1.9.3

Enhancements

• Added NormalizeSchemas configuration property to the Avro, Json and Protobuf serdes.

Fixes

• Schema Registry authentication now works with passwords that contain the ':' character (luismedel).
• Added missing librdkafka internal and broker error codes to the ErrorCode enum.

1.9.2

Enhancements

• References librdkafka.redist 1.9.2 which includes an Apple M1 librdkafka build.
• Added ACL AdminClient operations (CreateAcls, DescribeAcls, DeleteAcls) (emasab).
• Added DeleteGroups to AdminClient (3schwartz).
• Enhanced the Avro Specific Deserializer to ignore the type namespace (sergemat).
• Improved efficiency of the statistics handler (VladimirTyrin).

Fixes

• The AdminClient poll loop no longer terminates when a request results in an error (emasab).
• Upgraded Newtonsoft.Json to 13.0.1 to address a security vulnerability in 9.0.1.

v1.9.0

Enhancements

• References librdkafka.redist 1.9.0. Refer to the librdkafka release notes
  for a complete list of changes, enhancements, fixes and upgrade considerations.
• References Apache.Avro 1.11.0. Refer to the release notes for further information (JanReimerD).
• Added support for serializing and deserializing null in Avro serdes (YairHalberstadt).
• Enhanced CachedSchemaRegistryClient to allow for user-implemented authentication schemes (henrydaly).
• Reduced memory use when producing with delivery reports disabled (TrickyCat).

Fixes

• Resolved incompatibility with Apple M1 processors (dkaukov).
• No longer crashes on Alpine Linux when MUSL is installed (shurivich).
• JSON validation exception messages now properly include failing paths (drinehimer).
• Upgraded Google.Protobuf dependency to 3.15.0 (CVE-2021-22570).
• Resolved memory leak in AdminClient response handler (emasab).
• Resolved memory leak in Producer.SendOffsetsToTransaction.

Upgrade Considerations

• The earliest supported .NET Framework version is now 4.6.2, previously this was 4.5 (bjornbouetsmith).

v1.8.2

Enhancements and Fixes

• References librdkafka.redist 1.8.2. Refer to the librdkafka release notes for a complete list of changes, enhancements, fixes and upgrade considerations.
• Added the SslCaPem configuration property to specify a CA certificate using a PEM string.

v1.8.1

Enhancements

• Updated NJsonSchema to v10.5.2.

v1.8.0

Enhancements

• References librdkafka.redist 1.8.0. Refer to the librdkafka release notes
  for a complete list of changes, enhancements, fixes and upgrade considerations.
• Added the UseLatestVersion configuration property to the Protobuf, JSON Schema and Avro serdes (rayokota).

Fixes

• Breaking Change: Updated the message framing format used by the Protobuf serdes (ProtobufSerializer and ProtobufDeserializer) to be
  compatible with the Java Protobuf serdes (message indices now use zigzag encoding). Note: This framing encodes schema metadata, enabling
  integration with Confluent Schema Registry. To disable, set the UseDeprecatedFormat configuration property to true.
  (rayokota).

Security

• Upgraded the bundled zlib version from 1.2.8 to 1.2.11 in the librdkafka.redist NuGet package. The updated zlib version fixes
  CVEs: CVE-2016-9840, CVE-2016-9841, CVE-2016-9842, CVE-2016-9843 See confluentinc/librdkafka#2934 for more information.

v1.7.0

Enhancements

• References librdkafka.redist 1.7.0. Refer to the librdkafka release notes for a complete
  list of changes, enhancements, fixes and upgrade considerations.
• Added OAuth support to AdminClient (jerive)

Fixes

• Resolved a schema caching bug (#1587) in CachedSchemaRegistryClient.GetSchemaIdAsync (jeremy001181).
• Fixed a configuration error in the Web example (cjgalione).

Security

• Updated System.Net.Http dependency to v4.3.4 (CVE-2018-8292)

v1.6.3

Fixes

• References Apache.Avro v1.10.2, which resolves an issue with large string deserialization AVRO-3005.

v1.6.2

Enhancements

• References librdkafka.redist 1.6.1. Refer to the 1.6.0 and 1.6.1 release notes for more information. Headline features:
  • KIP-429: Incremental rebalancing.
  • KIP-447: Producer scalability for exactly once semantics.
  • KIP-480: Sticky partitioner.
• KIP-22: Support for custom partitioners.
• Confluent.Kafka can now be used with Mono on Linux and MacOS. Note: Mono is not a supported runtime.
• The debian9-librdkafka.so build of librdkafka has been replaced with a more portable one: centos6-librdkafka.so (note: Debian 9 is still supported).
• Exceptions thrown by Producer.Produce now include an inner exception with additional context on the error (joostas).
• Added ConfigureAwait(false) to async methods in the Avro Serdes.
• Added IsInvalid property to Handle class (volgunin).

Fixes

• Fixed race condition in ProtobufSerializer (yurii-hunter).

v1.5.0

• References librdkafka 1.5.0 which brings many small improvements and bug fixes (and no new large features). Refer to the release notes for more information.
• Added support for Schema Registry SSL Authentication (@dinegri).