name='Test (Windows)'; job_needs=(); job_os=Windows; job_platform=windows-2022; job_python=3.9; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_windows_py-3.9_windows-2022; job_skip_cache_path=.skip_cache_test_windows; job_skiplists=(job_test os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant=Windows; analyze_set_job_skip_job
-          job_cache_extra_deps=(); job_id=test_python_37; job_name='Test (Python 3.7)'; job_needs=(); job_os=Linux; job_platform=ubuntu-latest; job_python=3.7; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_python_37_py-3.7_ubuntu-latest; job_skip_cache_path=.skip_cache_test_python_37; job_skiplists=(job_test os_linux os_macos os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant='Python 3.7'; analyze_set_job_skip_job
           job_cache_extra_deps=(); job_id=test_python_38; job_name='Test (Python 3.8)'; job_needs=(); job_os=Linux; job_platform=ubuntu-latest; job_python=3.8; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_python_38_py-3.8_ubuntu-latest; job_skip_cache_path=.skip_cache_test_python_38; job_skiplists=(job_test os_linux os_macos os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant='Python 3.8'; analyze_set_job_skip_job
           job_cache_extra_deps=(); job_id=test_python_310; job_name='Test (Python 3.10)'; job_needs=(); job_os=Linux; job_platform=ubuntu-latest; job_python=3.10; job_reqs=(reqs/dist.txt reqs/test.txt); job_skip_cache_name=skip_test_python_310_py-3.10_ubuntu-latest; job_skip_cache_path=.skip_cache_test_python_310; job_skiplists=(job_test os_linux os_macos os_windows); job_test_args='-p no:pytest-qt --ignore=test/gui_qt'; job_type=test; job_variant='Python 3.10'; analyze_set_job_skip_job
           job_cache_extra_deps=(); job_id=test_qt_gui; job_name='Test (Qt GUI)'; job_needs=(); job_os=Linux; job_platform=ubuntu-22.04; job_python=3.9; job_reqs=(reqs/dist.txt reqs/dist_extra_gui_qt.txt reqs/test.txt); job_skip_cache_name=skip_test_qt_gui_py-3.9_ubuntu-22.04; job_skip_cache_path=.skip_cache_test_qt_gui; job_skiplists=(job_test_gui_qt); job_test_args=test/gui_qt; job_type=test_gui_qt; job_variant='Qt GUI'; analyze_set_job_skip_job
@@ -162,8 +152,6 @@ jobs:
       test_macos_skip_cache_key: ${{ steps.set_cache.outputs.test_macos_skip_cache_key }}
       test_windows_skip_job: ${{ steps.set_ouputs.outputs.test_windows_skip_job }}
       test_windows_skip_cache_key: ${{ steps.set_cache.outputs.test_windows_skip_cache_key }}
-      test_python_37_skip_job: ${{ steps.set_ouputs.outputs.test_python_37_skip_job }}
-      test_python_37_skip_cache_key: ${{ steps.set_cache.outputs.test_python_37_skip_cache_key }}
       test_python_38_skip_job: ${{ steps.set_ouputs.outputs.test_python_38_skip_job }}
       test_python_38_skip_cache_key: ${{ steps.set_cache.outputs.test_python_38_skip_cache_key }}
       test_python_310_skip_job: ${{ steps.set_ouputs.outputs.test_python_310_skip_job }}
@@ -353,62 +341,6 @@ jobs:
         run: list_cache
   # }}}
 
-  # Job: Test (Python 3.7) {{{
-  test_python_37:
-
-    name: Test (Python 3.7)
-    runs-on: ubuntu-latest
-    needs: [analyze, ]
-    if: >-
-      !cancelled()
-      && needs.analyze.outputs.test_python_37_skip_job == 'no'
-
-    steps:
-
-      - name: Checkout
-        uses: actions/checkout@v3
-
-      - name: Setup Python
-        uses: actions/setup-python@v4
-        with:
-          python-version: '3.7'
-
-      - name: Set cache name
-        id: set_cache
-        run: setup_cache_name '3.7' 'ubuntu-latest'
-
-      - name: Setup cache
-        uses: actions/cache@v3
-        with:
-          path: .cache
-          key: 0_${{ steps.set_cache.outputs.cache_name }}_${{ hashFiles('reqs/constraints.txt', 'reqs/dist.txt', 'reqs/test.txt') }}
-
-      - name: Setup pip options
-        run: setup_pip_options
-
-      - name: Setup Python environment
-        run: setup_python_env -c reqs/constraints.txt -r reqs/dist.txt -r reqs/test.txt
-      # Test {{{
-
-      - name: Run tests
-        run: run_tests -p no:pytest-qt --ignore=test/gui_qt
-
-
-      # }}}
-
-      - name: Update skip cache 1
-        uses: actions/cache@v3
-        with:
-          path: .skip_cache_test_python_37
-          key: 0_${{ needs.analyze.outputs.test_python_37_skip_cache_key }}
-
-      - name: Update skip cache 2
-        run: run_eval "echo 'https://github.com/$GITHUB_REPOSITORY/actions/runs/$GITHUB_RUN_ID' >'.skip_cache_test_python_37'"
-
-      - name: List cache contents
-        run: list_cache
-  # }}}
-
   # Job: Test (Python 3.8) {{{
   test_python_38:
 
@@ -904,13 +836,12 @@ jobs:
     name: Release
     environment: release
     runs-on: ubuntu-latest
-    needs: [analyze, test_linux, test_macos, test_windows, test_python_37, test_python_38, test_python_310, test_qt_gui, test_packaging, build_linux, build_macos, build_windows]
+    needs: [analyze, test_linux, test_macos, test_windows, test_python_38, test_python_310, test_qt_gui, test_packaging, build_linux, build_macos, build_windows]
     if: >-
       !cancelled()
       && needs.test_linux.result == 'success'
       && needs.test_macos.result == 'success'
       && needs.test_windows.result == 'success'
-      && needs.test_python_37.result == 'success'
       && needs.test_python_38.result == 'success'
       && needs.test_python_310.result == 'success'
       && needs.test_qt_gui.result == 'success'
diff --git a/.github/workflows/ci/workflow_context.yml b/.github/workflows/ci/workflow_context.yml
index 86be24e3e..c80d52e3d 100644
--- a/.github/workflows/ci/workflow_context.yml
+++ b/.github/workflows/ci/workflow_context.yml
@@ -11,19 +11,19 @@ skippy_enabled: true
 vars:
   - &dist_linux
     variant: Linux
-    python: '3.9'
+    python: "3.9"
     os: Linux
     platform: ubuntu-22.04
 
   - &dist_macos
     variant: macOS
-    python: '3.9'
+    python: "3.9"
     os: macOS
     platform: macos-12
 
   - &dist_win
     variant: Windows
-    python: '3.9'
+    python: "3.9"
     os: Windows
     platform: windows-2022
 
@@ -32,67 +32,63 @@ vars:
     platform: ubuntu-latest
 
 jobs:
-
   # Platform tests.
   - &test
     <<: *dist_linux
     type: test
-    reqs: ['dist', 'test']
-    skiplists: ['job_test', 'os_linux']
+    reqs: ["dist", "test"]
+    skiplists: ["job_test", "os_linux"]
     test_args: -p no:pytest-qt --ignore=test/gui_qt
   - <<: *test
     <<: *dist_macos
-    cache_extra_deps: ['osx/deps.sh']
-    skiplists: ['job_test', 'os_macos']
+    cache_extra_deps: ["osx/deps.sh"]
+    skiplists: ["job_test", "os_macos"]
   - <<: *test
     <<: *dist_win
-    skiplists: ['job_test', 'os_windows']
+    skiplists: ["job_test", "os_windows"]
 
   # Python tests.
   - &python_test
     <<: *test
     <<: *dist_other
-    variant: Python 3.7
-    python: '3.7'
-    skiplists: ['job_test', 'os_linux', 'os_macos', 'os_windows']
-  - <<: *python_test
     variant: Python 3.8
-    python: '3.8'
+    python: "3.8"
+    skiplists: ["job_test", "os_linux", "os_macos", "os_windows"]
   - <<: *python_test
     variant: Python 3.10
-    python: '3.10'
+    python: "3.10"
 
   # Qt GUI tests.
   - <<: *test
     type: test_gui_qt
     variant: Qt GUI
-    reqs: ['dist', 'dist_extra_gui_qt', 'test']
-    skiplists: ['job_test_gui_qt']
+    reqs: ["dist", "dist_extra_gui_qt", "test"]
+    skiplists: ["job_test_gui_qt"]
     test_args: test/gui_qt
 
   # Packaging tests.
   - <<: *dist_other
     type: test_packaging
     variant: Packaging
-    python: '3.9'
-    reqs: ['packaging', 'setup']
-    skiplists: ['job_test_packaging']
+    python: "3.9"
+    reqs: ["packaging", "setup"]
+    skiplists: ["job_test_packaging"]
 
   # Platform builds.
   - &build
     <<: *dist_linux
     type: build
     needs: [test_linux]
-    reqs: ['build', 'setup']
-    cache_extra_deps: ['reqs/dist_*.txt', 'linux/appimage/deps.sh']
-    skiplists: ['job_build', 'os_linux']
+    reqs: ["build", "setup"]
+    cache_extra_deps: ["reqs/dist_*.txt", "linux/appimage/deps.sh"]
+    skiplists: ["job_build", "os_linux"]
   - <<: *build
     <<: *dist_macos
     needs: [test_macos]
-    cache_extra_deps: ['reqs/dist_*.txt', 'osx/deps.sh']
-    skiplists: ['job_build', 'os_macos']
+    cache_extra_deps: ["reqs/dist_*.txt", "osx/deps.sh"]
+    skiplists: ["job_build", "os_macos"]
   - <<: *build
     <<: *dist_win
     needs: [test_windows]
-    cache_extra_deps: ['reqs/dist_*.txt', 'windows/dist_deps.sh']
-    skiplists: ['job_build', 'os_windows']
+    cache_extra_deps: ["reqs/dist_*.txt", "windows/dist_deps.sh"]
+    skiplists: ["job_build", "os_windows"]
diff --git a/doc/developer_guide.md b/doc/developer_guide.md
index 0f8c37b92..108063bc6 100644
--- a/doc/developer_guide.md
+++ b/doc/developer_guide.md
@@ -1,6 +1,6 @@
 # Environment setup
 
-You need Python >= 3.7 installed, and you need [tox](https://pypi.org/project/tox/) >= 4.0.
+You need Python >= 3.8 installed, and you need [tox](https://pypi.org/project/tox/) >= 4.0.
 
 Using tox takes care of all the details of creating and managing an isolated
 virtual environment, installing the necessary dependencies, and isolating
@@ -10,12 +10,13 @@ The command for using tox is: `tox r {-e envlist} {-- arguments}`. Use `tox -a
 -v` to get a list of available environments.
 
 The same virtual environment is reused by the following tox environments:
+
 - `tox r -e test -- ARGS`: run the testsuite. This is the default environment
   when not provided.
 - `tox r -e launch -- ARGS`: run Plover from source.
 - `tox r -e setup -- COMMAND`: run `./setup.py COMMAND`.
 - `tox r -e packaging_checks`: run the same packaging checks as the CI (add `--
-  -n` to see a dry-run of the exact checks).
+-n` to see a dry-run of the exact checks).
 - `tox r -e plugins_install`: install the distribution plugins (or the specified
   plugins when run with `tox -e plugins_install -- REQS`). Note that this does
   not use the plugins manager for installing.
@@ -30,11 +31,10 @@ The actual virtual environment lives in `.tox/dev`, and can be ["activated" like
 any other virtual environment](https://virtualenv.pypa.io/en/latest/user_guide.html#activators).
 
 The configuration also provides support for lightweight tests only environment:
-`pyX`, where `X` is the version of the Python interpreter to use.  E.g. running
+`pyX`, where `X` is the version of the Python interpreter to use. E.g. running
 `tox r -e 'py3,py36,py37,py38,py39` will execute the testsuite for each version of Python we
 support.
 
-
 # Creating a binary distribution
 
 A number of commands are provided by `setup.py` for creating binary
@@ -47,7 +47,6 @@ distributions (which include all the necessary dependencies):
 
 Use `bdist_xxx --help` to get more information on each command supported options.
 
-
 # Making a pull request
 
 When making a pull request, please include a short summary of the changes
@@ -63,7 +62,7 @@ description of the substantive changes in the PR.
 They should be named `<section>/<pr_number>.<category>.md`, where the sections
 / categories are:
 
-* `feature`: New features:
+- `feature`: New features:
 
   - `core`: Core changes.
   - `dict`: Updates to the default dictionaries.
@@ -72,9 +71,9 @@ They should be named `<section>/<pr_number>.<category>.md`, where the sections
   - `osx`: macOS specific changes.
   - `windows`: Windows specific changes.
 
-* `bugfix`: For bugfixes, support the same categories as for `feature`.
+- `bugfix`: For bugfixes, support the same categories as for `feature`.
 
-* `api`: For documenting changes to the public/plugins API:
+- `api`: For documenting changes to the public/plugins API:
 
   - `break`: For breaking (backward incompatible) changes.
   - `dnr`: For deprecations of an existing feature or behavior.
@@ -86,7 +85,7 @@ case two fragments should be added. It is not necessary to make a separate
 documentation fragment for documentation changes accompanying the relevant
 code changes. See the following for an example news fragment:
 
-``` bash
+```bash
 $ cat news.d/bugfix/1041.ui.md
 Fix possible crash when changing machine parameters in the configuration dialog.
 ```
diff --git a/news.d/api/1634.break.md b/news.d/api/1634.break.md
new file mode 100644
index 000000000..3cb186bf8
--- /dev/null
+++ b/news.d/api/1634.break.md
@@ -0,0 +1 @@
+Dropped support for Python 3.7.
diff --git a/reqs/test.txt b/reqs/test.txt
index 18b60b78d..2ec35ce50 100644
--- a/reqs/test.txt
+++ b/reqs/test.txt
@@ -1,4 +1,3 @@
-mock>=3.0.0; python_version <= "3.7"
 pytest
 pytest-qt
 
diff --git a/setup.cfg b/setup.cfg
index 8a1ef9c3e..0ed0a2eee 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,7 +5,6 @@ maintainer = Ted Morin
 maintainer_email = morinted@gmail.com
 classifiers =
         Programming Language :: Python :: 3
-        Programming Language :: Python :: 3.7
         Programming Language :: Python :: 3.8
         Programming Language :: Python :: 3.9
         Programming Language :: Python :: 3.10
@@ -32,7 +31,7 @@ project_urls =
 
 [options]
 include_package_data = True
-python_requires = >=3.7
+python_requires = >=3.8
 zip_safe = True
 packages =
 	plover