This is release 19.0 of GraphQL Java. It contains one breaking change.

It contains one security related bugfix hardening GraphQL Java more against malicious requests: #2892

GraphQL Java now shades Antlr runtime to prevent any further dependency conflicts. Antlr is used internally for parsing and validating of GraphQL requests and SDL. #2854

It includes some performance improvements (#2786, #2769, #2839) and several bugfixes and general improvements.

Breaking change

#2769 is an improvement to reduce object allocation. It can contain a breaking change if you would implement your own ChainedInstrumentation.

Change in behaviour

#2878 introduces i18n for validation error messages, and by default will set locale to the JVM default locale

#2799 changes the behaviour of the AST printer to use the shortest form available for query operation if possible. While semantically this is not a change, it might affect you.

Bugfixes

#2892 Security bugfix to prevent DOS attacks

#2818 Fix silent thread leak for chained instrumentation

#2825 Fixup Introspection input field deprecation filterting

#2842 fix runtime exception for deep async queries

#2856 SchemaPrinter description bugfix

Improvements

#2786 performance improvements for validation

#2854 Shade Antlr Runtime

#2896 Update DataLoader to 3.2.0

#2878 i18n for validation error messages

#2881 Improve SchemaPrinter

#2872 Improve AST compact printing

#2846 Subscription root field valiation

All changes

all PRs: https://github.com/graphql-java/graphql-java/milestone/38?closed=1