Changes
[Added]
- Support for PHP 8.1
- Support for macOS Monterey, Debian 11, Ubuntu 21.04 and 21.10, Alpine 3.13, 3.14 and 3.15
- Support for Apple M1 ARM64 hardware -- requires [MS ODBC Driver 17.8+](https://docs.microsoft.com/sql/connect/odbc/linux-mac/install-microsoft-odbc-driver-sql-server-macos?view=sql-server-ver15)
- Adjusted connection keyword and value validation for more flexibility
- Feature Request [#795](https://github.com/microsoft/msphpsql/issues/795) - adding support for [Table-valued parameters](https://github.com/Microsoft/msphpsql/wiki/Features#tvp)
- Feature Request [#1320](https://github.com/microsoft/msphpsql/issues/1320) - allow PDO::ATTR_EMULATE_PREPARES to be set at the connection level
[Removed]
- Support for PHP 7.3
- Support for Ubuntu 16.04, Alpine 3.11 and Alpine 3.12
[Fixed]
- Issue [#1244](https://github.com/microsoft/msphpsql/issues/1244) - use lower case for object names for PDO::lastInsertId() - pull request [#1245](https://github.com/microsoft/msphpsql/pull/1245) by morozov
- Pull request [#1251](https://github.com/microsoft/msphpsql/pull/1251) - simplified implementations of last insert id and quote
- Issue [#1258](https://github.com/microsoft/msphpsql/issues/1258) - updated pdo_sqlsrv_get_driver_methods as per documentation - pull request [#1259](https://github.com/microsoft/msphpsql/pull/1259)
- Pull request [#1260](https://github.com/microsoft/msphpsql/pull/1260) - cleaned up redundant code
- Issue [#1261](https://github.com/microsoft/msphpsql/issues/1261) - simplified get_field_as_string and made it more robust - pull request [#1265](https://github.com/microsoft/msphpsql/pull/1265)
- Pull request [#1267](https://github.com/microsoft/msphpsql/pull/1267) - replaced the obsolete MACRO ZVAL_NEW_ARR with array_init
- Pull request [#1275](https://github.com/microsoft/msphpsql/pull/1275) - fixed warning compiling core_stmt.cpp by mlocati
- Pull request [#1288](https://github.com/microsoft/msphpsql/pull/1288) - applied mask to pdo quote for binary inputs
- Pull request [#1290](https://github.com/microsoft/msphpsql/pull/1290) - updated list of supported processor architecture
- Issue [#1307](https://github.com/microsoft/msphpsql/issues/1307) - added TVP support to non-procedure statements
- Issue [#1310](https://github.com/microsoft/msphpsql/issues/1310) - adjusted sql_data_type and column size for NULL parameters - pull request [#1311](https://github.com/microsoft/msphpsql/pull/1311) by gjcarrette
- Pull request [#1326](https://github.com/microsoft/msphpsql/pull/1326) - php drivers simply pass Azure AD Authentication to ODBC driver, which will verify the settings
- Issue [#1329](https://github.com/microsoft/msphpsql/issues/1329) - reset sql type and column size for input params
- Issue [#1331](https://github.com/microsoft/msphpsql/issues/1331) - restore PDO::ATTR_ERRMODE if calling PDO::lastInsertId() call fails - pull request [#1330](https://github.com/microsoft/msphpsql/pull/1330) by mpyw and pull request [#1332](https://github.com/microsoft/msphpsql/pull/1332)
[Limitations]
- No support for inout / output params when using sql_variant type
- No support for inout / output params when formatting decimal values
- In Linux and macOS, setlocale() only takes effect if it is invoked before the first connection. Attempting to set the locale after connecting will not work
- Always Encrypted requires [MS ODBC Driver 17+](https://docs.microsoft.com/sql/connect/odbc/linux-mac/installing-the-microsoft-odbc-driver-for-sql-server)
- Only Windows Certificate Store and Azure Key Vault are supported. Custom Keystores are not yet supported
- Issue [#716](https://github.com/Microsoft/msphpsql/issues/716) - With Always Encrypted enabled, named parameters in subqueries are not supported
- Issue [#1050](https://github.com/microsoft/msphpsql/issues/1050) - With Always Encrypted enabled, insertion requires the column list for any tables with identity columns
- [Always Encrypted limitations](https://docs.microsoft.com/sql/connect/php/using-always-encrypted-php-drivers#limitations-of-the-php-drivers-when-using-always-encrypted)
[Known Issues]
- This release requires ODBC Driver 17.4.2 or above. Otherwise, a warning about failing to set an attribute may be suppressed when using an older ODBC driver.
- Connection pooling on Linux or macOS is not recommended with [unixODBC](http://www.unixodbc.org/) < 2.3.7
- When pooling is enabled in Linux or macOS
- unixODBC <= 2.3.4 (Linux and macOS) might not return proper diagnostic information, such as error messages, warnings and informative messages
- due to this unixODBC bug, fetch large data (such as xml, binary) as streams as a workaround. See the examples [here](https://github.com/Microsoft/msphpsql/wiki/Features#pooling)