Version 1.6.0 (2015-09-04)

New Features:

• Implementation of a consumer offset manager using the APIs introduced in
  Kafka 0.8.2. The API is designed mainly for integration into a future
  high-level consumer, not for direct use, although it is possible to use it
  directly.
  (#461).

Improvements:

• CRC32 calculation is much faster on machines with SSE4.2 instructions,
  removing a major hotspot from most profiles
  (#255).

Bug Fixes:

• Make protocol decoding more robust against some malformed packets generated
  by go-fuzz (#523,
  #525) or found in other ways
  (#528).
• Fix a potential race condition panic in the consumer on shutdown
  (#529).