RELEASE: v1.1.0 (#382)

### Work Item / Issue Reference  
<!-- 
IMPORTANT: Please follow the PR template guidelines below.
For mssql-python maintainers: Insert your ADO Work Item ID below (e.g.
AB#37452)
For external contributors: Insert Github Issue number below (e.g. #149)
Only one reference is required - either GitHub issue OR ADO Work Item.
-->

<!-- mssql-python maintainers: ADO Work Item -->
>
[AB#41191](https://sqlclientdrivers.visualstudio.com/c6d89619-62de-46a0-8b46-70b92a84d85e/_workitems/edit/41191)

<!-- External contributors: GitHub Issue -->
> GitHub Issue: #<ISSUE_NUMBER>

-------------------------------------------------------------------
### Summary   
This pull request updates the `mssql-python` package to version 1.1.0,
introducing several critical bug fixes, enhancements, and improvements
to platform-specific packaging and metadata. The update also removes
unused global connection cleanup logic from the package initialization.
Below are the most important changes:

## Major Enhancements and Bug Fixes

- **Critical Stability and Security Fixes:**  
- Introduced thread-safe encoding/decoding with mutex-based protection
and strict validation for SQL_WCHAR types.
- Fixed a critical double-free issue on Linux, improved UTF-16 string
decoding, ensured connection pooling isolation resets, corrected
connection string escaping, improved NULL parameter array handling,
ensured consistent query timeout, fixed IntegrityError detection, and
improved sensitive parameter filtering.
- **Documentation Update:**  
- Updated the `PyPI_Description.md` to reflect new features,
enhancements, and bug fixes for version 1.1.0.

## Package Initialization and Versioning

- **Version Bump:**  
- Updated the package version from `1.0.0` to `1.1.0` in both
`mssql_python/__init__.py` and `setup.py`.
- **Removed Connection Cleanup Logic:**  
- Eliminated global weakref-based connection tracking and atexit cleanup
logic from `mssql_python/__init__.py`, as it is no longer needed.

## Packaging and Distribution Improvements

- **Platform-Specific Packaging:**  
- Refactored `setup.py` to use consistent double quotes, improved
architecture and platform tag detection, and expanded logic for adding
platform-specific package data for Windows, macOS, and Linux.
- **Metadata Consistency:**  
- Updated all metadata fields (e.g., author, description, classifiers)
and ensured consistent formatting and requirements in `setup.py`.

These changes collectively improve package stability, security, and
cross-platform compatibility, while also ensuring accurate documentation
and streamlined packaging.

Author: jahnvi480

PyPI_Description.md

@@ -35,12 +35,29 @@ PyBind11 provides:
 - Memory-safe bindings
 - Clean and Pythonic API, while performance-critical logic remains in robust, maintainable C++.
 
-## What's new in v1.0.0
+## What's new in v1.1.0
 
-### New Features
+### Enhancements
 
-- *Python 3.14 support* - ensuring compatibility with the latest Python ecosystem.
-- *GA stability* - hardened release engineering, expanded test coverage, and compliance checks for enterprise readiness.
+- **Thread-Safe Encoding/Decoding** - Mutex-based lock protection prevents race conditions in multi-threaded applications with concurrent connections. Strict validation for SQL_WCHAR types and security measures against encoding-based attacks ensure data integrity and application security.
+
+### Critical Bug Fixes
+
+- **Linux Stability** - Fixed critical double-free issue causing segmentation faults during Python garbage collection, significantly improving stability on Linux platforms.
+
+- **Connection Pooling Isolation Level** - Transaction isolation level now explicitly resets to READ COMMITTED when pooled connections are reused, preventing unexpected transaction behavior and isolation level conflicts.
+
+- **Connection String Escaping** - Fixed parser and builder to correctly handle ODBC curly brace escaping rules, enabling proper handling of special characters in passwords and connection values.
+
+- **UTF-16 String Decoding** - Enhanced `connection.getinfo()` to properly decode UTF-16LE strings from SQL Server, eliminating data corruption when retrieving metadata with non-ASCII characters.
+
+- **NULL Parameter Arrays** - Added support for arrays containing only NULL values in `executemany()`, improving batch operation reliability.
+
+- **Query Timeout Consistency** - Refactored timeout handling to set query timeout during cursor initialization, reducing overhead and ensuring consistent timeout application.
+
+- **IntegrityError Detection** - Fixed error handling in `fetchall()` for INSERT statements with OUTPUT clause and multiple VALUES entries.
+
+- **Sensitive Parameter Filtering** - Corrected authentication parameter filtering to properly exclude Trusted_Connection while preserving encryption settings.
 
 For more information, please visit the project link on Github: https://github.com/microsoft/mssql-python
 

mssql_python/__init__.py

@@ -15,7 +15,7 @@
 from .helpers import Settings, get_settings, _settings, _settings_lock
 
 # Driver version
-__version__ = "1.0.0"
+__version__ = "1.1.0"
 
 # Exceptions
 # https://www.python.org/dev/peps/pep-0249/#exceptions

setup.py

@@ -4,60 +4,67 @@
 from setuptools.dist import Distribution
 from wheel.bdist_wheel import bdist_wheel
 
+
 # Custom distribution to force platform-specific wheel
 class BinaryDistribution(Distribution):
     def has_ext_modules(self):
         return True
 
+
 def get_platform_info():
     """Get platform-specific architecture and platform tag information."""
-    if sys.platform.startswith('win'):
+    if sys.platform.startswith("win"):
         # Get architecture from environment variable or default to x64
-        arch = os.environ.get('ARCHITECTURE', 'x64')
+        arch = os.environ.get("ARCHITECTURE", "x64")
         # Strip quotes if present
         if isinstance(arch, str):
-            arch = arch.strip('"\'')
+            arch = arch.strip("\"'")
 
         # Normalize architecture values
-        if arch in ['x86', 'win32']:
-            return 'x86', 'win32'
-        elif arch == 'arm64':
-            return 'arm64', 'win_arm64'
+        if arch in ["x86", "win32"]:
+            return "x86", "win32"
+        elif arch == "arm64":
+            return "arm64", "win_arm64"
         else:  # Default to x64/amd64
-            return 'x64', 'win_amd64'
-            
-    elif sys.platform.startswith('darwin'):
+            return "x64", "win_amd64"
+
+    elif sys.platform.startswith("darwin"):
         # macOS platform - always use universal2
-        return 'universal2', 'macosx_15_0_universal2'
-        
-    elif sys.platform.startswith('linux'):
+        return "universal2", "macosx_15_0_universal2"
+
+    elif sys.platform.startswith("linux"):
         # Linux platform - use musllinux or manylinux tags based on architecture
         # Get target architecture from environment variable or default to platform machine type
         import platform
-        target_arch = os.environ.get('targetArch', platform.machine())
+
+        target_arch = os.environ.get("targetArch", platform.machine())
 
         # Detect libc type
         libc_name, _ = platform.libc_ver()
-        is_musl = libc_name == '' or 'musl' in libc_name.lower()
-        
-        if target_arch == 'x86_64':
-            return 'x86_64', 'musllinux_1_2_x86_64' if is_musl else 'manylinux_2_28_x86_64'
-        elif target_arch in ['aarch64', 'arm64']:
-            return 'aarch64', 'musllinux_1_2_aarch64' if is_musl else 'manylinux_2_28_aarch64'
+        is_musl = libc_name == "" or "musl" in libc_name.lower()
+
+        if target_arch == "x86_64":
+            return "x86_64", "musllinux_1_2_x86_64" if is_musl else "manylinux_2_28_x86_64"
+        elif target_arch in ["aarch64", "arm64"]:
+            return "aarch64", "musllinux_1_2_aarch64" if is_musl else "manylinux_2_28_aarch64"
         else:
-            raise OSError(f"Unsupported architecture '{target_arch}' for Linux; expected 'x86_64' or 'aarch64'.")
+            raise OSError(
+                f"Unsupported architecture '{target_arch}' for Linux; expected 'x86_64' or 'aarch64'."
+            )
+
 
 # Custom bdist_wheel command to override platform tag
 class CustomBdistWheel(bdist_wheel):
     def finalize_options(self):
         # Call the original finalize_options first to initialize self.bdist_dir
         bdist_wheel.finalize_options(self)
-        
+
         # Get platform info using consolidated function
         arch, platform_tag = get_platform_info()
         self.plat_name = platform_tag
         print(f"Setting wheel platform tag to: {self.plat_name} (arch: {arch})")
 
+
 # Find all packages in the current directory
 packages = find_packages()
 
@@ -66,64 +73,71 @@ def finalize_options(self):
 print(f"Detected architecture: {arch} (platform tag: {platform_tag})")
 
 # Add platform-specific packages
-if sys.platform.startswith('win'):
-    packages.extend([
-        f'mssql_python.libs.windows.{arch}',
-        f'mssql_python.libs.windows.{arch}.1033',
-        f'mssql_python.libs.windows.{arch}.vcredist'
-    ])
-elif sys.platform.startswith('darwin'):
-    packages.extend([
-        f'mssql_python.libs.macos',
-    ])
-elif sys.platform.startswith('linux'):
-    packages.extend([
-        f'mssql_python.libs.linux',
-    ])
+if sys.platform.startswith("win"):
+    packages.extend(
+        [
+            f"mssql_python.libs.windows.{arch}",
+            f"mssql_python.libs.windows.{arch}.1033",
+            f"mssql_python.libs.windows.{arch}.vcredist",
+        ]
+    )
+elif sys.platform.startswith("darwin"):
+    packages.extend(
+        [
+            f"mssql_python.libs.macos",
+        ]
+    )
+elif sys.platform.startswith("linux"):
+    packages.extend(
+        [
+            f"mssql_python.libs.linux",
+        ]
+    )
 
 setup(
-    name='mssql-python',
-    version='1.0.0',
-    description='A Python library for interacting with Microsoft SQL Server',
-    long_description=open('PyPI_Description.md', encoding='utf-8').read(),
-    long_description_content_type='text/markdown',
-    author='Microsoft Corporation',
-    author_email='[email protected]',
-    url='https://github.com/microsoft/mssql-python',
+    name="mssql-python",
+    version="1.1.0",
+    description="A Python library for interacting with Microsoft SQL Server",
+    long_description=open("PyPI_Description.md", encoding="utf-8").read(),
+    long_description_content_type="text/markdown",
+    author="Microsoft Corporation",
+    author_email="[email protected]",
+    url="https://github.com/microsoft/mssql-python",
     packages=packages,
     package_data={
         # Include PYD and DLL files inside mssql_python, exclude YML files
-        'mssql_python': [
-            'ddbc_bindings.cp*.pyd',  # Include all PYD files
-            'ddbc_bindings.cp*.so',  # Include all SO files
-            'libs/*', 
-            'libs/**/*', 
-            '*.dll'
+        "mssql_python": [
+            "ddbc_bindings.cp*.pyd",  # Include all PYD files
+            "ddbc_bindings.cp*.so",  # Include all SO files
+            "libs/*",
+            "libs/**/*",
+            "*.dll",
         ]
     },
     include_package_data=True,
     # Requires >= Python 3.10
-    python_requires='>=3.10',
+    python_requires=">=3.10",
     # Add dependencies
     install_requires=[
-        'azure-identity>=1.12.0',  # Azure authentication library
+        "azure-identity>=1.12.0",  # Azure authentication library
     ],
     classifiers=[
-        'Operating System :: Microsoft :: Windows',
-        'Operating System :: MacOS',
-        'Operating System :: POSIX :: Linux',
+        "Operating System :: Microsoft :: Windows",
+        "Operating System :: MacOS",
+        "Operating System :: POSIX :: Linux",
     ],
     zip_safe=False,
     # Force binary distribution
     distclass=BinaryDistribution,
     exclude_package_data={
-        '': ['*.yml', '*.yaml'],  # Exclude YML files
-        'mssql_python': [
-            'libs/*/vcredist/*', 'libs/*/vcredist/**/*',  # Exclude vcredist directories, added here since `'libs/*' is already included`
+        "": ["*.yml", "*.yaml"],  # Exclude YML files
+        "mssql_python": [
+            "libs/*/vcredist/*",
+            "libs/*/vcredist/**/*",  # Exclude vcredist directories, added here since `'libs/*' is already included`
         ],
     },
     # Register custom commands
     cmdclass={
-        'bdist_wheel': CustomBdistWheel,
+        "bdist_wheel": CustomBdistWheel,
     },
 )