diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ab0c6435..772132e5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["ubuntu-latest"]
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14", "3.14t"]
         include:
           - os: macos-latest
             python-version: "3.x"
@@ -14,8 +14,8 @@ jobs:
           #   python-version: '3.13'
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/checkout@v7
+      - uses: actions/setup-python@v7
         with:
           python-version: ${{ matrix.python-version }}
           allow-prereleases: true
diff --git a/magic/__init__.py b/magic/__init__.py
index 851b717f..14d18968 100644
--- a/magic/__init__.py
+++ b/magic/__init__.py
@@ -18,11 +18,7 @@
 
 import sys
 import os
-import glob
-import ctypes
-import ctypes.util
 import threading
-import logging
 
 from ctypes import c_char_p, c_int, c_size_t, c_void_p, byref, POINTER
 
@@ -252,7 +248,7 @@ def from_descriptor(fd, mime=False):
 
 libmagic = loader.load_lib()
 
-magic_t = ctypes.c_void_p
+magic_t = c_void_p
 
 
 def errorcheck_null(result, func, args):
diff --git a/magic/compat.py b/magic/compat.py
index 6ab9400e..32a7b93b 100644
--- a/magic/compat.py
+++ b/magic/compat.py
@@ -8,7 +8,6 @@
 from collections import namedtuple
 
 from ctypes import *
-from ctypes.util import find_library
 
 from . import loader
 
diff --git a/test/python_magic_test.py b/test/python_magic_test.py
index 50760440..26398614 100755
--- a/test/python_magic_test.py
+++ b/test/python_magic_test.py
@@ -10,6 +10,12 @@
 
 import pytest
 
+try:
+    from concurrent.futures import ThreadPoolExecutor
+    HAS_CONCURRENT_FUTURES = True
+except ImportError:  # python 2.7
+    HAS_CONCURRENT_FUTURES = False
+
 # for output which reports a local time
 os.environ["TZ"] = "GMT"
 
@@ -89,8 +95,8 @@ class TestFile:
         (NO_SOFT, ["data"]),
     ],
     b"test.snappy.parquet": [
-        (COMMON_MIME, ["application/octet-stream"]),
-        (COMMON_PLAIN, ["Apache Parquet", "Par archive data"]),
+        (COMMON_MIME, ["application/octet-stream", "application/vnd.apache.parquet"]),
+        (COMMON_PLAIN, ["Apache Parquet", "Apache Parquet file", "Par archive data"]),
         (NO_SOFT, ["data"]),
     ],
     b"test.json": [
@@ -321,6 +327,25 @@ def test_symlink(self):
 
             self.assertRaises(IOError, m_follow.from_file, tmp_broken)
 
+    @unittest.skipIf(not HAS_CONCURRENT_FUTURES, "concurrent.futures not available in Python 2.7")
+    def test_thread_safety(self):
+        """Test that concurrent from_file calls don't crash (would SEGV without global lock)"""
+        filename = os.path.join(self.TESTDATA_DIR, "test.pdf")
+
+        m = magic.Magic(mime=True)
+
+        def check_file(_):
+            result = m.from_file(filename)
+            self.assertEqual(result, "application/pdf")
+            return result
+
+        with ThreadPoolExecutor(100) as executor:
+            results = list(executor.map(check_file, range(100)))
+
+        # All calls should complete successfully
+        self.assertEqual(len(results), 100)
+        self.assertTrue(all(r == "application/pdf" for r in results))
+
 
 if __name__ == "__main__":
     unittest.main()
diff --git a/tox.ini b/tox.ini
index 5c1648b3..01cb7b23 100644
--- a/tox.ini
+++ b/tox.ini
@@ -10,6 +10,8 @@ envlist =
     py311,
     py312,
     py313,
+    py314,
+    py314t,
     mypy
 
 [testenv]