Lots of errors after 4.2.2 upgrade

[pityocamptes]

This is on my CMS page at top:

Warning: Declaration of vBCms_Item_Content::setItemId() should be compatible with that of vB_Model::setItemId() in ..../packages/vbcms/item/content.php on line 26

These are in admincp:

Warning: Declaration of vB_Database_Alter_MySQL::add_index() should be compatible with that of vB_Database_Alter::add_index() in ..../includes/class_dbalter.php on line 882

Warning: Declaration of vB_Database_Alter_MySQL::add_field() should be compatible with that of vB_Database_Alter::add_field() in ..../includes/class_dbalter.php on line 882

Warning: Declaration of vB_Database_Alter_MySQL::drop_field() should be compatible with that of vB_Database_Alter::drop_field() in ..../includes/class_dbalter.php on line 882

Warning: Declaration of vB_Database_Alter_MySQL::query() should be compatible with that of vB_Database_Alter::query() in ..../includes/class_dbalter.php on line 882

How do I fix???