Merge pull request #1418 from Shopify/kafka230

Add support for Kafka 2.3.0

.travis.yml

@@ -13,7 +13,8 @@ env:
   - DEBUG=true
   matrix:
   - KAFKA_VERSION=2.1.1 KAFKA_SCALA_VERSION=2.12
-  - KAFKA_VERSION=2.2.0 KAFKA_SCALA_VERSION=2.12
+  - KAFKA_VERSION=2.2.1 KAFKA_SCALA_VERSION=2.12
+  - KAFKA_VERSION=2.3.0 KAFKA_SCALA_VERSION=2.12
 
 before_install:
 - export REPOSITORY_ROOT=${TRAVIS_BUILD_DIR}

README.md

@@ -21,7 +21,7 @@ You might also want to look at the [Frequently Asked Questions](https://github.c
 Sarama provides a "2 releases + 2 months" compatibility guarantee: we support
 the two latest stable releases of Kafka and Go, and we provide a two month
 grace period for older releases. This means we currently officially support
-Go 1.10 through 1.12, and Kafka 2.0 through 2.2, although older releases are
+Go 1.11 through 1.12, and Kafka 2.0 through 2.3, although older releases are
 still likely to work.
 
 Sarama follows semantic versioning and provides API stability via the gopkg.in service.

utils.go

@@ -160,6 +160,7 @@ var (
 	V2_0_1_0  = newKafkaVersion(2, 0, 1, 0)
 	V2_1_0_0  = newKafkaVersion(2, 1, 0, 0)
 	V2_2_0_0  = newKafkaVersion(2, 2, 0, 0)
+	V2_3_0_0  = newKafkaVersion(2, 3, 0, 0)
 
 	SupportedVersions = []KafkaVersion{
 		V0_8_2_0,
@@ -183,9 +184,10 @@ var (
 		V2_0_1_0,
 		V2_1_0_0,
 		V2_2_0_0,
+		V2_3_0_0,
 	}
 	MinVersion = V0_8_2_0
-	MaxVersion = V2_2_0_0
+	MaxVersion = V2_3_0_0
 )
 
 //ParseKafkaVersion parses and returns kafka version or error from a string