From 1ca7c795bef328fd2da58ae54385c1260a325aa2 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 15:05:57 +0200
Subject: [PATCH 1/8] Drop support for EOL Python 3.10

---
 .github/workflows/main.yml       |  2 +-
 doc/changelog.rst                |  7 ++++++-
 pyperformance/_pyproject_toml.py |  6 +-----
 pyperformance/tests/test_venv.py | 11 ++++-------
 pyproject.toml                   |  9 +++------
 requirements.in                  |  1 -
 tox.ini                          |  1 -
 7 files changed, 15 insertions(+), 22 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index a38b706a..981557b9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -21,7 +21,7 @@ jobs:
       matrix:
         # Test all supported versions on Ubuntu:
         os: [ubuntu-latest, ubuntu-24.04-arm]
-        python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python: ["3.11", "3.12", "3.13", "3.14"]
         experimental: [false]
         build: ['']
         include:
diff --git a/doc/changelog.rst b/doc/changelog.rst
index 8735b3bb..73596082 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -1,7 +1,12 @@
 Changelog
 =========
 
-Version 1.14.0
+Version 1.15.0 (unreleased)
+--------------
+
+* Drop support for Python 3.10
+
+Version 1.14.0 (2026-02-07)
 --------------
 * Bump ``pyperf`` to 2.10.0
 * Add base64 module benchmark (b64, b32, b16, a85, b85)
diff --git a/pyperformance/_pyproject_toml.py b/pyperformance/_pyproject_toml.py
index 40b26e82..17d4afd4 100644
--- a/pyperformance/_pyproject_toml.py
+++ b/pyperformance/_pyproject_toml.py
@@ -12,6 +12,7 @@
 
 import os.path
 import re
+import tomllib
 import urllib.parse
 
 import packaging.requirements
@@ -19,11 +20,6 @@
 import packaging.utils
 import packaging.version
 
-try:
-    import tomllib  # type: ignore[import-not-found] # tomllib doesn't exist on 3.7-3.10
-except ImportError:
-    import tomli as tomllib
-
 from ._utils import check_name
 
 NAME_RE = re.compile("^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$", re.IGNORECASE)
diff --git a/pyperformance/tests/test_venv.py b/pyperformance/tests/test_venv.py
index 3e0a6800..31912579 100644
--- a/pyperformance/tests/test_venv.py
+++ b/pyperformance/tests/test_venv.py
@@ -16,8 +16,6 @@ def new_venv_config(
     system_site_packages=False,
     executable=None,
     command=None,
-    *,
-    old=sys.version_info < (3, 11),
 ):
     if not home:
         home = os.path.dirname(sys.executable)
@@ -26,11 +24,10 @@ def new_venv_config(
     if not isinstance(system_site_packages, str):
         system_site_packages = "true" if system_site_packages else "false"
     system_site_packages = system_site_packages == "true"
-    if not old:
-        if executable is None:
-            executable = sys.executable
-        if command is None:
-            command = f"{executable} -m venv {root}"
+    if executable is None:
+        executable = sys.executable
+    if command is None:
+        command = f"{executable} -m venv {root}"
     return types.SimpleNamespace(
         home=home,
         version=version,
diff --git a/pyproject.toml b/pyproject.toml
index 177d3c73..46df93f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,7 @@ description = "Python benchmark suite"
 readme = "README.rst"
 license = { text = "MIT" }
 authors = [ { name = "Collin Winter" }, { name = "Jeffrey Yasskin" } ]
-requires-python = ">=3.10"
+requires-python = ">=3.11"
 classifiers = [
   "Development Status :: 5 - Production/Stable",
   "Intended Audience :: Developers",
@@ -55,7 +55,6 @@ classifiers = [
   "Operating System :: OS Independent",
   "Programming Language :: Python",
   "Programming Language :: Python :: 3 :: Only",
-  "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
@@ -65,11 +64,9 @@ dynamic = [ "version" ]
 dependencies = [
   "packaging",
   "pyperf",
-  "tomli; python_version<'3.11'",
 ]
 optional-dependencies.dev = [
   "mypy==2.3.1",
-  "tomli",       # Needed even on 3.11+ for typechecking with mypy
   "tox",
 ]
 urls = { Homepage = "https://github.com/python/pyperformance" }
@@ -81,7 +78,7 @@ dynamic.version = { attr = "pyperformance.__version__" }
 packages.find = {}  # Scanning implicit namespaces is active by default
 
 [tool.ruff]
-target-version = "py310"
+target-version = "py311"
 exclude = [
   "pyperformance/data-files/",
 ]
@@ -102,7 +99,7 @@ lint.ignore = [
 max_supported_python = "3.14"
 
 [tool.mypy]
-python_version = "3.10"
+python_version = "3.11"
 pretty = true
 enable_error_code = "ignore-without-code"
 disallow_any_generics = true
diff --git a/requirements.in b/requirements.in
index 55f432ef..04abf276 100644
--- a/requirements.in
+++ b/requirements.in
@@ -13,7 +13,6 @@ pyperf
 
 # for benchmark metadata:
 packaging
-tomli; python_version < '3.11'
 
 
 # Optional dependencies
diff --git a/tox.ini b/tox.ini
index 12ab9b65..96836941 100644
--- a/tox.ini
+++ b/tox.ini
@@ -32,5 +32,4 @@ ignore = E501,E741,W503
 basepython = python3
 deps=
     mypy
-    tomli
 commands = mypy

From ee9c221d9670cd9e5d80f500fec47181f6d140d9 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 15:13:27 +0200
Subject: [PATCH 2/8] Add support for Python 3.15

---
 .github/workflows/main.yml | 14 +++++++-------
 doc/changelog.rst          |  3 +--
 pyproject.toml             |  3 ++-
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 981557b9..0253d537 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -21,24 +21,24 @@ jobs:
       matrix:
         # Test all supported versions on Ubuntu:
         os: [ubuntu-latest, ubuntu-24.04-arm]
-        python: ["3.11", "3.12", "3.13", "3.14"]
+        python: ["3.11", "3.12", "3.13", "3.14", "3.15"]
         experimental: [false]
         build: ['']
         include:
           # As the experimental task for the dev version.
           - os: ubuntu-latest
-            python: "3.14"
+            python: "3.15"
             experimental: true
             build: 'free-threading'
           - os: ubuntu-24.04-arm
-            python: "3.14"
+            python: "3.15"
             experimental: true
             build: 'free-threading'
           - os: ubuntu-latest
-            python: "3.15-dev"
+            python: "3.15-dev"  # TODO 3.16-dev pending https://github.com/actions/python-versions/pull/413
             experimental: true
           - os: ubuntu-latest
-            python: "3.15-dev"
+            python: "3.15-dev"  # TODO 3.16-dev pending https://github.com/actions/python-versions/pull/413
             experimental: true
             build: 'free-threading'
           # Also test PyPy, macOS, and Windows:
@@ -46,10 +46,10 @@ jobs:
             python: pypy-3.11
             experimental: false
           - os: macos-latest
-            python: "3.14"
+            python: "3.15"
             experimental: true
           - os: windows-latest
-            python: "3.14"
+            python: "3.15"
             experimental: false
     steps:
     - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
diff --git a/doc/changelog.rst b/doc/changelog.rst
index 73596082..aa8a1069 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -3,8 +3,7 @@ Changelog
 
 Version 1.15.0 (unreleased)
 --------------
-
-* Drop support for Python 3.10
+* Add support for Python 3.15 and drop 3.10
 
 Version 1.14.0 (2026-02-07)
 --------------
diff --git a/pyproject.toml b/pyproject.toml
index 46df93f0..d1de8675 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -59,6 +59,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
+  "Programming Language :: Python :: 3.15",
 ]
 dynamic = [ "version" ]
 dependencies = [
@@ -96,7 +97,7 @@ lint.ignore = [
 ]
 
 [tool.pyproject-fmt]
-max_supported_python = "3.14"
+max_supported_python = "3.15"
 
 [tool.mypy]
 python_version = "3.11"

From 4d89583f5bc83c079e5895de7f89d4d59658d011 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 15:14:50 +0200
Subject: [PATCH 3/8] Bump tornado to fix bm_tornado_http on PyPy

---
 doc/changelog.rst                                               | 1 +
 .../data-files/benchmarks/bm_tornado_http/requirements.txt      | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/changelog.rst b/doc/changelog.rst
index aa8a1069..e24bb84f 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -4,6 +4,7 @@ Changelog
 Version 1.15.0 (unreleased)
 --------------
 * Add support for Python 3.15 and drop 3.10
+* Bump tornado to 6.6 (fixes ``BufferError`` on PyPy)
 
 Version 1.14.0 (2026-02-07)
 --------------
diff --git a/pyperformance/data-files/benchmarks/bm_tornado_http/requirements.txt b/pyperformance/data-files/benchmarks/bm_tornado_http/requirements.txt
index 180ff786..f60a887b 100644
--- a/pyperformance/data-files/benchmarks/bm_tornado_http/requirements.txt
+++ b/pyperformance/data-files/benchmarks/bm_tornado_http/requirements.txt
@@ -1 +1 @@
-tornado==6.5.2
+tornado==6.6

From ca2fbbaf3c807849d1c80b111c18cacb47241cdc Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 15:16:45 +0200
Subject: [PATCH 4/8] Upgrade syntax for Python 3.11+ with Ruff

---
 doc/conf.py                               | 1 -
 examples/benchmarking-scripts/backfill.py | 2 +-
 pyperformance/compare.py                  | 2 +-
 pyperformance/compile.py                  | 6 +++---
 pyperformance/tests/test_commands.py      | 2 +-
 pyperformance/venv.py                     | 2 +-
 6 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/doc/conf.py b/doc/conf.py
index 202335f6..d3bc05ea 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 #
 # Python Performance Benchmark Suite documentation build configuration file, created by
 # sphinx-quickstart on Tue Mar 28 15:59:41 2017.
diff --git a/examples/benchmarking-scripts/backfill.py b/examples/benchmarking-scripts/backfill.py
index 313ca479..5b873fdd 100644
--- a/examples/benchmarking-scripts/backfill.py
+++ b/examples/benchmarking-scripts/backfill.py
@@ -16,7 +16,7 @@
 
 def get_revisions() -> tuple[str, str]:
     revisions = []
-    with open("backfill_shas.txt", "r") as f:
+    with open("backfill_shas.txt") as f:
         for line in f:
             sha, branch = line.split("=")
             revisions.append((sha, branch.rstrip()))
diff --git a/pyperformance/compare.py b/pyperformance/compare.py
index 176d797d..b9089796 100644
--- a/pyperformance/compare.py
+++ b/pyperformance/compare.py
@@ -231,7 +231,7 @@ def format_table(base_label, changed_label, results):
     return "\n".join(output)
 
 
-class BenchmarkResult(object):
+class BenchmarkResult:
     """An object representing data from a succesful benchmark run."""
 
     def __init__(self, base, changed):
diff --git a/pyperformance/compile.py b/pyperformance/compile.py
index c1ffe06d..447256fd 100644
--- a/pyperformance/compile.py
+++ b/pyperformance/compile.py
@@ -43,7 +43,7 @@ def replace_timezone(regs):
     return datetime.datetime.strptime(text2, "%Y-%m-%dT%H:%M:%S%z")
 
 
-class Task(object):
+class Task:
     def __init__(self, app, cwd):
         self.app = app
         self.cwd = cwd
@@ -118,14 +118,14 @@ def get_revision_info(self, revision):
             node, date = stdout.split("|")
             date = datetime.datetime.strptime(date, "%Y-%m-%d %H:%M:%S %z")
             # convert local date to UTC
-            date = (date - date.utcoffset()).replace(tzinfo=datetime.timezone.utc)
+            date = (date - date.utcoffset()).replace(tzinfo=datetime.UTC)
         else:
             node, date = stdout.split("|")
             date = datetime.datetime.strptime(date[:16], "%Y-%m-%d %H:%M")
         return (node, date)
 
 
-class Application(object):
+class Application:
     def __init__(self, conf, options):
         self.conf = conf
         self.options = options
diff --git a/pyperformance/tests/test_commands.py b/pyperformance/tests/test_commands.py
index 5b44f015..f3924692 100644
--- a/pyperformance/tests/test_commands.py
+++ b/pyperformance/tests/test_commands.py
@@ -456,7 +456,7 @@ def test_compare_csv(self):
         filename = self.resolve_tmp("outfile.csv", unique=True)
         with tests.CleanupFile(filename):
             self.compare("--csv", filename)
-            with open(filename, "r", encoding="utf-8") as infile:
+            with open(filename, encoding="utf-8") as infile:
                 csv = infile.read()
 
         self.assertEqual(csv, expected)
diff --git a/pyperformance/venv.py b/pyperformance/venv.py
index 6c7301a9..871790e8 100644
--- a/pyperformance/venv.py
+++ b/pyperformance/venv.py
@@ -12,7 +12,7 @@
 PYPERF_OPTIONAL = ["psutil"]
 
 
-class Requirements(object):
+class Requirements:
     @classmethod
     def from_file(cls, filename):
         self = cls()

From f72fe07710ed20522bd41dca01ba5bc95190ad2c Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 15:33:26 +0200
Subject: [PATCH 5/8] Bump genshi to fix bm_genshi on Python 3.15

---
 doc/changelog.rst                                              | 1 +
 pyperformance/data-files/benchmarks/bm_genshi/requirements.txt | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/changelog.rst b/doc/changelog.rst
index e24bb84f..6e0adfd3 100644
--- a/doc/changelog.rst
+++ b/doc/changelog.rst
@@ -5,6 +5,7 @@ Version 1.15.0 (unreleased)
 --------------
 * Add support for Python 3.15 and drop 3.10
 * Bump tornado to 6.6 (fixes ``BufferError`` on PyPy)
+* Bump genshi to 0.7.12 (fixes ``TypeError`` on Python 3.15)
 
 Version 1.14.0 (2026-02-07)
 --------------
diff --git a/pyperformance/data-files/benchmarks/bm_genshi/requirements.txt b/pyperformance/data-files/benchmarks/bm_genshi/requirements.txt
index 3ea4b594..333291bd 100644
--- a/pyperformance/data-files/benchmarks/bm_genshi/requirements.txt
+++ b/pyperformance/data-files/benchmarks/bm_genshi/requirements.txt
@@ -1,2 +1 @@
-genshi==0.7.7
-six==1.16.0
+genshi==0.7.12

From 4bb80359ede507e51f9f696e930fba76d13c2ea6 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 20:43:22 +0200
Subject: [PATCH 6/8] Test PyPy3.12

---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0253d537..7429d1c8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -43,7 +43,7 @@ jobs:
             build: 'free-threading'
           # Also test PyPy, macOS, and Windows:
           - os: ubuntu-latest
-            python: pypy-3.11
+            python: pypy3.12
             experimental: false
           - os: macos-latest
             python: "3.15"

From 905c4374cd4a41f83f8a12ffdb77bdb1d9023f17 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Tue, 3 Nov 2026 20:45:30 +0200
Subject: [PATCH 7/8] Revert "Test PyPy3.12"

This reverts commit 4bb80359ede507e51f9f696e930fba76d13c2ea6.
---
 .github/workflows/main.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7429d1c8..0253d537 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -43,7 +43,7 @@ jobs:
             build: 'free-threading'
           # Also test PyPy, macOS, and Windows:
           - os: ubuntu-latest
-            python: pypy3.12
+            python: pypy-3.11
             experimental: false
           - os: macos-latest
             python: "3.15"

From f94a7e83deffc7dd3dae71ee18e15b0f4ba7e9c2 Mon Sep 17 00:00:00 2001
From: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>
Date: Wed, 4 Nov 2026 11:04:44 +0200
Subject: [PATCH 8/8] 3.16-dev is now available on GitHub Actions

---
 .github/workflows/main.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0253d537..5344d66e 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -35,10 +35,10 @@ jobs:
             experimental: true
             build: 'free-threading'
           - os: ubuntu-latest
-            python: "3.15-dev"  # TODO 3.16-dev pending https://github.com/actions/python-versions/pull/413
+            python: "3.16-dev"
             experimental: true
           - os: ubuntu-latest
-            python: "3.15-dev"  # TODO 3.16-dev pending https://github.com/actions/python-versions/pull/413
+            python: "3.16-dev"
             experimental: true
             build: 'free-threading'
           # Also test PyPy, macOS, and Windows: