v6.4.0-M3

⭐ New Features

• Add ability to set a filename generator on a ZipTransformer #9452
• Provide first-class configuration support for SpEL IndexAccessor #9436
• Sftp.outboundGateway expression parameter is mandatory even when it's not needed #9427
• Introduce JsonIndexAccessor #9383

🐞 Bug Fixes

• The JdbcMetadataStore does not work well with PostgreSQL and MySQL-based vendors #9481
• MessagingGatewaySupport onInit() not calling super.onInit() #9478
• Spring Integration Smb upload fails to create missing remote directory when running on Windows #9453
• Revise dynamic bean registrations with the IntegrationFlowContext #9442
• TCP/IP: The cached connections are not freed when used with collaborating channel adapters on the client side #9430
• MQTT MqttMessageDeliveredEvent not publish #9428

📔 Documentation

• doc: fix typo: LockRegistrty -> LockRegistry #9443

🔨 Dependency Upgrades

• Bump org.springframework.retry:spring-retry from 2.0.8 to 2.0.9 #9469
• Bump org.springframework.data:spring-data-bom from 2024.0.3 to 2024.0.4 #9468
• Bump org.apache.groovy:groovy-bom from 4.0.22 to 4.0.23 #9467
• Bump debeziumVersion from 2.7.1.Final to 2.7.2.Final #9446
• Bump mongoDriverVersion from 5.1.3 to 5.1.4 #9445
• Bump protobufVersion from 4.27.3 to 4.27.4 #9439

❤️ Contributors

Thank you to all the contributors who worked on this release:

@sshine