diff --git a/.github/workflows/lint-and-test.yml b/.github/workflows/lint-and-test.yml
index 1ea274a..00b25ce 100644
--- a/.github/workflows/lint-and-test.yml
+++ b/.github/workflows/lint-and-test.yml
@@ -17,11 +17,12 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - '3.8'
           - '3.9'
           - '3.10'
           - '3.11'
           - '3.12'
+          - '3.13'
+          - '3.14'
           - 'pypy-3.9'
           - 'pypy-3.10'
     steps:
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index a640a82..a6378cb 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,17 @@
 Changelog
 =========
 
+Version 0.31.3 (IN DEVELOPMENT)
+-------------------------------
+
+Backward incompatible changes:
+
+- Dropped support for Python 3.8.
+
+Enhancements:
+
+- Added support for Python 3.14.
+
 Version 0.31.3 (2024-07-13)
 ---------------------------
 
diff --git a/docs/index.rst b/docs/index.rst
index ffe657b..780ab16 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -4,7 +4,7 @@ Dependencies
 ------------
 
 The `argh` library is supported (and tested unless otherwise specified)
-on the following versions of Python: 3.8, 3.9, 3.10, 3.11, 3.12, 3.13.
+on the following versions of Python: 3.9, 3.10, 3.11, 3.12, 3.13, 3.14.
 
 If you need support for ancient Pythons, please use the following versions
 of Argh (the numeric puns were semi-intentional):
diff --git a/pyproject.toml b/pyproject.toml
index 83e4761..3de7fa7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ name = "argh"
 version = "0.31.3"
 description = "Plain Python functions as CLI commands without boilerplate"
 readme = "README.rst"
-requires-python = ">=3.8"
+requires-python = ">=3.9"
 license = { file = "COPYING.LESSER" }
 authors = [
   { name = "Andy Mikhaylenko", email = "neithere@gmail.com" },
@@ -31,12 +31,12 @@ classifiers  = [
   "License :: OSI Approved :: GNU Library or Lesser General Public License (LGPL)",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3",
-  "Programming Language :: Python :: 3.8",
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Programming Language :: Python :: Implementation :: CPython",
   "Programming Language :: Python :: Implementation :: PyPy",
   "Topic :: Software Development :: User Interfaces",
diff --git a/tests/base.py b/tests/base.py
index 7710443..a031f25 100644
--- a/tests/base.py
+++ b/tests/base.py
@@ -4,8 +4,6 @@
 """
 
 import io
-import os
-import sys
 from collections import namedtuple
 
 from argh import ArghParser
@@ -72,8 +70,3 @@ def run(parser, command_string, kwargs=None, exit=False):
             raise AssertionError("Did not exit")
         return result.exit_code
     return result
-
-
-def get_usage_string(definitions="{cmd} ..."):
-    prog = os.path.basename(sys.argv[0])
-    return "usage: " + prog + " [-h] " + definitions + "\n\n"
diff --git a/tests/test_integration.py b/tests/test_integration.py
index 8839265..6fc8a17 100644
--- a/tests/test_integration.py
+++ b/tests/test_integration.py
@@ -17,7 +17,7 @@
 from argh.utils import unindent
 
 from .base import CmdResult as R
-from .base import DebugArghParser, get_usage_string, run
+from .base import DebugArghParser, run
 
 if sys.version_info < (3, 10):
     HELP_OPTIONS_LABEL = "optional arguments"
@@ -796,11 +796,17 @@ def func():
     parser = DebugArghParser()
     parser.set_default_command(func)
 
-    assert unindent(func.__doc__) in parser.format_help()
+    docstring = func.__doc__
+    assert docstring
+    assert unindent(docstring) in parser.format_help()
 
 
 def test_prog(capsys: pytest.CaptureFixture[str]):
-    "Program name propagates from sys.argv[0]"
+    """
+    Program name propagates to the usage string.
+    It's not just sys.argv[0], the logic is a bit more complicated in argparse,
+    so we just reuse whatever it has produced.
+    """
 
     def cmd(*, foo=1):
         return foo
@@ -808,10 +814,12 @@ def cmd(*, foo=1):
     parser = DebugArghParser()
     parser.add_commands([cmd])
 
-    usage = get_usage_string()
+    usage = f"usage: {parser.prog} [-h]"
 
-    assert run(parser, "-h", exit=True) == 0
+    exit_code = run(parser, "-h", exit=True)
     captured = capsys.readouterr()
+
+    assert exit_code == 0
     assert captured.out.startswith(usage)
 
 
@@ -822,8 +830,6 @@ def cmd(*, foo=1):
     parser = DebugArghParser()
     parser.set_default_command(cmd)
 
-    get_usage_string("[-f FOO]")
-
     assert run(parser, "--foo 1") == R(out="1\n", err="")
     assert run(parser, "--bar 1", exit=True) == "unrecognized arguments: --bar 1"
     assert run(parser, "--bar 1", exit=False, kwargs={"skip_unknown_args": True}) == R(
diff --git a/tests/test_mapping_policies.py b/tests/test_mapping_policies.py
index e77e122..b704733 100644
--- a/tests/test_mapping_policies.py
+++ b/tests/test_mapping_policies.py
@@ -1,4 +1,3 @@
-import sys
 from argparse import ArgumentParser, Namespace
 from typing import Callable, List, Optional
 
@@ -75,11 +74,6 @@ def func(*file_paths) -> str:
     parser = _make_parser_for_function(func, name_mapping_policy=name_mapping_policy)
     expected_usage = "usage: test [-h] [file-paths ...]"
 
-    # TODO: remove once we drop support for Python 3.8
-    if sys.version_info < (3, 9):
-        # https://github.com/python/cpython/issues/82619
-        expected_usage = "usage: test [-h] [file-paths [file-paths ...]]"
-
     assert_usage(parser, expected_usage)
 
 
diff --git a/tox.ini b/tox.ini
index 52615c0..afab154 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,13 +1,12 @@
 [tox]
 envlist =
-    py38
     py39
     py310
     py311
     py312
     py313
+    py314
     pypy3
-    as-module
     lint
     docs
 skipdist = true
@@ -17,12 +16,12 @@ skip_missing_interpreters = true
 [gh-actions]
 # https://github.com/ymyzk/tox-gh-actions
 python =
-    3.8: py38
     3.9: py39
     3.10: py310
     3.11: py311,lint,as-module
     3.12: py312
     3.13: py313
+    3.14: py314
     pypy-3.9: pypy3
     pypy-3.10: pypy3
 
@@ -30,15 +29,10 @@ python =
 description = run unit tests
 extras = test
 commands =
-    pytest --cov=argh --cov-report html --cov-fail-under 100 {posargs:tests}
+    python -m pytest --cov=argh --cov-report html --cov-fail-under 100 {posargs:tests}
 setenv =
     PYTHONPATH=src
 
-[testenv:as-module]
-description = run unit tests, ensure they don't depend on specific prog name
-commands =
-    python -m pytest {posargs:tests}
-
 [testenv:docs]
 description = build the HTML docs using sphinx-build
 extras = docs