The new PECL package pdo_sqlsrv-5.9.0 (stable) has been released at 
https://pecl.php.net/.

Release notes
-------------
[Added]
- Support for PHP 8.0
- Support for macOS Big Sur, Ubuntu 20.04, Ubuntu 20.10 and Alpine 3.12
- Support for GB18030 locale [#1115](
https://github.com/microsoft/msphpsql/pull/1115)
- Feature Request [#924](https://github.com/microsoft/msphpsql/issues/924) - 
extended PDO errorinfo to include [additional odbc messages if 
available](https://docs.microsoft.com/sql/connect/php/pdo-errorinfo) - pull 
request [#1133](
https://github.com/microsoft/msphpsql/pull/1133)
- [Data Classification with rank 
info](https://github.com/microsoft/msphpsql/wiki/Features#dataClass), which 
requires [MS ODBC Driver 
17.4.2+](https://docs.microsoft.com/sql/connect/odbc/download-odbc-driver-for-sql-server)
 and [SQL Server 2019](https://www.microsoft.com/sql-server/sql-server-2019) or 
an Azure SQL instance that supports it
- [Azure Active Directory Service Principal authentication 
support](https://docs.microsoft.com/sql/connect/php/azure-active-directory), 
which requires [MS ODBC Driver 
17.7+](https://docs.microsoft.com/sql/connect/odbc/download-odbc-driver-for-sql-server)
[Removed]
- Dropped support for PHP 7.2
- Dropped support for macOS High Sierra, Ubuntu 19.10 and Debian 8
[Fixed]
- Pull Request [#1127](https://github.com/microsoft/msphpsql/pull/1127) - 
removed TSRMLS macros in preparation for PHP 8 by remicollet
- Pull Request [#1136](https://github.com/microsoft/msphpsql/pull/1136) - 
improved performance when handling decimal numbers as inputs or outputs and 
removed unncessary conversions for numeric values
- Pull Request [#1143](https://github.com/microsoft/msphpsql/pull/1143) - if an 
exception occurs when executing a query, it will not change the output 
parameters
- Pull Request [#1144](https://github.com/microsoft/msphpsql/pull/1144) - use 
the correct C types when binding output parameters with integer values
- Pull Request [#1146](https://github.com/microsoft/msphpsql/pull/1146) - 
improved performance when fetching numbers using client buffers
- Pull Request [#1165](https://github.com/microsoft/msphpsql/pull/1165) - set 
query timeout without using LOCK TIMEOUT, which saves an extra trip to the 
server
- Issue [#1170](https://github.com/microsoft/msphpsql/issues/1170) - when 
fetching large data types such as ntext, check more than only the display size 
- pull request [#1172](https://github.com/microsoft/msphpsql/pull/1172)
- Pull Request [#1205](https://github.com/microsoft/msphpsql/pull/1205) - 
minimized compilation warnings on Linux and macOS 
- Pull Request [#1209](https://github.com/microsoft/msphpsql/pull/1209) - fixed 
a bug when fetching varbinary max fields as char or wide chars
- Issue [#1210](https://github.com/microsoft/msphpsql/issues/1210) - switched 
from preview to beta terminology to enable Pickle support
- Issue [#1213](https://github.com/microsoft/msphpsql/issues/1213) - the 
MACOSX_DEPLOYMENT_TARGET in config files caused linker errors in macOS Big Sur 
- Pull Request [#1215](https://github.com/microsoft/msphpsql/pull/1215)
- Pull Request [#1226](https://github.com/microsoft/msphpsql/pull/1226) - 
replaced the problematic strlen function 
- Pull Request [#1227](https://github.com/microsoft/msphpsql/pull/1227) - 
addressed static code analyis issues
[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 preview 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)

Package Info
-------------
The Microsoft Drivers for PHP for SQL Server are PHP extensions that allow for 
the reading and writing of SQL Server data from within PHP scripts. The SQLSRV 
extension provides a procedural interface while the PDO_SQLSRV extension 
implements PDO for accessing data in all editions of SQL Server 2012 and later 
(including Azure SQL DB). These drivers rely on the Microsoft ODBC Driver for 
SQL Server to handle the low-level communication with SQL Server.
*This package contains only the PDO_SQLSRV driver.*

Related Links
-------------
Package home: https://pecl.php.net/package/pdo_sqlsrv
   Changelog: https://pecl.php.net/package-changelog.php?package=pdo_sqlsrv
    Download: https://pecl.php.net/get/pdo_sqlsrv-5.9.0.tgz

Authors
-------------
Jay Kint <jayk...@microsoft.com> (lead)
Meet Bhagdev <me...@microsoft.com> (lead)
Marie Barwin (lead)
Jenny Tam (lead)

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