diff --git a/composer.json b/composer.json
index ba079f1..ae4e27e 100644
--- a/composer.json
+++ b/composer.json
@@ -19,6 +19,7 @@
     "bin-dir": "bin"
   },
   "autoload": {
+    "files": ["src/deprecated.php"],
     "psr-4": {
       "GraphQL\\": "src/"
     }
diff --git a/src/deprecated.php b/src/deprecated.php
new file mode 100644
index 0000000..d80802b
--- /dev/null
+++ b/src/deprecated.php
@@ -0,0 +1,34 @@
+<?php
+if (defined('GRAPHQL_WITH_DEPRECATED') && !GRAPHQL_WITH_DEPRECATED) {
+    return ;
+}
+
+// Renamed as of 8.0:
+class_alias('GraphQL\Language\AST\ArgumentNode', 'GraphQL\Language\AST\Argument');
+class_alias('GraphQL\Language\AST\BooleanValueNode', 'GraphQL\Language\AST\BooleanValue');
+class_alias('GraphQL\Language\AST\DefinitionNode', 'GraphQL\Language\AST\Definition');
+class_alias('GraphQL\Language\AST\DirectiveNode', 'GraphQL\Language\AST\Directive');
+class_alias('GraphQL\Language\AST\DocumentNode', 'GraphQL\Language\AST\Document');
+class_alias('GraphQL\Language\AST\EnumValueNode', 'GraphQL\Language\AST\EnumValue');
+class_alias('GraphQL\Language\AST\FieldNode', 'GraphQL\Language\AST\Field');
+class_alias('GraphQL\Language\AST\FloatValueNode', 'GraphQL\Language\AST\FloatValue');
+class_alias('GraphQL\Language\AST\FragmentDefinitionNode', 'GraphQL\Language\AST\FragmentDefinition');
+class_alias('GraphQL\Language\AST\FragmentSpreadNode', 'GraphQL\Language\AST\FragmentSpread');
+class_alias('GraphQL\Language\AST\InlineFragmentNode', 'GraphQL\Language\AST\InlineFragment');
+class_alias('GraphQL\Language\AST\InlineFragmentNode', 'GraphQL\Language\AST\InlineFragment');
+class_alias('GraphQL\Language\AST\IntValueNode', 'GraphQL\Language\AST\IntValue');
+class_alias('GraphQL\Language\AST\ListTypeNode', 'GraphQL\Language\AST\ListType');
+class_alias('GraphQL\Language\AST\ListValueNode', 'GraphQL\Language\AST\ListValue');
+class_alias('GraphQL\Language\AST\NamedTypeNode', 'GraphQL\Language\AST\NamedType');
+class_alias('GraphQL\Language\AST\NameNode', 'GraphQL\Language\AST\Name');
+class_alias('GraphQL\Language\AST\NonNullTypeNode', 'GraphQL\Language\AST\NonNullType');
+class_alias('GraphQL\Language\AST\ObjectFieldNode', 'GraphQL\Language\AST\ObjectField');
+class_alias('GraphQL\Language\AST\ObjectValueNode', 'GraphQL\Language\AST\ObjectValue');
+class_alias('GraphQL\Language\AST\OperationDefinitionNode', 'GraphQL\Language\AST\OperationDefinition');
+class_alias('GraphQL\Language\AST\SelectionNode', 'GraphQL\Language\AST\Selection');
+class_alias('GraphQL\Language\AST\SelectionSetNode', 'GraphQL\Language\AST\SelectionSet');
+class_alias('GraphQL\Language\AST\StringValueNode', 'GraphQL\Language\AST\StringValue');
+class_alias('GraphQL\Language\AST\TypeNode', 'GraphQL\Language\AST\Type');
+class_alias('GraphQL\Language\AST\ValueNode', 'GraphQL\Language\AST\Value');
+class_alias('GraphQL\Language\AST\VariableDefinitionNode', 'GraphQL\Language\AST\VariableDefinition');
+class_alias('GraphQL\Language\AST\VariableNode', 'GraphQL\Language\AST\Variable');