We made changes to the Magento database to make it easier to understand module schema and data versions. This in turn makes it easier for you to code your module's installations and upgrades. In particular:

• The core_resource table is now named setup_module
• Resources in the table are replaced by module names. For example, catalog_setup is now Magento_Catalog, which exactly matches the module name.
• The following fields in the setup_module table have new names:
  • code is now module
  • version is now schema_version

Old way:

	code                     | version   | data_version|
	-----------------------------------------------------------
	catalog_setup            | 2.0.0     | 2.0.0   
	checkoutagreements_setup | 2.0.0     | 2.0.0   
	checkout_setup           | 2.0.0     | 2.0.0   
	cms_setup                | 2.0.0.1   | 2.0.0.1 

New way:

	module                       | schema_version        | data_version|
	------------------------------------------------------------------------
	Magento_Catalog              | 2.0.0.1               | 2.0.0.1
	Magento_CatalogEvent         | 2.0.0                 | 2.0.0
	Magento_CatalogImportExport  | 2.0.0                 | 2.0.0
	Magento_CatalogInventory     | 2.0.0                 | 2.0.0
	Magento_CatalogPermissions   | 2.0.0                 | 2.0.0