• Allow to not declare GET item operation
• Add support for the Accept-Patch header
• Make the the maximum_items_per_page attribute consistent with other attributes controlling pagination
• Allow to use a string instead of an array for serializer groups
• Test: Add an helper method to find the IRI of a resource
• Test: Add assertions for testing response against JSON Schema from API resource
• GraphQL: Add support for multipart request so user can create custom file upload mutations (#3041)
• GraphQL: Add support for name converter (#2765)