Deprecate SQLSrvStatement::LAST_INSERT_ID_SQL constant.

UPGRADE.md

@@ -23,6 +23,10 @@ Some of the constants were renamed in the process:
 * `DATETIMETZ` -> `DATETIMETZ_MUTABLE`
 * `TIME` -> `TIME_MUTABLE`
 
+## Deprecated `SQLSrvStatement::LAST_INSERT_ID_SQL` constant
+
+The  `Doctrine\DBAL\Driver\SQLSrv\SQLSrvStatement::LAST_INSERT_ID_SQL` constant has been deprecated and will be made private in 3.0.
+
 # Upgrade to 2.9
 
 ## Deprecated `Statement::fetchColumn()` with an invalid index

lib/Doctrine/DBAL/Driver/SQLSrv/SQLSrvStatement.php

@@ -123,6 +123,8 @@ class SQLSrvStatement implements IteratorAggregate, Statement
 
     /**
      * Append to any INSERT query to retrieve the last insert id.
+     *
+     * @deprecated This constant has been deprecated and will be made private in 3.0
      */
     public const LAST_INSERT_ID_SQL = ';SELECT SCOPE_IDENTITY() AS LastInsertId;';