Backport removal of legacy platforms and drivers from master

.appveyor.yml

@@ -18,11 +18,6 @@ cache:
 ## Build matrix for lowest and highest possible targets
 environment:
   matrix:
-  - db: mssql
-    driver: sqlsrv
-    db_version: sql2008r2sp2
-    coverage: yes
-    php: 7.3
   - db: mssql
     driver: sqlsrv
     db_version: sql2012sp1

.scrutinizer.yml

@@ -21,7 +21,7 @@ before_commands:
 tools:
     external_code_coverage:
         timeout: 3600
-        runs: 28 # 23x Travis (jobs with COVERAGE=yes) + 3x AppVeyor (jobs with coverage=yes) + 2x ContinuousPHP
+        runs: 26 # 21x Travis (jobs with COVERAGE=yes) + 3x AppVeyor (jobs with coverage=yes) + 2x ContinuousPHP
 
 filter:
     excluded_paths:

.travis.yml

@@ -95,22 +95,6 @@ jobs:
     - stage: Test
       php: 7.3
       env: DB=mariadb.mysqli.docker IMAGE=mariadb:10.3 COVERAGE=yes
-    - stage: Test
-      dist: trusty
-      php: 7.3
-      env: DB=pgsql POSTGRESQL_VERSION=9.2 COVERAGE=yes
-      services:
-        - postgresql
-      addons:
-        postgresql: "9.2"
-    - stage: Test
-      dist: trusty
-      php: 7.3
-      env: DB=pgsql POSTGRESQL_VERSION=9.3 COVERAGE=yes
-      services:
-        - postgresql
-      addons:
-        postgresql: "9.3"
     - stage: Test
       php: 7.3
       env: DB=pgsql POSTGRESQL_VERSION=9.4 COVERAGE=yes

UPGRADE.md

@@ -1,5 +1,21 @@
 # Upgrade to 3.0
 
+## BC BREAK: Removed support for PostgreSQL 9.3 and older
+
+DBAL now requires PostgeSQL 9.4 or newer, support for unmaintained versions has been dropped.
+If you are using any of the legacy versions, you have to upgrade to a newer PostgreSQL version (9.6+ is recommended).
+`Doctrine\DBAL\Platforms\PostgreSqlPlatform` and `Doctrine\DBAL\Platforms\Keywords\PostgreSQLKeywords` now represent PostgreSQL 9.4.
+
+The following classes have been removed:
+
+ * `Doctrine\DBAL\Platforms\PostgreSQL94Platform`
+ * `Doctrine\DBAL\Platforms\Keywords\PostgreSQL94Keywords`
+
+## BC BREAK: Removed support for MariaDB 10.0 and older
+
+DBAL now requires MariaDB 10.1 or newer, support for unmaintained versions has been dropped.
+If you are using any of the legacy versions, you have to upgrade to a newer MariaDB version (10.1+ is recommended).
+
 ## BC BREAK: PingableConnection and ServerInfoAwareConnection interfaces now extend Connection
 
 All implementations of the `PingableConnection` and `ServerInfoAwareConnection` interfaces have to implement the methods defined in the `Connection` interface as well.
@@ -8,6 +24,64 @@ All implementations of the `PingableConnection` and `ServerInfoAwareConnection`
 
 All implementations of the `VersionAwarePlatformDriver` interface have to implement the methods defined in the `Driver` interface as well.
 
+## BC BREAK: Removed MsSQLKeywords class
+
+The `Doctrine\DBAL\Platforms\MsSQLKeywords` class has been removed.
+Please use `Doctrine\DBAL\Platforms\SQLServerPlatform `instead.
+
+## BC BREAK: Removed PDO DB2 driver
+
+This PDO-based IBM DB2 driver (built on top of `pdo_ibm` extension) has already been unsupported as of 2.5, it has been now removed.
+
+The following class has been removed:
+
+ * `Doctrine\DBAL\Driver\PDOIbm\Driver`
+
+## BC BREAK: Removed support for SQL Anywhere 12 and older
+
+DBAL now requires SQL Anywhere 16 or newer, support for unmaintained versions has been dropped.
+If you are using any of the legacy versions, you have to upgrade to a newer SQL Anywhere version (16+).
+`Doctrine\DBAL\Platforms\SQLAnywherePlatform` and `Doctrine\DBAL\Platforms\Keywords\SQLAnywhereKeywords` now represent SQL Anywhere 16.
+
+The following classes have been removed:
+
+ * `Doctrine\DBAL\Platforms\SQLAnywhere11Platform`
+ * `Doctrine\DBAL\Platforms\SQLAnywhere12Platform`
+ * `Doctrine\DBAL\Platforms\SQLAnywhere16Platform`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLAnywhere11Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLAnywhere12Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLAnywhere16Keywords`
+
+## BC BREAK: Removed support for SQL Server 2008 and older
+
+DBAL now requires SQL Server 2012 or newer, support for unmaintained versions has been dropped.
+If you are using any of the legacy versions, you have to upgrade to a newer SQL Server version.
+`Doctrine\DBAL\Platforms\SQLServerPlatform` and `Doctrine\DBAL\Platforms\Keywords\SQLServerKeywords` now represent SQL Server 2012.
+
+The following classes have been removed:
+
+ * `Doctrine\DBAL\Platforms\SQLServer2005Platform`
+ * `Doctrine\DBAL\Platforms\SQLServer2008Platform`
+ * `Doctrine\DBAL\Platforms\SQLServer2012Platform`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLServer2005Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLServer2008Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\SQLServer2012Keywords`
+
+The `AbstractSQLServerDriver` class and its subclasses no longer implement the `VersionAwarePlatformDriver` interface.
+
+## BC BREAK: Removed support for PostgreSQL 9.2 and older
+
+DBAL now requires PostgeSQL 9.3 or newer, support for unmaintained versions has been dropped.
+If you are using any of the legacy versions, you have to upgrade to a newer PostgreSQL version (9.6+ is recommended).
+`Doctrine\DBAL\Platforms\PostgreSqlPlatform` and `Doctrine\DBAL\Platforms\Keywords\PostgreSQLKeywords` now represent PostgreSQL 9.3.
+
+The following classes have been removed:
+
+ * `Doctrine\DBAL\Platforms\PostgreSQL91Platform`
+ * `Doctrine\DBAL\Platforms\PostgreSQL92Platform`
+ * `Doctrine\DBAL\Platforms\Keywords\PostgreSQL91Keywords`
+ * `Doctrine\DBAL\Platforms\Keywords\PostgreSQL92Keywords`
+
 ## BC BREAK: Removed Doctrine\DBAL\Version
 
 The `Doctrine\DBAL\Version` class is no longer available: please refrain from checking the DBAL version at runtime.
@@ -49,6 +123,10 @@ After:
     $stmt->bindValue(1, 1, ParameterType::INTEGER);
     $stmt->fetchAll(FetchMode::COLUMN);
 
+## BC BREAK: Removed Drizzle support
+
+The Drizzle project is abandoned and is therefore not supported by Doctrine DBAL anymore.
+
 ## BC BREAK: Removed dbal:import CLI command
 
 The `dbal:import` CLI command has been removed since it only worked with PDO-based drivers by relying on a non-documented behavior of the extension, and it was impossible to make it work with other drivers.