diff --git a/src/plugins/sqldrivers/sqlite2/smain.cpp b/src/plugins/sqldrivers/sqlite2/smain.cpp
index 3a5734f8c94..7d971d6e5a5 100644
--- a/src/plugins/sqldrivers/sqlite2/smain.cpp
+++ b/src/plugins/sqldrivers/sqlite2/smain.cpp
@@ -43,6 +43,7 @@
 
 QT_BEGIN_NAMESPACE
 
+// ### Qt6: remove, obsolete since 5.14
 class QSQLite2DriverPlugin : public QSqlDriverPlugin
 {
     Q_OBJECT
diff --git a/src/plugins/sqldrivers/tds/main.cpp b/src/plugins/sqldrivers/tds/main.cpp
index 4aa14446088..18efb22ea45 100644
--- a/src/plugins/sqldrivers/tds/main.cpp
+++ b/src/plugins/sqldrivers/tds/main.cpp
@@ -50,6 +50,7 @@
 QT_BEGIN_NAMESPACE
 
 
+// ### Qt6: remove, obsolete since 4.7
 class QTDSDriverPlugin : public QSqlDriverPlugin
 {
     Q_OBJECT
diff --git a/src/sql/doc/src/sql-driver.qdoc b/src/sql/doc/src/sql-driver.qdoc
index cccce48bb32..c6ac4d17ff3 100644
--- a/src/sql/doc/src/sql-driver.qdoc
+++ b/src/sql/doc/src/sql-driver.qdoc
@@ -54,9 +54,9 @@
          \li Open Database Connectivity (ODBC) - Microsoft SQL Server and other
             ODBC-compliant databases
     \row \li \l{#QPSQL}{QPSQL} \li PostgreSQL (versions 7.3 and above)
-    \row \li \l{#QSQLITE2}{QSQLITE2} \li SQLite version 2
+    \row \li \l{#QSQLITE2}{QSQLITE2} \li SQLite version 2 \note obsolete since Qt 5.14
     \row \li \l{#QSQLITE}{QSQLITE} \li SQLite version 3
-    \row \li \l{#QTDS}{QTDS} \li Sybase Adaptive Server \note obsolete from Qt 4.7
+    \row \li \l{#QTDS}{QTDS} \li Sybase Adaptive Server \note obsolete since Qt 4.7
     \endtable
 
     SQLite is the in-process database system with the best test coverage