From 076150fb6caf9fa361a8b63c2239d153f48b8d1c Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 00:14:24 +0000
Subject: [PATCH 01/38] Add github actions status badge to README

---
 README.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.rst b/README.rst
index 15ba444..b9dcfa7 100644
--- a/README.rst
+++ b/README.rst
@@ -5,8 +5,8 @@ python-lz4
 Status
 ======
 
-.. image:: https://travis-ci.org/python-lz4/python-lz4.svg?branch=master
-   :target: https://travis-ci.org/python-lz4/python-lz4
+.. image:: https://github.com/python-lz4/python-lz4/actions/workflows/build_dist.yml/badge.svg
+   :target: https://github.com/python-lz4/python-lz4/actions/workflows/build_dist.yml
    :alt: Build Status
 
 .. image:: https://ci.appveyor.com/api/projects/status/r2qvw9mlfo63lklo/branch/master?svg=true

From 8a4aa23aca1255de5e29fc09994b0a8cd7c404a5 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 00:29:53 +0000
Subject: [PATCH 02/38] Remove AppVeyor badge from README

---
 README.rst | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/README.rst b/README.rst
index b9dcfa7..a75bc4d 100644
--- a/README.rst
+++ b/README.rst
@@ -9,10 +9,6 @@ Status
    :target: https://github.com/python-lz4/python-lz4/actions/workflows/build_dist.yml
    :alt: Build Status
 
-.. image:: https://ci.appveyor.com/api/projects/status/r2qvw9mlfo63lklo/branch/master?svg=true
-   :target: https://ci.appveyor.com/project/jonathanunderwood/python-lz4
-   :alt: Build Status Windows
-
 .. image:: https://readthedocs.org/projects/python-lz4/badge/?version=stable
    :target: https://readthedocs.org/projects/python-lz4/
    :alt: Documentation

From d47235998c3f54d355646b61e7ff19a182f01ac5 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 20:40:20 +0000
Subject: [PATCH 03/38] Remove dependency on distutils (#236)

---
 setup.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index 2f2704f..b499e01 100644
--- a/setup.py
+++ b/setup.py
@@ -1,8 +1,9 @@
 #!/usr/bin/env python
 import os
 from setuptools import setup, find_packages, Extension
+from setuptools.command.build_ext import new_compiler
 import sys
-from distutils import ccompiler
+
 
 # Note: if updating LZ4_REQUIRED_VERSION you need to update docs/install.rst as
 # well.
@@ -97,7 +98,7 @@ def pkgconfig_installed_check(lib, required_version, default):
         ]
     )
 
-compiler = ccompiler.get_default_compiler()
+compiler = new_compiler().compiler_type
 
 if compiler == 'msvc':
     extension_kwargs['extra_compile_args'] = [

From acd7557dd837966961e02c3a958d04f700e3d8b8 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 21:39:49 +0000
Subject: [PATCH 04/38] Add env var to control building against system LZ4

---
 setup.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index b499e01..32f3434 100644
--- a/setup.py
+++ b/setup.py
@@ -68,7 +68,13 @@ def pkgconfig_installed_check(lib, required_version, default):
     'lz4/stream/_stream.c'
 ]
 
-if liblz4_found is True:
+use_system_liblz4_env = os.environ.get("PYLZ4_USE_SYSTEM_LZ4", "True")
+if use_system_liblz4_env.upper() in ("1", "TRUE"):
+    use_system_liblz4 = True
+else:
+    use_system_liblz4 = False
+
+if liblz4_found is True and use_system_liblz4 is True:
     extension_kwargs['libraries'] = ['lz4']
 else:
     extension_kwargs['include_dirs'] = ['lz4libs']

From 9a1d7c2ef09b01c00db8da31fc36c0ca73e59a14 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 21:40:57 +0000
Subject: [PATCH 05/38] Force using bundled LZ4 when building wheels

---
 .github/workflows/build_dist.yml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 2c93cdd..c02e25e 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -53,6 +53,7 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.11.4
         env:
+          PYLZ4_USE_SYSTEM_LZ4: "False"
           CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
           CIBW_ARCHS_MACOS: "x86_64 arm64" # universal2"
           CIBW_ARCHS_WINDOWS: "AMD64 x86"

From 783967171cbfa6c29807cf21b9d64fbb9e86cbab Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 21:42:27 +0000
Subject: [PATCH 06/38] Clean up handling of PYLZ4_EXPERIMENTAL

---
 setup.py | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/setup.py b/setup.py
index 32f3434..f793adf 100644
--- a/setup.py
+++ b/setup.py
@@ -36,12 +36,11 @@ def pkgconfig_installed_check(lib, required_version, default):
     liblz4_found = pkgconfig_installed_check('liblz4', LZ4_REQUIRED_VERSION, default=False)
 
 # Establish if we want to build experimental functionality or not.
-experimental = os.environ.get("PYLZ4_EXPERIMENTAL", False)
-if experimental is not False:
-    if experimental.upper() in ("1", "TRUE"):
-        experimental = True
-    else:
-        experimental = False
+experimental_env = os.environ.get("PYLZ4_EXPERIMENTAL", "False")
+if experimental_env.upper() in ("1", "TRUE"):
+    experimental = True
+else:
+    experimental = False
 
 # Set up the extension modules. If a system wide lz4 library is found, and is
 # recent enough, we'll use that. Otherwise we'll build with the bundled one. If

From d1a071add32e9140324f2729c783211471ecdfd9 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 21:59:46 +0000
Subject: [PATCH 07/38] Ensure PYLZ4_USE_SYSTEM_LZ4 env var passed to
 cibuildwheel

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index c02e25e..6fd9b2f 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -53,7 +53,7 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.11.4
         env:
-          PYLZ4_USE_SYSTEM_LZ4: "False"
+          CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
           CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
           CIBW_ARCHS_MACOS: "x86_64 arm64" # universal2"
           CIBW_ARCHS_WINDOWS: "AMD64 x86"

From b1b3afd4dc37816c1a93a471e89761f5256d45db Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Fri, 30 Dec 2022 22:16:46 +0000
Subject: [PATCH 08/38] Don't link against system lz4 if PYLZ4_USE_SYSTEM_LZ4
 is not True

---
 setup.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/setup.py b/setup.py
index f793adf..387f5c8 100644
--- a/setup.py
+++ b/setup.py
@@ -113,7 +113,7 @@ def pkgconfig_installed_check(lib, required_version, default):
         '/wd4820',
     ]
 elif compiler in ('unix', 'mingw32'):
-    if liblz4_found:
+    if liblz4_found is True and use_system_liblz4 is True:
         extension_kwargs = pkgconfig_parse('liblz4')
     else:
         extension_kwargs['extra_compile_args'] = [

From 231b29c2776128c1a8c8ab5d5cec765c00615966 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Sat, 31 Dec 2022 00:26:27 +0000
Subject: [PATCH 09/38] Add .readthedocs.yml

---
 .readthedocs.yml | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 .readthedocs.yml

diff --git a/.readthedocs.yml b/.readthedocs.yml
new file mode 100644
index 0000000..1ad8c58
--- /dev/null
+++ b/.readthedocs.yml
@@ -0,0 +1,25 @@
+# .readthedocs.yaml
+# Read the Docs configuration file
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-20.04
+  tools:
+    python: "3.11"
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+   configuration: docs/conf.py
+
+# If using Sphinx, optionally build your docs in additional formats such as PDF
+formats:
+    - pdf
+
+# Optionally declare the Python requirements required to build your docs
+python:
+   install:
+   - requirements: docs/requirements.txt

From 837d0d68d1b97a91a432aecf0e983f8fe8d60ba3 Mon Sep 17 00:00:00 2001
From: David Evans <dave@evansd.net>
Date: Thu, 21 Dec 2023 08:30:22 +0000
Subject: [PATCH 10/38] Use `importlib.metadata` over `pkg_resources`

This is "The Modern Way" and is requoired for Python 3.12.
https://docs.python.org/3.12/library/importlib.metadata.html

As `importlib.metadata` was added in Python 3.8, and as we still support Python
3.7, we add a fallback import for older versions.
---
 docs/conf.py | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 51b6576..aefff88 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -55,8 +55,13 @@
 # |version| and |release|, also used in various other places throughout the
 # built documents.
 #
-from pkg_resources import get_distribution
-release = get_distribution('lz4').version
+try:
+    import importlib.metadata
+except ImportError:
+    from pkg_resources import get_distribution
+    release = get_distribution('lz4').version
+else:
+    release = importlib.metadata.version('lz4')
 version = release
 
 # The language for content autogenerated by Sphinx. Refer to documentation

From d41a6760eeed3800edf02ad862c976b5daedfd70 Mon Sep 17 00:00:00 2001
From: David Evans <dave@evansd.net>
Date: Thu, 21 Dec 2023 08:09:25 +0000
Subject: [PATCH 11/38] Add Python 3.12 to the build matrix

This required updating to the latest version of `pypa/cibuildwheel`.
---
 .github/workflows/build_dist.yml | 4 ++--
 setup.py                         | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 6fd9b2f..19999af 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -35,7 +35,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest] 
-        cibw_build: [cp37-*, cp38-*, cp39-*, cp310-*, cp311-*]
+        cibw_build: [cp37-*, cp38-*, cp39-*, cp310-*, cp311-*, cp312-*]
     steps:
       - name: Check out repository
         uses: actions/checkout@v3
@@ -51,7 +51,7 @@ jobs:
         with:
           platforms: all
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.11.4
+        uses: pypa/cibuildwheel@v2.16.2
         env:
           CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
           CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
diff --git a/setup.py b/setup.py
index 387f5c8..2fbd2ca 100644
--- a/setup.py
+++ b/setup.py
@@ -205,5 +205,6 @@ def pkgconfig_installed_check(lib, required_version, default):
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',
         'Programming Language :: Python :: 3.11',
+        'Programming Language :: Python :: 3.12',
     ],
 )

From b8844b1443b449302dc973e49e895c0fe0d84374 Mon Sep 17 00:00:00 2001
From: David Evans <dave@evansd.net>
Date: Thu, 21 Dec 2023 13:53:16 +0000
Subject: [PATCH 12/38] Add explicit dependency on `setuptools`

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 19999af..682b69d 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -22,6 +22,8 @@ jobs:
       uses: actions/setup-python@v4
       with:
         python-version: 3.x
+    - name: Install setuptools
+      run: pip install setuptools
     - name: Build sdist
       run: python setup.py sdist
     - name: Save sdist

From 7182e7d0bd7d70db65cc4f32cf0462c7fb71f5cb Mon Sep 17 00:00:00 2001
From: David Evans <dave@evansd.net>
Date: Thu, 21 Dec 2023 14:11:30 +0000
Subject: [PATCH 13/38] Drop support for Python 3.7

This reached end-of-life in June 2023:
https://devguide.python.org/versions/#unsupported-versions

And attempting to build the wheel fails with an error:
```
docs: install_package_deps /project> python -I -m pip install sphinx-bootstrap-theme 'sphinx>=1.6.0'
  docs: install_package /project> python -I -m pip install --force-reinstall --no-deps /project/.tox/.tmp/package/3/lz4-0.1.dev1180+g91fe6ef-0.editable-cp37-cp37m-linux_x86_64.whl
  docs: commands[0] /project> make -C docs doctest html
  make: Entering directory `/project/docs'
  sphinx-build -b doctest -d _build/doctrees   . _build/doctest
  Running Sphinx v5.3.0

  Extension error:
  Could not import extension sphinx.builders.linkcheck (exception: urllib3 v2.0 only supports OpenSSL 1.1.1+, currently the 'ssl' module is compiled with 'OpenSSL 1.0.2k-fips  26 Jan 2017'. See: https://github.com/urllib3/urllib3/issues/2168)
```
---
 .github/workflows/build_dist.yml | 2 +-
 docs/install.rst                 | 2 +-
 setup.py                         | 3 +--
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 682b69d..fe70b79 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -37,7 +37,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macOS-latest, windows-latest] 
-        cibw_build: [cp37-*, cp38-*, cp39-*, cp310-*, cp311-*, cp312-*]
+        cibw_build: [cp38-*, cp39-*, cp310-*, cp311-*, cp312-*]
     steps:
       - name: Check out repository
         uses: actions/checkout@v3
diff --git a/docs/install.rst b/docs/install.rst
index 3d531f7..664ffd3 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -22,7 +22,7 @@ The LZ4 bindings require linking to the LZ4 library, and so if there is not a
 pre-compiled wheel available for your platform you will need to have a suitable
 C compiler available, as well as the Python development header files. On
 Debian/Ubuntu based systems the header files for Python are found in the
-distribution package ``pythonX.Y-dev`` e.g. ``python3.7-dev``. On Fedora/Red Hat
+distribution package ``pythonX.Y-dev`` e.g. ``python3.8-dev``. On Fedora/Red Hat
 based systems, the Python header files are found in the distribution package
 ``python-devel``.
 
diff --git a/setup.py b/setup.py
index 2fbd2ca..f3a226d 100644
--- a/setup.py
+++ b/setup.py
@@ -171,7 +171,7 @@ def pkgconfig_installed_check(lib, required_version, default):
     use_scm_version={
         'write_to': "lz4/version.py",
     },
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     setup_requires=[
         'setuptools_scm',
         'pkgconfig',
@@ -200,7 +200,6 @@ def pkgconfig_installed_check(lib, required_version, default):
         'Intended Audience :: Developers',
         'Programming Language :: C',
         'Programming Language :: Python',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',

From a71746a0f210dd54e9b6ef94f558e896e218616a Mon Sep 17 00:00:00 2001
From: Peter Feerick <pfeerick@users.noreply.github.com>
Date: Sun, 7 Jan 2024 13:09:48 +1000
Subject: [PATCH 14/38] fix(doc): Install command missing a parameter

The `--no-binary` option needs a parameter, as indicated in the pip documentation here https://pip.pypa.io/en/stable/cli/pip_install/#cmdoption-no-binary
---
 docs/install.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/install.rst b/docs/install.rst
index 664ffd3..f6eeafe 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -40,7 +40,7 @@ this command will result in the extension modules being compiled from source::
 On systems for which pre-built wheels are available, the following command will
 force a local compilation of the extension modules from source::
 
-  $ pip install --no-binary --no-cache-dir lz4
+  $ pip install --no-binary :all: --no-cache-dir lz4
 
 The package can also be installed manually from a checkout of the source code
 git repository::

From 4929607b62e9275368677b73f4372d0101f400b7 Mon Sep 17 00:00:00 2001
From: Alexandre Abadie <alexandre.abadie@inria.fr>
Date: Thu, 7 Mar 2024 09:34:04 +0100
Subject: [PATCH 15/38] docs/lz4.block.rst: fix typo

---
 docs/lz4.block.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/lz4.block.rst b/docs/lz4.block.rst
index 0b2ef10..5c7f0c7 100644
--- a/docs/lz4.block.rst
+++ b/docs/lz4.block.rst
@@ -84,7 +84,7 @@ can be used in this case.
    True
 
 In this example we are catching the `lz4.block.LZ4BlockError`
-exception. This exception is raisedd if the LZ4 library call fails,
+exception. This exception is raised if the LZ4 library call fails,
 which can be caused by either the buffer used to store the
 uncompressed data (as set by `usize`) being too small, or the input
 compressed data being invalid - it is not possible to distinguish the

From d2248984f30156726423ab1b31790fc16e031c64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Duarte?= <duarte.gmj@gmail.com>
Date: Wed, 18 Sep 2024 17:10:31 +0000
Subject: [PATCH 16/38] Update CI

- Updates all GH Actions to their latest versions
- Removes Python 3.8 (EOL)
- Adds Python 3.13
- Stops fail-fast to avoid wasting builds for a single failure
---
 .github/workflows/build_dist.yml | 70 +++++++++++++++++++-------------
 1 file changed, 42 insertions(+), 28 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index fe70b79..b38968d 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -9,55 +9,68 @@ on:
     types: [created]
   pull_request:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   sdist:
     name: Build source distribution
     runs-on: ubuntu-latest
     steps:
-    - name: Check out repository
-      uses: actions/checkout@v3
-      with:
-        fetch-depth: 0  # To ensure tags are retrieved to enabe setuptools_scm to work
-    - name: Install Python 3.x
-      uses: actions/setup-python@v4
-      with:
-        python-version: 3.x
-    - name: Install setuptools
-      run: pip install setuptools
-    - name: Build sdist
-      run: python setup.py sdist
-    - name: Save sdist
-      uses: actions/upload-artifact@v3
-      with:
-        path: dist/*.tar.gz
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # To ensure tags are retrieved to enabe setuptools_scm to work
+      - name: Install Python 3.x
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - name: Install setuptools
+        run: pip install setuptools
+      - name: Build sdist
+        run: python setup.py sdist
+      - name: Save sdist
+        uses: actions/upload-artifact@v4
+        with:
+          name: cibw-sdist
+          path: dist/*.tar.gz
 
   wheels:
     name: Build wheels on ${{ matrix.os }} CIBW_BUILD=${{ matrix.cibw_build }}
     runs-on: ${{ matrix.os }}
     strategy:
+      # since multiple builds run at the same time, cancelling them all when one
+      # fails is wasteful and forces handling build problems one by one instead
+      # of showing a "full picture"
+      fail-fast: false
       matrix:
-        os: [ubuntu-latest, macOS-latest, windows-latest] 
-        cibw_build: [cp38-*, cp39-*, cp310-*, cp311-*, cp312-*]
+        os:
+          - ubuntu-latest
+          - macos-13 # x86
+          - macos-latest # arm
+          - windows-latest
+        cibw_build: [cp39-*, cp310-*, cp311-*, cp312-*, cp313-*]
     steps:
       - name: Check out repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
-          fetch-depth: 0  # To ensure tags are retrieved to enabe setuptools_scm to work
+          fetch-depth: 0 # To ensure tags are retrieved to enabe setuptools_scm to work
       - name: Install Python 3.x
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: 3.x
-      - name: Set up QEMU  # Needed to build aarch64 wheels
+      - name: Set up QEMU # Needed to build aarch64 wheels
         if: runner.os == 'Linux'
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
         with:
           platforms: all
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.16.2
+        uses: pypa/cibuildwheel@v2.21
         env:
           CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
           CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
-          CIBW_ARCHS_MACOS: "x86_64 arm64" # universal2"
+          CIBW_ARCHS_MACOS: "auto64" # since we have both runner arches
           CIBW_ARCHS_WINDOWS: "AMD64 x86"
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_SKIP: "cp*-musllinux*"
@@ -65,8 +78,9 @@ jobs:
           CIBW_TEST_SKIP: "*-macosx_arm64 *-macosx_universal2:arm64 *-*linux_{aarch64,ppc64le,s390x}"
           CIBW_BEFORE_BUILD: "python -m pip install -U pip && python -m pip install tox"
       - name: Save wheels
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         with:
+          name: cibw-wheels-${{ strategy.job-index }}
           path: wheelhouse/*.whl
 
   upload_pypi:
@@ -75,9 +89,9 @@ jobs:
     runs-on: ubuntu-latest
     if: startsWith(github.ref, 'refs/tags/')
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
-          name: artifact
+          pattern: cibw-*
           path: dist
       - uses: pypa/gh-action-pypi-publish@release/v1
         with:

From feb19af092628ed0804814dd161084700a33bcab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Duarte?= <duarte.gmj@gmail.com>
Date: Thu, 17 Oct 2024 08:58:50 +0000
Subject: [PATCH 17/38] Update setup.py Python versions

---
 setup.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/setup.py b/setup.py
index f3a226d..9bc91f0 100644
--- a/setup.py
+++ b/setup.py
@@ -171,7 +171,7 @@ def pkgconfig_installed_check(lib, required_version, default):
     use_scm_version={
         'write_to': "lz4/version.py",
     },
-    python_requires=">=3.8",
+    python_requires=">=3.9",
     setup_requires=[
         'setuptools_scm',
         'pkgconfig',
@@ -200,10 +200,10 @@ def pkgconfig_installed_check(lib, required_version, default):
         'Intended Audience :: Developers',
         'Programming Language :: C',
         'Programming Language :: Python',
-        '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',
     ],
 )

From 4d9bced9173c6deb9c19e46d07b16861df8fc539 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Duarte?= <duarte.gmj@gmail.com>
Date: Thu, 14 Nov 2024 11:25:02 +0000
Subject: [PATCH 18/38] revert artifact renaming

---
 .github/workflows/build_dist.yml | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index b38968d..ad4763b 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -33,7 +33,6 @@ jobs:
       - name: Save sdist
         uses: actions/upload-artifact@v4
         with:
-          name: cibw-sdist
           path: dist/*.tar.gz
 
   wheels:
@@ -80,7 +79,6 @@ jobs:
       - name: Save wheels
         uses: actions/upload-artifact@v4
         with:
-          name: cibw-wheels-${{ strategy.job-index }}
           path: wheelhouse/*.whl
 
   upload_pypi:
@@ -91,9 +89,9 @@ jobs:
     steps:
       - uses: actions/download-artifact@v4
         with:
-          pattern: cibw-*
+          pattern: artifact
           path: dist
       - uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}
-          skip_existing: true
+          skip-existing: true

From a46e255cb7b64ece87ec63b3bdd2a1d87fe3cacb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Duarte?= <duarte.gmj@gmail.com>
Date: Thu, 14 Nov 2024 17:14:08 +0000
Subject: [PATCH 19/38] Add file extensions to uploaded archives

---
 .github/workflows/build_dist.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index ad4763b..1e815c1 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -33,6 +33,7 @@ jobs:
       - name: Save sdist
         uses: actions/upload-artifact@v4
         with:
+          name: cibw-sdist.tar.gz
           path: dist/*.tar.gz
 
   wheels:
@@ -79,6 +80,7 @@ jobs:
       - name: Save wheels
         uses: actions/upload-artifact@v4
         with:
+          name: cibw-wheels-${{ strategy.job-index }}.whl
           path: wheelhouse/*.whl
 
   upload_pypi:
@@ -89,7 +91,7 @@ jobs:
     steps:
       - uses: actions/download-artifact@v4
         with:
-          pattern: artifact
+          pattern: cibw-*
           path: dist
       - uses: pypa/gh-action-pypi-publish@release/v1
         with:

From be4b2a92feb2a2db91bd627db2ed49cdc3ad6521 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Sun, 26 Jan 2025 18:28:09 +0000
Subject: [PATCH 20/38] Fix publishing to pypi

---
 .github/workflows/build_dist.yml | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 1e815c1..3189d4a 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -80,8 +80,8 @@ jobs:
       - name: Save wheels
         uses: actions/upload-artifact@v4
         with:
-          name: cibw-wheels-${{ strategy.job-index }}.whl
-          path: wheelhouse/*.whl
+          name: cibw-wheels-${{ matrix.os }}-${{ strategy.job-index }}
+          path: ./wheelhouse/*.whl
 
   upload_pypi:
     name: Upload to PyPI
@@ -93,6 +93,7 @@ jobs:
         with:
           pattern: cibw-*
           path: dist
+          merge-multiple: true
       - uses: pypa/gh-action-pypi-publish@release/v1
         with:
           password: ${{ secrets.PYPI_API_TOKEN }}

From b5e5217b1a783da004efef0b0d2ea0ce64241b84 Mon Sep 17 00:00:00 2001
From: "Jonathan G. Underwood" <jonathan.underwood@gmail.com>
Date: Sun, 26 Jan 2025 19:42:04 +0000
Subject: [PATCH 21/38] Disable aarch64 builds due to compiler failure

---
 .github/workflows/build_dist.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 3189d4a..879db7d 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -69,7 +69,8 @@ jobs:
         uses: pypa/cibuildwheel@v2.21
         env:
           CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
-          CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
+          # CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
+          CIBW_ARCHS_LINUX: "x86_64 i686"
           CIBW_ARCHS_MACOS: "auto64" # since we have both runner arches
           CIBW_ARCHS_WINDOWS: "AMD64 x86"
           CIBW_BUILD: ${{ matrix.cibw_build }}

From b20fdf35e659d697bcc82a81ac0aec6bf95bdbc3 Mon Sep 17 00:00:00 2001
From: Rudolf Kolbe <rkolbe96@gmail.com>
Date: Wed, 2 Apr 2025 00:03:43 +0200
Subject: [PATCH 22/38] build_dist workflow - (re)add arm support for Linux and
 Windows (#300)

This enables Arm support for Linux and Windows.
---
 .github/workflows/build_dist.yml | 46 +++++++++++++++++++++++++++-----
 1 file changed, 40 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 879db7d..ac70871 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -26,10 +26,8 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: 3.x
-      - name: Install setuptools
-        run: pip install setuptools
       - name: Build sdist
-        run: python setup.py sdist
+        run: pipx run build --sdist
       - name: Save sdist
         uses: actions/upload-artifact@v4
         with:
@@ -72,11 +70,47 @@ jobs:
           # CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
           CIBW_ARCHS_LINUX: "x86_64 i686"
           CIBW_ARCHS_MACOS: "auto64" # since we have both runner arches
-          CIBW_ARCHS_WINDOWS: "AMD64 x86"
+          CIBW_ARCHS_WINDOWS: "AMD64 x86 ARM64"
+          CIBW_BUILD: ${{ matrix.cibw_build }}
+          CIBW_SKIP: "cp*-musllinux*"
+          CIBW_TEST_COMMAND: "tox -c {project}"
+          CIBW_TEST_SKIP: "*-macosx_arm64 *-macosx_universal2:arm64 *-*linux_{ppc64le,s390x} *-win_arm64"
+          CIBW_BEFORE_BUILD: "python -m pip install -U pip && python -m pip install tox"
+      - name: Save wheels
+        uses: actions/upload-artifact@v4
+        with:
+          name: cibw-wheels-${{ matrix.os }}-${{ strategy.job-index }}
+          path: ./wheelhouse/*.whl
+
+  wheels_linux_arm:
+    name: Build wheels on ${{ matrix.os }} CIBW_BUILD=${{ matrix.cibw_build }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      # since multiple builds run at the same time, cancelling them all when one
+      # fails is wasteful and forces handling build problems one by one instead
+      # of showing a "full picture"
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-24.04-arm
+        cibw_build: [cp39-*, cp310-*, cp311-*, cp312-*, cp313-*]
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # To ensure tags are retrieved to enabe setuptools_scm to work
+      - name: Install Python 3.x
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+      - name: Build wheels
+        uses: pypa/cibuildwheel@v2.21
+        env:
+          CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
+          CIBW_ARCHS_LINUX: "aarch64 armv7l"
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_SKIP: "cp*-musllinux*"
           CIBW_TEST_COMMAND: "tox -c {project}"
-          CIBW_TEST_SKIP: "*-macosx_arm64 *-macosx_universal2:arm64 *-*linux_{aarch64,ppc64le,s390x}"
           CIBW_BEFORE_BUILD: "python -m pip install -U pip && python -m pip install tox"
       - name: Save wheels
         uses: actions/upload-artifact@v4
@@ -86,7 +120,7 @@ jobs:
 
   upload_pypi:
     name: Upload to PyPI
-    needs: [sdist, wheels]
+    needs: [sdist, wheels, wheels_linux_arm]
     runs-on: ubuntu-latest
     if: startsWith(github.ref, 'refs/tags/')
     steps:

From 7633d8d48f4b8ff6da495e0c426ee292d00b97e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Mon, 17 Mar 2025 16:09:57 -0500
Subject: [PATCH 23/38] Enable CPython free-threaded wheel builds

---
 .github/workflows/build_dist.yml | 11 ++++++++-
 lz4/_version.c                   |  4 +++
 lz4/block/_block.c               |  4 +++
 lz4/frame/_frame.c               |  4 +++
 lz4/stream/_stream.c             |  4 +++
 tests/block/conftest.py          | 18 ++++++++++++++
 tests/block/test_block_0.py      | 14 ++++++++++-
 tests/block/test_block_3.py      |  1 +
 tests/frame/test_frame_2.py      |  7 ++++++
 tests/frame/test_frame_5.py      |  8 +++---
 tests/frame/test_frame_6.py      | 42 +++++++++++++++++++-------------
 tests/frame/test_frame_8.py      |  8 +++---
 tests/frame/test_frame_9.py      | 25 +++++++++++--------
 tests/stream/test_stream_0.py    |  1 +
 tests/stream/test_stream_3.py    |  1 +
 15 files changed, 117 insertions(+), 35 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index ac70871..b1e325c 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -48,7 +48,7 @@ jobs:
           - macos-13 # x86
           - macos-latest # arm
           - windows-latest
-        cibw_build: [cp39-*, cp310-*, cp311-*, cp312-*, cp313-*]
+        cibw_build: [cp39-*, cp310-*, cp311-*, cp312-*, cp313-*, cp313t-*]
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
@@ -63,6 +63,14 @@ jobs:
         uses: docker/setup-qemu-action@v3
         with:
           platforms: all
+
+      - name: Setup free-threading variables
+        if: ${{ endsWith(matrix.cibw_build, 't-*') }}
+        shell: bash -l {0}
+        run: |
+          echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
+          echo "TOX_OVERRIDE=testenv.deps+=pytest-run-parallel" >> "$GITHUB_ENV"
+          echo "PYTEST_ADDOPTS=--parallel-threads=4" >> "$GITHUB_ENV"
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.21
         env:
@@ -110,6 +118,7 @@ jobs:
           CIBW_ARCHS_LINUX: "aarch64 armv7l"
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_SKIP: "cp*-musllinux*"
+          CIBW_ENABLE: cpython-freethreading
           CIBW_TEST_COMMAND: "tox -c {project}"
           CIBW_BEFORE_BUILD: "python -m pip install -U pip && python -m pip install tox"
       - name: Save wheels
diff --git a/lz4/_version.c b/lz4/_version.c
index c611f0b..7795241 100644
--- a/lz4/_version.c
+++ b/lz4/_version.c
@@ -113,5 +113,9 @@ PyInit__version(void)
   if (module == NULL)
     return NULL;
 
+  #ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+  #endif
+
   return module;
 }
diff --git a/lz4/block/_block.c b/lz4/block/_block.c
index 3e904a0..daa9fd5 100644
--- a/lz4/block/_block.c
+++ b/lz4/block/_block.c
@@ -518,5 +518,9 @@ PyInit__block(void)
   Py_INCREF(LZ4BlockError);
   PyModule_AddObject(module, "LZ4BlockError", LZ4BlockError);
 
+  #ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+  #endif
+
   return module;
 }
diff --git a/lz4/frame/_frame.c b/lz4/frame/_frame.c
index 3460665..d081cce 100644
--- a/lz4/frame/_frame.c
+++ b/lz4/frame/_frame.c
@@ -1677,5 +1677,9 @@ PyInit__frame(void)
   PyModule_AddIntConstant (module, "BLOCKSIZE_MAX1MB", LZ4F_max1MB);
   PyModule_AddIntConstant (module, "BLOCKSIZE_MAX4MB", LZ4F_max4MB);
 
+  #ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+  #endif
+
   return module;
 }
diff --git a/lz4/stream/_stream.c b/lz4/stream/_stream.c
index 522fded..6351d96 100644
--- a/lz4/stream/_stream.c
+++ b/lz4/stream/_stream.c
@@ -1649,5 +1649,9 @@ PyInit__stream(void)
   Py_INCREF (LZ4StreamError);
   PyModule_AddObject (module, "LZ4StreamError", LZ4StreamError);
 
+  #ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+  #endif
+
   return module;
 }
diff --git a/tests/block/conftest.py b/tests/block/conftest.py
index 0b3578e..b25c239 100644
--- a/tests/block/conftest.py
+++ b/tests/block/conftest.py
@@ -3,6 +3,24 @@
 import sys
 
 
+class EmptyMemoryView():
+    def __init__(self):
+        self.data = b''
+        self.view = None
+
+    def __buffer__(self, flags: int, /) -> memoryview:
+        if self.view is None:
+            self.view = memoryview(self.data)
+            return self.view
+
+    def __release_buffer__(self, buffer: memoryview, /):
+        breakpoint()
+        buffer.release()
+
+    def __len__(self):
+        return 0
+
+
 test_data = [
     (b''),
     (os.urandom(8 * 1024)),
diff --git a/tests/block/test_block_0.py b/tests/block/test_block_0.py
index 8fc0f48..31513b4 100644
--- a/tests/block/test_block_0.py
+++ b/tests/block/test_block_0.py
@@ -1,6 +1,9 @@
 import lz4.block
 from multiprocessing.pool import ThreadPool
 import sys
+import copy
+import inspect
+import pytest
 from functools import partial
 if sys.version_info <= (3, 2):
     import struct
@@ -79,10 +82,19 @@ def test_1(data, mode, store_size, c_return_bytearray, d_return_bytearray, dicti
 
 
 # Test multi threaded usage with all valid variations of input
+@pytest.mark.thread_unsafe
 def test_2(data, mode, store_size, dictionary):
     (c_kwargs, d_kwargs) = setup_kwargs(mode, store_size)
 
-    data_in = [data for i in range(32)]
+    def copy_buf(data):
+        data_x = data
+        if isinstance(data, memoryview):
+            data_x = memoryview(copy.deepcopy(data.obj))
+        elif isinstance(data, bytearray):
+            data_x = bytearray(copy.deepcopy(data.__buffer__(inspect.BufferFlags.FULL_RO).obj))
+        return data_x
+
+    data_in = [copy_buf(data) for i in range(32)]
 
     pool = ThreadPool(2)
     rt = partial(roundtrip, c_kwargs=c_kwargs,
diff --git a/tests/block/test_block_3.py b/tests/block/test_block_3.py
index 3fcb175..88461b7 100644
--- a/tests/block/test_block_3.py
+++ b/tests/block/test_block_3.py
@@ -18,6 +18,7 @@ def data(request):
     return request.param
 
 
+@pytest.mark.thread_unsafe
 def test_block_decompress_mem_usage(data):
     tracemalloc = pytest.importorskip('tracemalloc')
 
diff --git a/tests/frame/test_frame_2.py b/tests/frame/test_frame_2.py
index 80b44b8..14a3f6b 100644
--- a/tests/frame/test_frame_2.py
+++ b/tests/frame/test_frame_2.py
@@ -1,6 +1,8 @@
 import lz4.frame as lz4frame
 import pytest
 import os
+import copy
+import inspect
 import sys
 from . helpers import (
     get_chunked,
@@ -41,6 +43,11 @@ def test_roundtrip_chunked(data, block_size, block_linked,
 
     data, c_chunks, d_chunks = data
 
+    if isinstance(data, memoryview):
+        data = memoryview(copy.deepcopy(data.obj))
+    elif isinstance(data, bytearray):
+        data = bytearray(copy.deepcopy(data.__buffer__(inspect.BufferFlags.FULL_RO).obj))
+
     c_context = lz4frame.create_compression_context()
 
     kwargs = {}
diff --git a/tests/frame/test_frame_5.py b/tests/frame/test_frame_5.py
index 05daf28..4083646 100644
--- a/tests/frame/test_frame_5.py
+++ b/tests/frame/test_frame_5.py
@@ -8,6 +8,8 @@
     (b'a' * 1024 * 1024),
 ]
 
+pytestmark = pytest.mark.thread_unsafe
+
 
 @pytest.fixture(
     params=test_data,
@@ -66,17 +68,17 @@ def test_frame_decompress_chunk_mem_usage(data):
             prev_snapshot = snapshot
 
 
-def test_frame_open_decompress_mem_usage(data):
+def test_frame_open_decompress_mem_usage(tmp_path, data):
     tracemalloc = pytest.importorskip('tracemalloc')
     tracemalloc.start()
 
-    with lz4.frame.open('test.lz4', 'w') as f:
+    with lz4.frame.open(tmp_path / 'test.lz4', 'w') as f:
         f.write(data)
 
     prev_snapshot = None
 
     for i in range(1000):
-        with lz4.frame.open('test.lz4', 'r') as f:
+        with lz4.frame.open(tmp_path / 'test.lz4', 'r') as f:
             decompressed = f.read()  # noqa: F841
 
         if i % 100 == 0:
diff --git a/tests/frame/test_frame_6.py b/tests/frame/test_frame_6.py
index c20a4f3..4f4185e 100644
--- a/tests/frame/test_frame_6.py
+++ b/tests/frame/test_frame_6.py
@@ -1,5 +1,6 @@
 import os
 import pytest
+import threading
 import lz4.frame as lz4frame
 
 test_data = [
@@ -33,40 +34,45 @@ def compression_level(request):
     return request.param
 
 
-def test_lz4frame_open_write(data):
-    with lz4frame.open('testfile', mode='wb') as fp:
+def test_lz4frame_open_write(tmp_path, data):
+    thread_id = threading.get_native_id()
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='wb') as fp:
         fp.write(data)
 
 
-def test_lz4frame_open_write_read_defaults(data):
-    with lz4frame.open('testfile', mode='wb') as fp:
+def test_lz4frame_open_write_read_defaults(tmp_path, data):
+    thread_id = threading.get_native_id()
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='wb') as fp:
         fp.write(data)
-    with lz4frame.open('testfile', mode='r') as fp:
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='r') as fp:
         data_out = fp.read()
     assert data_out == data
 
 
-def test_lz4frame_open_write_read_text():
+def test_lz4frame_open_write_read_text(tmp_path):
     data = u'This is a test string'
-    with lz4frame.open('testfile', mode='wt') as fp:
+    thread_id = threading.get_native_id()
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='wt') as fp:
         fp.write(data)
-    with lz4frame.open('testfile', mode='rt') as fp:
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='rt') as fp:
         data_out = fp.read()
     assert data_out == data
 
 
-def test_lz4frame_open_write_read_text_iter():
+def test_lz4frame_open_write_read_text_iter(tmp_path):
     data = u'This is a test string'
-    with lz4frame.open('testfile', mode='wt') as fp:
+    thread_id = threading.get_native_id()
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='wt') as fp:
         fp.write(data)
     data_out = ''
-    with lz4frame.open('testfile', mode='rt') as fp:
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='rt') as fp:
         for line in fp:
             data_out += line
     assert data_out == data
 
 
 def test_lz4frame_open_write_read(
+        tmp_path,
         data,
         compression_level,
         block_linked,
@@ -91,29 +97,31 @@ def test_lz4frame_open_write_read(
     kwargs['return_bytearray'] = return_bytearray
     kwargs['mode'] = 'wb'
 
-    with lz4frame.open('testfile', **kwargs) as fp:
+    thread_id = threading.get_native_id()
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', **kwargs) as fp:
         fp.write(data)
 
-    with lz4frame.open('testfile', mode='r') as fp:
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='r') as fp:
         data_out = fp.read()
 
     assert data_out == data
 
 
-def test_lz4frame_flush():
+def test_lz4frame_flush(tmp_path):
     data_1 = b"This is a..."
     data_2 = b" test string!"
+    thread_id = threading.get_native_id()
 
-    with lz4frame.open("testfile", mode="w") as fp_write:
+    with lz4frame.open(tmp_path / f"testfile_{thread_id}", mode="w") as fp_write:
         fp_write.write(data_1)
         fp_write.flush()
 
         fp_write.write(data_2)
 
-        with lz4frame.open("testfile", mode="r") as fp_read:
+        with lz4frame.open(tmp_path / f"testfile_{thread_id}", mode="r") as fp_read:
             assert fp_read.read() == data_1
 
         fp_write.flush()
 
-        with lz4frame.open("testfile", mode="r") as fp_read:
+        with lz4frame.open(tmp_path / f"testfile_{thread_id}", mode="r") as fp_read:
             assert fp_read.read() == data_1 + data_2
diff --git a/tests/frame/test_frame_8.py b/tests/frame/test_frame_8.py
index 159534a..cfaeaac 100644
--- a/tests/frame/test_frame_8.py
+++ b/tests/frame/test_frame_8.py
@@ -1,12 +1,14 @@
+import threading
 import lz4.frame as lz4frame
 
 
-def test_lz4frame_open_write_read_text_iter():
+def test_lz4frame_open_write_read_text_iter(tmp_path):
     data = u'This is a test string'
-    with lz4frame.open('testfile', mode='wt') as fp:
+    thread_id = threading.get_native_id()
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='wt') as fp:
         fp.write(data)
     data_out = ''
-    with lz4frame.open('testfile', mode='rt') as fp:
+    with lz4frame.open(tmp_path / f'testfile_{thread_id}', mode='rt') as fp:
         for line in fp:
             data_out += line
     assert data_out == data
diff --git a/tests/frame/test_frame_9.py b/tests/frame/test_frame_9.py
index 5143393..c5335ae 100644
--- a/tests/frame/test_frame_9.py
+++ b/tests/frame/test_frame_9.py
@@ -3,11 +3,12 @@
 import io
 import pickle
 import sys
+import threading
 import lz4.frame
 import pytest
 
 
-def test_issue_172_1():
+def test_issue_172_1(tmp_path):
     """Test reproducer for issue 172
 
     Issue 172 is a reported failure occurring on Windows 10 only. This bug was
@@ -16,34 +17,38 @@ def test_issue_172_1():
 
     """
     input_data = 8 * os.urandom(1024)
-    with lz4.frame.open('testfile_small', 'wb') as fp:
+    thread_id = threading.get_native_id()
+
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'wb') as fp:
         bytes_written = fp.write(input_data)  # noqa: F841
 
-    with lz4.frame.open('testfile_small', 'rb') as fp:
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'rb') as fp:
         data = fp.read(10)
         assert len(data) == 10
 
 
-def test_issue_172_2():
+def test_issue_172_2(tmp_path):
     input_data = 9 * os.urandom(1024)
-    with lz4.frame.open('testfile_small', 'w') as fp:
+    thread_id = threading.get_native_id()
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'w') as fp:
         bytes_written = fp.write(input_data)  # noqa: F841
 
-    with lz4.frame.open('testfile_small', 'r') as fp:
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'r') as fp:
         data = fp.read(10)
         assert len(data) == 10
 
 
-def test_issue_172_3():
+def test_issue_172_3(tmp_path):
     input_data = 9 * os.urandom(1024)
-    with lz4.frame.open('testfile_small', 'wb') as fp:
+    thread_id = threading.get_native_id()
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'wb') as fp:
         bytes_written = fp.write(input_data)  # noqa: F841
 
-    with lz4.frame.open('testfile_small', 'rb') as fp:
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'rb') as fp:
         data = fp.read(10)
         assert len(data) == 10
 
-    with lz4.frame.open('testfile_small', 'rb') as fp:
+    with lz4.frame.open(tmp_path / f'testfile_small_{thread_id}', 'rb') as fp:
         data = fp.read(16 * 1024 - 1)
         assert len(data) == 9 * 1024
         assert data == input_data
diff --git a/tests/stream/test_stream_0.py b/tests/stream/test_stream_0.py
index 03b19f3..cac07bd 100644
--- a/tests/stream/test_stream_0.py
+++ b/tests/stream/test_stream_0.py
@@ -96,6 +96,7 @@ def setup_kwargs(strategy, mode, buffer_size, store_comp_size,
 
 
 # Test single threaded usage with all valid variations of input
+@pytest.mark.thread_unsafe
 def test_1(data, strategy, mode, buffer_size, store_comp_size,
            c_return_bytearray, d_return_bytearray, dictionary):
     if buffer_size >= (1 << (8 * store_comp_size['store_comp_size'])):
diff --git a/tests/stream/test_stream_3.py b/tests/stream/test_stream_3.py
index 2b52d6b..fed93d2 100644
--- a/tests/stream/test_stream_3.py
+++ b/tests/stream/test_stream_3.py
@@ -71,6 +71,7 @@ def data(request):
     return request.param
 
 
+@pytest.mark.thread_unsafe
 def test_block_decompress_mem_usage(data, buffer_size):
     kwargs = {
         'strategy': "double_buffer",

From 0f5c05e7ccfc35f5f1d2d61cebb9f40480116444 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 11:42:55 -0500
Subject: [PATCH 24/38] Update cibuildwheel version

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index b1e325c..38f40dd 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -72,7 +72,7 @@ jobs:
           echo "TOX_OVERRIDE=testenv.deps+=pytest-run-parallel" >> "$GITHUB_ENV"
           echo "PYTEST_ADDOPTS=--parallel-threads=4" >> "$GITHUB_ENV"
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.21
+        uses: pypa/cibuildwheel@v2.23.2
         env:
           CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
           # CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"

From c0b3bb5c236cec8e1563411228d5133893c1a7f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 12:32:44 -0500
Subject: [PATCH 25/38] Variable misspell fix

---
 lz4/_version.c       | 2 +-
 lz4/block/_block.c   | 2 +-
 lz4/frame/_frame.c   | 2 +-
 lz4/stream/_stream.c | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/lz4/_version.c b/lz4/_version.c
index 7795241..af606ab 100644
--- a/lz4/_version.c
+++ b/lz4/_version.c
@@ -114,7 +114,7 @@ PyInit__version(void)
     return NULL;
 
   #ifdef Py_GIL_DISABLED
-    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+    PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED);
   #endif
 
   return module;
diff --git a/lz4/block/_block.c b/lz4/block/_block.c
index daa9fd5..993cc44 100644
--- a/lz4/block/_block.c
+++ b/lz4/block/_block.c
@@ -519,7 +519,7 @@ PyInit__block(void)
   PyModule_AddObject(module, "LZ4BlockError", LZ4BlockError);
 
   #ifdef Py_GIL_DISABLED
-    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+    PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED);
   #endif
 
   return module;
diff --git a/lz4/frame/_frame.c b/lz4/frame/_frame.c
index d081cce..e62c72c 100644
--- a/lz4/frame/_frame.c
+++ b/lz4/frame/_frame.c
@@ -1678,7 +1678,7 @@ PyInit__frame(void)
   PyModule_AddIntConstant (module, "BLOCKSIZE_MAX4MB", LZ4F_max4MB);
 
   #ifdef Py_GIL_DISABLED
-    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+    PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED);
   #endif
 
   return module;
diff --git a/lz4/stream/_stream.c b/lz4/stream/_stream.c
index 6351d96..f0dfad5 100644
--- a/lz4/stream/_stream.c
+++ b/lz4/stream/_stream.c
@@ -1650,7 +1650,7 @@ PyInit__stream(void)
   PyModule_AddObject (module, "LZ4StreamError", LZ4StreamError);
 
   #ifdef Py_GIL_DISABLED
-    PyUnstable_Module_SetGIL(mod, Py_MOD_GIL_NOT_USED);
+    PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED);
   #endif
 
   return module;

From 99321aa0166e6398276988a4d8c800568239177b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 14:38:33 -0500
Subject: [PATCH 26/38] Update environment variables

---
 .github/workflows/build_dist.yml | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 38f40dd..77862f1 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -69,12 +69,15 @@ jobs:
         shell: bash -l {0}
         run: |
           echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
-          echo "TOX_OVERRIDE=testenv.deps+=pytest-run-parallel" >> "$GITHUB_ENV"
-          echo "PYTEST_ADDOPTS=--parallel-threads=4" >> "$GITHUB_ENV"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4 TOX_OVERRIDE=testenv.deps+=pytest-run-parallel;testenv.pass_env=PYTEST_ADDOPTS"
+      - name: Setup environment
+        if: ${{ !endsWith(matrix.cibw_build, 't-*') }}
+        shell: bash -l {0}
+        run: |
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4="False" >> "$GITHUB_ENV"
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.23.2
         env:
-          CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
           # CIBW_ARCHS_LINUX: "x86_64 i686 aarch64"
           CIBW_ARCHS_LINUX: "x86_64 i686"
           CIBW_ARCHS_MACOS: "auto64" # since we have both runner arches

From 2258e28190e3f037617ae48fe329035b60c28ae6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 14:44:07 -0500
Subject: [PATCH 27/38] Ensure CIBW_ENVIRONMENT is set

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 77862f1..0c659e3 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -69,12 +69,12 @@ jobs:
         shell: bash -l {0}
         run: |
           echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
-          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4 TOX_OVERRIDE=testenv.deps+=pytest-run-parallel;testenv.pass_env=PYTEST_ADDOPTS"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4 TOX_OVERRIDE=testenv.deps+=pytest-run-parallel;testenv.pass_env=PYTEST_ADDOPTS" >> "$GITHUB_ENV"
       - name: Setup environment
         if: ${{ !endsWith(matrix.cibw_build, 't-*') }}
         shell: bash -l {0}
         run: |
-          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4="False" >> "$GITHUB_ENV"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False" >> "$GITHUB_ENV"
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.23.2
         env:

From a20d167678f4fec73d41e811f809ec2f1799bab6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 15:28:12 -0500
Subject: [PATCH 28/38] Pass tox overrides through CLI

---
 .github/workflows/build_dist.yml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 0c659e3..62d84da 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -69,12 +69,14 @@ jobs:
         shell: bash -l {0}
         run: |
           echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
-          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4 TOX_OVERRIDE=testenv.deps+=pytest-run-parallel;testenv.pass_env=PYTEST_ADDOPTS" >> "$GITHUB_ENV"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4" >> "$GITHUB_ENV"
+          echo "CIBW_TEST_COMMAND=tox -x testenv.deps+=pytest-run-parallel -x testenv.pass_env+=PYTEST_ADDOPTS -c {project}" >> "$GITHUB_ENV"
       - name: Setup environment
         if: ${{ !endsWith(matrix.cibw_build, 't-*') }}
         shell: bash -l {0}
         run: |
           echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False" >> "$GITHUB_ENV"
+          echo "CIBW_TEST_COMMAND=tox -c {project}" >> "$GITHUB_ENV"
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.23.2
         env:

From cc5c9b18002863ebb4fcff7ff58db05cdd3e0db3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 15:39:14 -0500
Subject: [PATCH 29/38] Ensure test command is applied

---
 .github/workflows/build_dist.yml | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 62d84da..e6541dd 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -84,9 +84,9 @@ jobs:
           CIBW_ARCHS_LINUX: "x86_64 i686"
           CIBW_ARCHS_MACOS: "auto64" # since we have both runner arches
           CIBW_ARCHS_WINDOWS: "AMD64 x86 ARM64"
+          CIBW_ENABLE: cpython-freethreading
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_SKIP: "cp*-musllinux*"
-          CIBW_TEST_COMMAND: "tox -c {project}"
           CIBW_TEST_SKIP: "*-macosx_arm64 *-macosx_universal2:arm64 *-*linux_{ppc64le,s390x} *-win_arm64"
           CIBW_BEFORE_BUILD: "python -m pip install -U pip && python -m pip install tox"
       - name: Save wheels
@@ -106,7 +106,7 @@ jobs:
       matrix:
         os:
           - ubuntu-24.04-arm
-        cibw_build: [cp39-*, cp310-*, cp311-*, cp312-*, cp313-*]
+        cibw_build: [cp39-*, cp310-*, cp311-*, cp312-*, cp313-*, cp313t-*]
     steps:
       - name: Check out repository
         uses: actions/checkout@v4
@@ -116,15 +116,26 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: 3.x
+      - name: Setup free-threading variables
+        if: ${{ endsWith(matrix.cibw_build, 't-*') }}
+        shell: bash -l {0}
+        run: |
+          echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4" >> "$GITHUB_ENV"
+          echo "CIBW_TEST_COMMAND=tox -x testenv.deps+=pytest-run-parallel -x testenv.pass_env+=PYTEST_ADDOPTS -c {project}" >> "$GITHUB_ENV"
+      - name: Setup environment
+        if: ${{ !endsWith(matrix.cibw_build, 't-*') }}
+        shell: bash -l {0}
+        run: |
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False" >> "$GITHUB_ENV"
+          echo "CIBW_TEST_COMMAND=tox -c {project}" >> "$GITHUB_ENV"
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.21
         env:
-          CIBW_ENVIRONMENT: PYLZ4_USE_SYSTEM_LZ4="False"
           CIBW_ARCHS_LINUX: "aarch64 armv7l"
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_SKIP: "cp*-musllinux*"
           CIBW_ENABLE: cpython-freethreading
-          CIBW_TEST_COMMAND: "tox -c {project}"
           CIBW_BEFORE_BUILD: "python -m pip install -U pip && python -m pip install tox"
       - name: Save wheels
         uses: actions/upload-artifact@v4

From 40bcbd8c88c27416b9dc430e65e7f07741c7dfa5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Tue, 1 Apr 2025 15:57:10 -0500
Subject: [PATCH 30/38] Check why using temp paths increase memory usage

---
 tests/frame/test_frame_5.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tests/frame/test_frame_5.py b/tests/frame/test_frame_5.py
index 4083646..dcbe4ae 100644
--- a/tests/frame/test_frame_5.py
+++ b/tests/frame/test_frame_5.py
@@ -68,17 +68,17 @@ def test_frame_decompress_chunk_mem_usage(data):
             prev_snapshot = snapshot
 
 
-def test_frame_open_decompress_mem_usage(tmp_path, data):
+def test_frame_open_decompress_mem_usage(data):
     tracemalloc = pytest.importorskip('tracemalloc')
     tracemalloc.start()
 
-    with lz4.frame.open(tmp_path / 'test.lz4', 'w') as f:
+    with lz4.frame.open('test.lz4', 'w') as f:
         f.write(data)
 
     prev_snapshot = None
 
     for i in range(1000):
-        with lz4.frame.open(tmp_path / 'test.lz4', 'r') as f:
+        with lz4.frame.open('test.lz4', 'r') as f:
             decompressed = f.read()  # noqa: F841
 
         if i % 100 == 0:

From ad3ec0d5810615afc9dff3d2b18f6d29d2066223 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Wed, 2 Apr 2025 17:13:03 -0500
Subject: [PATCH 31/38] Copy bytearrays directly

---
 tests/block/conftest.py     | 18 ------------------
 tests/block/test_block_0.py |  3 ++-
 tests/frame/test_frame_2.py |  4 +++-
 3 files changed, 5 insertions(+), 20 deletions(-)

diff --git a/tests/block/conftest.py b/tests/block/conftest.py
index b25c239..0b3578e 100644
--- a/tests/block/conftest.py
+++ b/tests/block/conftest.py
@@ -3,24 +3,6 @@
 import sys
 
 
-class EmptyMemoryView():
-    def __init__(self):
-        self.data = b''
-        self.view = None
-
-    def __buffer__(self, flags: int, /) -> memoryview:
-        if self.view is None:
-            self.view = memoryview(self.data)
-            return self.view
-
-    def __release_buffer__(self, buffer: memoryview, /):
-        breakpoint()
-        buffer.release()
-
-    def __len__(self):
-        return 0
-
-
 test_data = [
     (b''),
     (os.urandom(8 * 1024)),
diff --git a/tests/block/test_block_0.py b/tests/block/test_block_0.py
index 31513b4..8a22e57 100644
--- a/tests/block/test_block_0.py
+++ b/tests/block/test_block_0.py
@@ -91,7 +91,8 @@ def copy_buf(data):
         if isinstance(data, memoryview):
             data_x = memoryview(copy.deepcopy(data.obj))
         elif isinstance(data, bytearray):
-            data_x = bytearray(copy.deepcopy(data.__buffer__(inspect.BufferFlags.FULL_RO).obj))
+            data_x = bytearray()
+            data_x[:] = data
         return data_x
 
     data_in = [copy_buf(data) for i in range(32)]
diff --git a/tests/frame/test_frame_2.py b/tests/frame/test_frame_2.py
index 14a3f6b..f7e6fa3 100644
--- a/tests/frame/test_frame_2.py
+++ b/tests/frame/test_frame_2.py
@@ -46,7 +46,9 @@ def test_roundtrip_chunked(data, block_size, block_linked,
     if isinstance(data, memoryview):
         data = memoryview(copy.deepcopy(data.obj))
     elif isinstance(data, bytearray):
-        data = bytearray(copy.deepcopy(data.__buffer__(inspect.BufferFlags.FULL_RO).obj))
+        data_2 = bytearray()
+        data_2[:] = data
+        data = data_2
 
     c_context = lz4frame.create_compression_context()
 

From 7a88fb9351ddfd65936dab78b79e41e910add51c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Wed, 2 Apr 2025 17:22:17 -0500
Subject: [PATCH 32/38] Remove unused import

---
 tests/block/test_block_0.py | 1 -
 tests/frame/test_frame_2.py | 1 -
 2 files changed, 2 deletions(-)

diff --git a/tests/block/test_block_0.py b/tests/block/test_block_0.py
index 8a22e57..f2c3cd1 100644
--- a/tests/block/test_block_0.py
+++ b/tests/block/test_block_0.py
@@ -2,7 +2,6 @@
 from multiprocessing.pool import ThreadPool
 import sys
 import copy
-import inspect
 import pytest
 from functools import partial
 if sys.version_info <= (3, 2):
diff --git a/tests/frame/test_frame_2.py b/tests/frame/test_frame_2.py
index f7e6fa3..230867e 100644
--- a/tests/frame/test_frame_2.py
+++ b/tests/frame/test_frame_2.py
@@ -2,7 +2,6 @@
 import pytest
 import os
 import copy
-import inspect
 import sys
 from . helpers import (
     get_chunked,

From 737bac1a663c4d15347e98359b7a11c7ddc96f40 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Wed, 2 Apr 2025 17:41:35 -0500
Subject: [PATCH 33/38] Copy memoryview on test_1

---
 tests/block/test_block_0.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tests/block/test_block_0.py b/tests/block/test_block_0.py
index f2c3cd1..561b185 100644
--- a/tests/block/test_block_0.py
+++ b/tests/block/test_block_0.py
@@ -70,6 +70,13 @@ def setup_kwargs(mode, store_size, c_return_bytearray=None, d_return_bytearray=N
 
 # Test single threaded usage with all valid variations of input
 def test_1(data, mode, store_size, c_return_bytearray, d_return_bytearray, dictionary):
+    if isinstance(data, memoryview):
+        data = memoryview(copy.deepcopy(data.obj))
+    elif isinstance(data, bytearray):
+        data_x = bytearray()
+        data_x[:] = data
+        data = data_x
+
     (c_kwargs, d_kwargs) = setup_kwargs(
         mode, store_size, c_return_bytearray, d_return_bytearray)
 

From b7c0b665eb70706a1c6e334e54a1b9fa18c96cbf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Thu, 3 Apr 2025 12:26:53 -0500
Subject: [PATCH 34/38] Upgrade pypa/cibuildwheel action in arm64 job

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index e6541dd..4af62b6 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -130,7 +130,7 @@ jobs:
           echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False" >> "$GITHUB_ENV"
           echo "CIBW_TEST_COMMAND=tox -c {project}" >> "$GITHUB_ENV"
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.21
+        uses: pypa/cibuildwheel@v2.23.2
         env:
           CIBW_ARCHS_LINUX: "aarch64 armv7l"
           CIBW_BUILD: ${{ matrix.cibw_build }}

From 61957cb0dacf51b4cf0f351b740119bb576428b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Thu, 3 Apr 2025 14:45:57 -0500
Subject: [PATCH 35/38] CI: set parallelism to 2 in aarch64

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 4af62b6..e327680 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -121,7 +121,7 @@ jobs:
         shell: bash -l {0}
         run: |
           echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
-          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=4" >> "$GITHUB_ENV"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=2" >> "$GITHUB_ENV"
           echo "CIBW_TEST_COMMAND=tox -x testenv.deps+=pytest-run-parallel -x testenv.pass_env+=PYTEST_ADDOPTS -c {project}" >> "$GITHUB_ENV"
       - name: Setup environment
         if: ${{ !endsWith(matrix.cibw_build, 't-*') }}

From 689440cdabe92a8a407cf96e43847eec1b956ec0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Thu, 3 Apr 2025 15:11:26 -0500
Subject: [PATCH 36/38] CI: disable pytest-run-parallel altogeogether in
 aarch64

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index e327680..6765e99 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -121,7 +121,7 @@ jobs:
         shell: bash -l {0}
         run: |
           echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
-          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=2" >> "$GITHUB_ENV"
+          echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=1" >> "$GITHUB_ENV"
           echo "CIBW_TEST_COMMAND=tox -x testenv.deps+=pytest-run-parallel -x testenv.pass_env+=PYTEST_ADDOPTS -c {project}" >> "$GITHUB_ENV"
       - name: Setup environment
         if: ${{ !endsWith(matrix.cibw_build, 't-*') }}

From e54341fac7984222faec6e789ddc97486e6e88d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Thu, 3 Apr 2025 15:24:42 -0500
Subject: [PATCH 37/38] CI: disable armv7l

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

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 6765e99..9b9964b 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -132,7 +132,7 @@ jobs:
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.23.2
         env:
-          CIBW_ARCHS_LINUX: "aarch64 armv7l"
+          CIBW_ARCHS_LINUX: "aarch64"
           CIBW_BUILD: ${{ matrix.cibw_build }}
           CIBW_SKIP: "cp*-musllinux*"
           CIBW_ENABLE: cpython-freethreading

From 022d53815abf97e6eb49d0be3a27c74541c782ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edgar=20Andr=C3=A9s=20Margffoy=20Tuay?= <andfoy@gmail.com>
Date: Wed, 9 Apr 2025 16:43:32 -0500
Subject: [PATCH 38/38] Address review comments

---
 .github/workflows/build_dist.yml | 2 ++
 tests/block/test_block_0.py      | 3 ++-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/build_dist.yml b/.github/workflows/build_dist.yml
index 9b9964b..b907acc 100644
--- a/.github/workflows/build_dist.yml
+++ b/.github/workflows/build_dist.yml
@@ -120,6 +120,8 @@ jobs:
         if: ${{ endsWith(matrix.cibw_build, 't-*') }}
         shell: bash -l {0}
         run: |
+          # Variables are set in order to be passed down to both cibuildwheel and the
+          # Docker image spawned by that action
           echo "CIBW_BEFORE_TEST=pip install pytest pytest-run-parallel" >> "$GITHUB_ENV"
           echo "CIBW_ENVIRONMENT=PYLZ4_USE_SYSTEM_LZ4=False PYTEST_ADDOPTS=--parallel-threads=1" >> "$GITHUB_ENV"
           echo "CIBW_TEST_COMMAND=tox -x testenv.deps+=pytest-run-parallel -x testenv.pass_env+=PYTEST_ADDOPTS -c {project}" >> "$GITHUB_ENV"
diff --git a/tests/block/test_block_0.py b/tests/block/test_block_0.py
index 561b185..a7731c3 100644
--- a/tests/block/test_block_0.py
+++ b/tests/block/test_block_0.py
@@ -93,12 +93,13 @@ def test_2(data, mode, store_size, dictionary):
     (c_kwargs, d_kwargs) = setup_kwargs(mode, store_size)
 
     def copy_buf(data):
-        data_x = data
         if isinstance(data, memoryview):
             data_x = memoryview(copy.deepcopy(data.obj))
         elif isinstance(data, bytearray):
             data_x = bytearray()
             data_x[:] = data
+        else:
+            data_x = data
         return data_x
 
     data_in = [copy_buf(data) for i in range(32)]