Merge branch 'release-3.0' into db_schema

# Conflicts:
#	composer.lock

Sources/Db/APIs/MySQL.php

@@ -757,7 +757,7 @@ public function connect_errno(): int
 	/**
 	 * {@inheritDoc}
 	 */
-	public function backup_table(string $table, string $backup_table): object
+	public function backup_table(string $table, string $backup_table): object|bool
 	{
 		$table = str_replace('{db_prefix}', $this->prefix, $table);
 

Sources/Db/APIs/PostgreSQL.php

@@ -812,7 +812,7 @@ public function connect_errno(): int
 	/**
 	 * {@inheritDoc}
 	 */
-	public function backup_table(string $table, string $backup_table): object
+	public function backup_table(string $table, string $backup_table): object|bool
 	{
 		$table = str_replace('{db_prefix}', $this->prefix, $table);
 

Sources/Db/DatabaseApiInterface.php

@@ -267,9 +267,9 @@ public function connect_errno(): int;
 	 *
 	 * @param string $table The name of the table to backup
 	 * @param string $backup_table The name of the backup table for this table
-	 * @return resource -the request handle to the table creation query
+	 * @return resource|false -the request handle to the table creation query, false if it failed.
 	 */
-	public function backup_table(string $table, string $backup_table): object;
+	public function backup_table(string $table, string $backup_table): object|bool;
 
 	/**
 	 * This function optimizes a table.

Sources/PackageManager/FtpConnection.php

@@ -46,7 +46,7 @@ class FtpConnection
 	/**
 	 * Create a new FTP connection...
 	 *
-	 * @param string $ftp_server The server to connect to
+	 * @param ?string $ftp_server The server to connect to
 	 * @param int $ftp_port The port to connect to
 	 * @param string $ftp_user The username
 	 * @param string $ftp_pass The password