Jackson Release 2.6

Version 2.6.0 was released July 17th, 2015. It is a "minor" release following 2.5, meaning that it adds new functionality but be backwards compatible with earlier 2.x releases.

Patches

Beyond initial 2.6.0 (described here), following patch releases have been made or are planned:

• 2.6.1 (09-Aug-2015)

Changes: compatibility

No changes to JDK requirements or baseline requirements/supports for external platforms (like Android or Scala versions)

Changes, core

Streaming

• #137: Allow filtering content read via JsonParser by specifying JsonPointer; uses new class com.fasterxml.jackson.core.filter.FilteringParserDelegate (and related, TokenFilter)
• #177: Add a check so JsonGenerator.writeString() won't work if writeFieldName() expected.
• #182: Inconsistent TextBuffer.getTextBuffer() behavior
• #185: Allow filtering content written via JsonGenerator by specifying JsonPointer; uses new class com.fasterxml.jackson.core.filter.FilteringGeneratorDelegate (and related, TokenFilter)
• #188: JsonParser.getValueAsString() should return field name for JsonToken.FIELD_NAME, not null
• #189: Add JsonFactory.Feature.USE_THREAD_LOCAL_FOR_BUFFER_RECYCLING (default: true), which may be disabled to prevent use of ThreadLocal-based buffer recyling.
• #195: Add JsonGenerator.getOutputBuffered() to find out amount of content buffered, not yet flushed.
• #196: Add support for FormatFeature extension, for format-specifc Enum-backed parser/generator options
• Other:
  • Minor improvement to construction of "default PrettyPrinter": now overridable by data format modules
  • Implement a new yet more optimized symbol table for byte-backed parsers
  • Add JsonParser.Feature.IGNORE_UNDEFINED, useful for data formats like protobuf

Databind

• #312: Support Type Id mappings where two ids map to same Class
• #649: Make BeanDeserializer use new parser.nextFieldName() and .hasTokenId() methods
• #688: Provide a means for an ObjectMapper to discover mixin annotation classes on demand
• #696: Copy constructor does not preserve _injectableValues
• #700: Cannot Change Default Abstract Type Mapper from LinkedHashMap
• #725: Auto-detect multi-argument constructor with implicit names if it is the only visible creator
• #727: Improve ObjectWriter.forType() to avoid forcing base type for container types

Changes, JAX-RS

• #39: Build alternate jars with qualifier "no-metainf-services", which do NOT include META-INF/services metadata for auto-registration