diff --git a/src/Transaction/TransactionInterface.php b/src/Transaction/TransactionInterface.php
index 6d91e0862..d577a290f 100644
--- a/src/Transaction/TransactionInterface.php
+++ b/src/Transaction/TransactionInterface.php
@@ -11,12 +11,15 @@
 use Yiisoft\Db\Exception\NotSupportedException;
 
 /**
- * The TransactionInterface defines the interface for a database transaction. A transaction is a set of operations that
- * are executed as a single logical unit of work. The main benefit of using transactions is that they allow for the
- * atomic, consistent, isolated for multiple database operations.
+ * Defines the interface for a database transaction.
  *
- * The TransactionInterface class defines several methods for working with transactions, such as `begin()`, `commit()`,
- * and `rollBack()`.
+ * A transaction is a set of operations that are executed as a single logical unit of work.
+ *
+ * The main benefit of using transactions is that they allow for the atomic, consistent, isolated for many database
+ * operations.
+ *
+ * The class defines several methods for working with transactions, such as {@see begin()}, {@see commit()}, and
+ * {@see rollBack()}.
  */
 interface TransactionInterface extends LoggerAwareInterface
 {
@@ -50,24 +53,25 @@ interface TransactionInterface extends LoggerAwareInterface
      *
      * @param string|null $isolationLevel The {@see isolation level}[] to use for this transaction.
      * This can be one of {@see READ_UNCOMMITTED}, {@see READ_COMMITTED}, {@see REPEATABLE_READ} and {@see SERIALIZABLE}
-     * but also a string containing DBMS specific syntax to be used after `SET TRANSACTION ISOLATION LEVEL`.
+     * but also a string containing DBMS-specific syntax to be used after `SET TRANSACTION ISOLATION LEVEL`.
+     * If not specified (`null`), the isolation level won't be set explicitly and the DBMS default will be used.
      *
-     * If not specified (`null`) the isolation level will not be set explicitly and the DBMS default will be used.
+     * Note: This setting doesn't work for PostgresSQL, where setting the isolation level before the transaction has no
+     * effect.
      *
-     * > Note: This setting does not work for PostgresSQL, where setting the isolation level before the transaction has
-     * no effect. You have to call {@see setIsolationLevel()} in this case after the transaction has started.
+     * You have to call {@see setIsolationLevel()} in this case after the transaction has started.
      *
-     * > Note: Some (DBMS) allow setting of the isolation level only for the whole connection so subsequent transactions
-     * may get the same isolation level even if you did not specify any. When using this feature you may need to set the
+     * Note: Some (DBMS) allow setting of the isolation level only for the whole connection so later transactions may
+     * get the same isolation level even if you didn't specify any. When using this feature, you may need to set the
      * isolation level for all transactions explicitly to avoid conflicting settings.
      * At the time of this writing affected DBMS are MSSQL and SQLite.
      *
-     * [isolation level]: http://en.wikipedia.org/wiki/Isolation_%28database_systems%29#Isolation_levels
+     * @link http://en.wikipedia.org/wiki/Isolation_%28database_systems%29#Isolation_levels
      *
      * @throws Exception
      * @throws Throwable If DB connection fails or the current transaction is active.
      * @throws InvalidConfigException If {@see \Yiisoft\Db\Connection\ConnectionInterface} is `null` or invalid.
-     * @throws NotSupportedException If the DBMS does not support nested transactions or the transaction is active.
+     * @throws NotSupportedException If the DBMS doesn't support nested transactions or the transaction is active.
      */
     public function begin(string $isolationLevel = null): void;
 
@@ -75,7 +79,7 @@ public function begin(string $isolationLevel = null): void;
      * Commits a transaction.
      *
      * @throws Exception
-     * @throws Throwable If the transaction is not active
+     * @throws Throwable If the transaction isn't active
      */
     public function commit(): void;
 
@@ -105,24 +109,24 @@ public function rollBack(): void;
      * Sets the transaction isolation level for this transaction.
      *
      * This method can be used to set the isolation level while the transaction is already active.
-     * However, this is not supported by all DBMS, so you might rather specify the isolation level directly when calling
+     * However, this isn't supported by all DBMS, so you might rather specify the isolation level directly when calling
      * {@see begin()}.
      *
      * @param string $level The transaction isolation level to use for this transaction.
      * This can be one of {@see READ_UNCOMMITTED}, {@see READ_COMMITTED}, {@see REPEATABLE_READ} and {@see SERIALIZABLE}
-     * but also a string containing DBMS specific syntax to be used after `SET TRANSACTION ISOLATION LEVEL`.
+     * but also a string containing DBMS-specific syntax to be used after `SET TRANSACTION ISOLATION LEVEL`.
      *
      * @throws Exception
-     * @throws Throwable If the transaction is not active.
+     * @throws Throwable If the transaction isn't active.
      *
-     * @see http://en.wikipedia.org/wiki/Isolation_%28database_systems%29#Isolation_levels
+     * @link http://en.wikipedia.org/wiki/Isolation_%28database_systems%29#Isolation_levels
      */
     public function setIsolationLevel(string $level): void;
 
     /**
      * Creates a new savepoint.
      *
-     * @param string $name the savepoint name
+     * @param string $name The savepoint name.
      *
      * @throws Exception
      * @throws InvalidConfigException
@@ -131,9 +135,9 @@ public function setIsolationLevel(string $level): void;
     public function createSavepoint(string $name): void;
 
     /**
-     * Rolls back to a previously created savepoint.
+     * Rolls back to a before created savepoint.
      *
-     * @param string $name The savepoint name
+     * @param string $name The savepoint name.
      *
      * @throws Exception
      * @throws InvalidConfigException
@@ -144,7 +148,7 @@ public function rollBackSavepoint(string $name): void;
     /**
      * Releases an existing savepoint.
      *
-     * @param string $name the savepoint name
+     * @param string $name The savepoint name.
      *
      * @throws Exception
      * @throws InvalidConfigException