Improvements

• Ability to provide custom librdkafka path during pecl install (#526, @Wirone)

Bugfixes

• Fixed signature of RdKafka\KafkaConsumer::getMetadata() (#521, @arnaud-lb)

Bugfixes

• Always initialize Message::$headers (#508, @arnaud-lb)

Changes since 5.x

Improvements

• PHP 8.1 support (@remicollet, @ruudk, @nick-zh)
• Added parameter types (when built with PHP>=8.0) (@arnaud-lb)
• Added tentative return types (when built with PHP>=8.1) (@arnaud-lb)

Deprecations

• PHP 8.1: Overloading php-rdkafka methods without specifying a return type will trigger a deprecation message unless annotated with #[\ReturnTypeWillChange]

Changes since 6.0.0RC2

Bugfixes

• Fix newTopic() arginfo (#502, @arnaud-lb)

Bugfixes

• Fix crash in RdKafka\TopicPartition::__construct() (#491, @remicollet)

Bugfixes

• Fix arginfo on getMetadata(), queryWatermarkOffsets() (#494)

Enhancements

• PHP 8.1 support (@ruudk, @remicollet, @nick-zh, @arnaud-lb)

Breaking changes

• Added tentative return types in PHP 8.1 builds

Enhancements

• Add pausePartitions(), resumePartitions() on RdKfaka, RdKafka\KafkaConsumer (#438, @arnaud-lb)
• Clarify error when KafkaConsumer is closed (@zoonru)

Bugfixes

• Fix windows build (#440, @nick-zh)
• Fix crash in RdKafka\Metadata\Topic::getTopic() (#465, @arnaud-lb)

Enhancements

• PHP 8 support (@nick-zh, @arnaud-lb)
• Suport passing an opaque value in produce(), producev() (@arnaud-lb)

Breaking changes

• Dropped PHP 5 support

BREAKING CHANGE: Since version 4.0, the client no longer polls for network
events at shutdown (during object destructor). This behaviour didn't give
enough control to the user in case of server issue, and could cause the script to hang while terminating.

Starting from 4.0, programs MUST call flush() before shutting down, otherwise some messages and callbacks may be lost.

Enhancements

• Enabled features on windows build: headers, purge, murmur (#410, @nick-zh, @cmb69)