Dagger 2.2

• dagger.mapkeys moved to dagger.multibindings and all @MapKey
  implementations now correctly have @Beta applied
• Better error messages for multibindings
• Compiler bug fixes!

Dagger 2.1

• Correctly handle @Components that inject generated types
• Adds @ProductionSubcomponent and @ProductionScope
• Allow the production Executor to be bound with @Production
• Allow multiple scope annotations on components
• A component's subcomponents’ (and their subcomponents’) simple names no longer need to be unique
• Adds the ability to depend on subcomponent builders
• GWT Integration
• Producers monitoring
• Multibindings for producers
• Add common @MapKey annotations to dagger.mapkeys. These annotations are
  not, but should be marked @Beta (since the @MapKey itself is beta).
• Lots of bug fixes!

Dagger 2.0.2

A patch release, most crucially including:

• A fix to the way processor validation of types is done that permits dagger to play
  more nicely with other processors, avoiding over-validating aspects that it doesn't
  need, which may yet not have been generated by other processors in a different round
  of processing.
• Some improved error reporting for edge-cases
• Fix to prevent incompatible versions of Guava on the classpath from blowing up processing
• Support a more robust set of types for map keys in map bindings (primitive types, etc.)

Dagger 2.0.1

A maintenance release fixing immediate issues following the Dagger 2.0 release, including:

• Speed up Graph Validation (reduce build times by 10s of seconds on sampled large projects)
• Generate correct code for @MapKey annotation types (beta)
• Fix to properly emit code for class literal values in @MapKey annotations.
• Fix for injecting component dependencies
• Fixes to generated code to account for differences in generics handling in ecg vs. javac.
• Subcomponents can now be abstract classes.
• Subcomponents now properly build the object graph in some cases involving explicit bindings
  and (sub)components without scope.
• Improve runtime performance of SetFactory (set multibindings)
• Other smaller fixes, refactorings, etc.

Dagger 2.0 Initial Release

The initial release of the 2.0 code-line, supporting:

• @Component interfaces representing a custom API to access a graph of objects
• JSR-330 injection automation using @Inject signals, @Qualifiers
• Simple bindings of implementations to interfaces, custom provision of objects, and set-bindings
• Compile-time validation of graph structure (cycles, missing bindings, duplicate bindings)
• Generation of
  • backing implementations for components
  • factories for @Inject constructors and modules
  • members-injectors for @Inject methods and fields
• Beta support for
  • Map bindings
  • Producers