librdkafka v1.5.3

librdkafka v1.5.3 is a maintenance release.

Upgrade considerations

• CentOS 6 is now EOL and is no longer included in binary librdkafka packages,
  such as NuGet.

Fixes

General fixes

• Fix a use-after-free crash when certain coordinator requests were retried.

Consumer fixes

• Consumer would not filter out messages for aborted transactions
  if the messages were compressed (#3020).
• Consumer destroy without prior close() could hang in certain
  cgrp states (@gridaphobe, #3127).
• Fix possible null dereference in Message::errstr() (#3140).
• The roundrobin partition assignment strategy could get stuck in an
  endless loop or generate uneven assignments in case the group members
  had asymmetric subscriptions (e.g., c1 subscribes to t1,t2 while c2
  subscribes to t2,t3). (#3159)

Checksums

Release asset checksums:

• v1.5.3.zip SHA256 3f24271232a42f2d5ac8aab3ab1a5ddbf305f9a1ae223c840d17c221d12fe4c1
• v1.5.3.tar.gz SHA256 2105ca01fef5beca10c9f010bc50342b15d5ce6b73b2489b012e6d09a008b7bf