v4.8.0

Added

• Compose complex input arguments through nested arg resolvers #899
• Add \Nuwave\Lighthouse\Support\Contracts\ArgResolver directive interface #899
• Allow existing mutation directives @create, @update, @upsert and @delete to function
  as nested arg resolvers #899
• Validate at schema build time that the apply argument @rules is an array #1092
• Add support in @whereConditions for IN, IS NULL and BETWEEN operators #1099
• Add ability to define pivot data on nested mutations within sync, syncWithoutDetach and connect #1110
• Allow restricting the columns for @orderBy to a given whitelist and generate
  an enum definition for it #1118
• Allow passing variables in ->graphQL() test helper #1127
• Add missing schema descriptions to some inputs, types, and enums #1131
• Add @guard directive to handle authentication #1135
• Add @whereHasConditions directive to filter query results based on the existence of a relationship #1140

Changed

• Remove \Nuwave\Lighthouse\Execution\MutationExecutor in favour of modular nested arg resolvers #899
• Register the operator enum for @whereConditions programmatically and allow
  overwriting it through a service provider #1099
• Always automatically set the correct argument type when using @whereConditions or @orderBy
  directives #1118
• Implement the name() function generically in the BaseDirective class #1098
• Renamed the @whereConstraints directive to @whereConditions #1140

Fixed

• Enable chained rule provider directives (ProvidesRules) to merge the rules before validating #1082
• Apply nested OR conditions in @whereConditions correctly #1099
• Allow passing null or simply no id when using @upsert #1114

Deprecated

• The argument field within the OrderByClause used for @orderBy will be renamed to column
  in v5 #1118
• Deprecated the @middleware directive, as it violates the boundary between HTTP and GraphQL
  request handling. Use @guard or other field middleware directives instead #1135

Removed

• Remove broken NOT conditional when using @whereConditions #1125