Release 0.19.0

See GitHub Release.

Features

• Add subquery execution metric for ExecutionHandle rollout validation (efd8e105) by @skevy
• add Engine.executeSelectionSet API with three-tier architecture (2d4eb1eb) by @skevy
• implement QueryPlan.buildFromSelections() for subquery execution (eedd964c) by @skevy
• add foundation for subquery execution via ExecutionHandle (88e95bd6) by @skevy
• add micronaut-starter with serve-only DI support by @walter.phillips

Bug Fixes

• Use HEAD instead of release tag for changelog generation (02930859) by @geovannefduarte
• resolve GraphiQL introspection errors for directives with no arguments by @walter.phillips
• Fetch full history and tags for changelog generation (d46d7fe4) by @geovannefduarte

Documentation

• Add release and announcements sections to website by @ryan.tanner

Testing

• Add ctx.query/ctx.mutation feature tests and reorganize test suite (91505f2c) by @skevy

Chores

• Simplify ViaductSchema type hierarchies [1/n] (67c4c86e) by @rstata
• Moves checker dispatcher to runtime (75eb2816) by @kristileka
• Deprecate StandardViaduct getEngine and mkEngineExecutionContext (e8eb9bb2) by @geovannefduarte
• Add support for custom root schema types in Viaduct codegen (78f3130e) by @catacraciun

Continuous Integration

• Install python dependencies in release workflow by @ryan.tanner

Build System

• integrate binary schema into viaduct build system (2ace7b44) by @diwas