| ⇢ | A | LegacyClassAliases added | |
| ⇢ | A | LegacyCompatibilityLayer added | |
| A | ↛ | ClassAliases removed | 
| ⇢ | A | LegacyClassAliases::register() added | |
| ⇢ | A | LegacyClassAliases::registerAbstractSniffAliases() added | |
| ⇢ | A | LegacyClassAliases::registerSniffAliases() added | |
| ⇢ | A | LegacyClassAliases::convertSniffCodeToLegacyClassN... added | |
| ⇢ | A | LegacyCompatibilityLayer::add() added | |
| A | ↛ | ClassAliases::registerAliases() removed | |
| A | ↛ | ClassAliases::registerAbstractSniffAliases() removed | |
| A | ↛ | ClassAliases::registerSniffAliases() removed | |
| A | ↛ | ClassAliases::convertSniffCodeToLegacyClassName() removed |