change_table.md

layout	group	subgroup	title	menu_title	menu_order	level3_menu_node	level3_subgroup	version	github_link	redirect_from
default	arch-guide	Architectural Basics	Changes to classes and method versions	Changes to classes and method versions	5	level3child	versioning	2.0	architecture/versioning.md	/guides/v1.0/architecture/version_store.html

Changes to classes and method versions

The following table identifies typical Major, Minor and Patch level changes to interfaces and classes.

	Class	Interface
Major change	Class removed Constant added, removed Protected method added, removed Protected method parameter changed Protected property added, removed Public method parameter changed Public property added, removed Public method added, removed	Constant added, removed Interface added, removed Method added, removed Method parameter changed
Minor change	Class added
Patch change	Private method added, removed Private method parameter changed Private method parameter name changed Private property added, removed Protected method parameter name changed Public method parameter name changed	Method parameter name changed

Related topics

• Versioning policy overview

• Magento 2.0 software versions

• Where is version information stored?