ClassLoader deprecated
A ClassLoader is an autoloader for class files that can be installed on the SPL autoload stack. It is a class loader that either loads only classes of a specific namespace or all namespaces and it is suitable for working together with other autoloaders in the SPL autoload stack.
Lexer deprecated
Base class for writing simple lexers, i.e. for creating small DSLs.
Version deprecated
Class to store and retrieve the version of Doctrine.


Comparable interface that allows to compare two value objects to each other for similarity.
Contract for classes that provide the service of notifying listeners of changes to their properties.
Contract for classes that are potential listeners of a NotifyPropertyChanged implementor.


CommonException deprecated
Base exception class for package Doctrine\Common.