CHANGELOG
4.4.0
- [BC BREAK] Removed 
NamedAddress (Address now supports a name) 
- Added PHPUnit constraints
 
- Added 
AbstractPart::asDebugString() 
- Added 
Address::fromString() 
4.3.3
- [BC BREAK] Renamed method 
Headers::getAll() to Headers::all(). 
4.3.0
- Introduced the component as experimental