Version 1.28.0 (2021-02-15)

Note that with this release we change RoundRobinBalancer strategy to match Java client behavior. See #1788 for details.

• #1870 - @kvch - Update Kerberos library to latest major
• #1876 - @bai - Update docs, reference pkg.go.dev
• #1846 - @wclaeys - Do not ignore Consumer.Offsets.AutoCommit.Enable config on Close
• #1747 - @XSAM - fix: mock sync producer does not handle the offset while sending messages
• #1863 - @bai - Add support for Kafka 2.7.0 + update lz4 and klauspost/compress dependencies
• #1788 - @kzinglzy - feat[balance_strategy]: announcing a new round robin balance strategy
• #1862 - @bai - Fix CI setenv permissions issues
• #1832 - @ilyakaznacheev - Update Godoc link to pkg.go.dev
• #1822 - @danp - KIP-392: Allow consumers to fetch from closest replica

Version 1.27.2 (2020-10-21)

Improvements

#1750 - @krantideep95 Adds missing mock responses for mocking consumer group

Fixes

#1817 - reverts #1785 - Add private method to Client interface to prevent implementation

Version 1.27.1 (2020-10-07)

Improvements

#1775 - @d1egoaz - Adds a Producer Interceptor example
#1781 - @justin-chen - Refresh brokers given list of seed brokers
#1784 - @justin-chen - Add randomize seed broker method
#1790 - @d1egoaz - remove example binary
#1798 - @bai - Test against Go 1.15
#1785 - @justin-chen - Add private method to Client interface to prevent implementation
#1802 - @uvw - Support Go 1.13 error unwrapping

Fixes

#1791 - @stanislavkozlovski - bump default version to 1.0.0

Version 1.27.0 (2020-08-11)

Improvements

#1466 - @rubenvp8510 - Expose kerberos fast negotiation configuration
#1695 - @KJTsanaktsidis - Use docker-compose to run the functional tests
#1699 - @wclaeys - Consumer group support for manually comitting offsets
#1714 - @bai - Bump Go to version 1.14.3, golangci-lint to 1.27.0
#1726 - @d1egoaz - Include zstd on the functional tests
#1730 - @d1egoaz - KIP-42 Add producer and consumer interceptors
#1738 - @varun06 - fixed variable names that are named same as some std lib package names
#1741 - @varun06 - updated zstd dependency to latest v1.10.10
#1743 - @varun06 - Fixed declaration dependencies and other lint issues in code base
#1763 - @alrs - remove deprecated tls options from test
#1769 - @bai - Add support for Kafka 2.6.0

Fixes

#1697 - @kvch - Use gofork for encoding/asn1 to fix ASN errors during Kerberos authentication
#1744 - @alrs - Fix isBalanced Function Signature

Version 1.26.4 (2020-05-19)

Fixes

• #1701 - @d1egoaz - Set server name only for the current broker
• #1694 - @dnwe - testfix: set KAFKA_HEAP_OPTS for zk and kafka

Version 1.26.3 (2020-05-07)

Fixes

• #1692 - @d1egoaz - Set tls ServerName to fix issue: either ServerName or InsecureSkipVerify must be specified in the tls.Config

Version 1.26.2 (2020-05-06)

⚠️ Known Issues

This release has been marked as not ready for production and may be unstable, please use v1.26.4.

Improvements

• #1560 - @iyacontrol - add sync pool for gzip 1-9
• #1605 - @dnwe - feat: protocol support for V11 fetch w/ rackID
• #1617 - @sladkoff / @dwi-di / @random-dwi - Add support for alter/list partition reassignements APIs
• #1632 - @bai - Add support for Go 1.14
• #1640 - @random-dwi - Feature/fix list partition reassignments
• #1646 - @mimaison - Add DescribeLogDirs to admin client
• #1667 - @bai - Add support for kafka 2.5.0

Fixes

• #1594 - @sladkoff - Sets ConfigEntry.Default flag in addition to the ConfigEntry.Source for Kafka versions > V1_1_0_0
• #1601 - @alrs - fix: remove use of testing.T.FailNow() inside goroutine
• #1602 - @d1egoaz - adds a note about consumer groups Consume method
• #1607 - @darklore - Fix memory leak when Broker.Open and Broker.Close called repeatedly
• #1613 - @wblakecaldwell - Updated "retrying" log message when BackoffFunc implemented
• #1614 - @alrs - produce_response.go: Remove Unused Functions
• #1619 - @alrs - tools/kafka-producer-performance: prune unused flag variables
• #1639 - @agriffaut - Handle errors with no message but error code
• #1643 - @kzinglzy - fix config.net.keepalive
• #1644 - @KJTsanaktsidis - Fix brokers continually allocating new Session IDs
• #1645 - @Stephan14 - Remove broker(s) which no longer exist in metadata
• #1650 - @lavoiesl - Return the response error in heartbeatLoop
• #1661 - @KJTsanaktsidis - Fix "broker received out of order sequence" when brokers die
• #1666 - @KevinJCross - Bugfix: Allow TLS connections to work over socks proxy.

Version 1.26.1 (2020-02-04)

⚠️ This release has been superseded by v1.26.4 and should not be used.

Fetch requests will cause the Kafka broker to continously allocate new Fetch sessions in its cache on every request. Fixed in v1.26.2 via #1644

---

Improvements

• Add requests-in-flight metric (1539)
• Fix misleading example for cluster admin (1595)
• Replace Travis with GitHub Actions, linters housekeeping (1573)
• Allow BalanceStrategy to provide custom assignment data (1592)

Bug Fixes

• Adds back Consumer.Offsets.CommitInterval to fix API (1590)
• Fix error message s/CommitInterval/AutoCommit.Interval (1589)

Version 1.26.0 (2020-01-24)

⚠️ Known Issues

This release has been superceded by v1.26.4 and should not be used.

Fetch requests will cause the Kafka broker to continously allocate new Fetch sessions in its cache on every request. Fixed in v1.26.2 via #1644

---

New Features:

• Enable zstd compression (1574,1582)
• Support headers in tools kafka-console-producer (1549)

Improvements:

• Add SASL AuthIdentity to SASL frames (authzid) (1585).

Bug Fixes:

• Sending messages with ZStd compression enabled fails in multiple ways (1252).
• Use the broker for any admin on BrokerConfig (1571).
• Set DescribeConfigRequest Version field (1576).
• ConsumerGroup flooding logs with client/metadata update req (1578).
• MetadataRequest version in DescribeCluster (1580).
• Fix deadlock in consumer group handleError (1581)
• Fill in the Fetch{Request,Response} protocol (1582).
• Retry topic request on ControllerNotAvailable (1586).

Version 1.25.0 (2020-01-13)

⚠️ This release still contained known issues introduced in v1.24.1 and should not be used

Recommended to upgrade to v1.26.4 or rollback to v1.24.0

Known Issues

• ConsumerGroup flooding logs with client/metadata update req (1544) introduced in v1.24.1
• Unexpected user-specified time limit error (1562) introduced in v1.24.1

---

New Features:

• Support TLS protocol in kafka-producer-performance (1538).
• Add support for kafka 2.4.0 (1552).

Improvements:

• Allow the Consumer to disable auto-commit offsets (1164).
• Produce records with consistent timestamps (1455).

Bug Fixes:

• Fix incorrect SetTopicMetadata name mentions (1534).
• Fix client.tryRefreshMetadata Println (1535).
• Fix panic on calling updateMetadata on closed client (1531).
• Fix possible faulty metrics in TestFuncProducing (1545).