v6.0.0-RC1

⭐ New features

• Add support for local chunking #5021
• Add remote step execution support #5024
• Add shutdown hook to gracefully stop job executions on sigterm #5028
• Add support for Jackson 3 #4842
• Support SEDA with Spring Integration MessageChannels #4719
• Use existing ItemWriter with CompositeItemWriter expecting different item types #4735

🚀 Enhancements

• Missing comma in StepExecution#getSummary #5025
• Improve performance of DefaultFieldSet.indexOf() method #4930
• Improve MessageChannelPartitionHandler::receiveReplies #4776

🐞 Bug fixes

• Spring batch terminate in started status after sigterm #4023
• Jdbc Hibernate Connection closed prematurly when launching a Job #5006
• OptimisticLockingFailureException caused by jobExecutionDao.updateJobExecution(jobExecution) #5022
• Missing GraalVM native image hints for StepContext.getJobParameters() #5041
• StepBuilder(JobRepository) fails due to timing mismatch between constructor validation and BeanNameAware #5027
• RecursiveCollectionLineAggregator.aggregate() fails on empty collection input #5023
• Incorrect retrieval of last step execution with MongoDB #4896
• Fix potential NPE in JdbcJobExecutionDao #5044

📖 Documentation updates

• FaultTolerantStepBuilder#skipLimit Javadoc is misleading with custom skipPolicy #4963
• Fix grammar error in testing documentation #4979
• Improve javadoc of JobInstanceDao#getJobNames method #5043

🆙 Dependency Upgrades

• Spring Framework: 7.0.0-RC1
• Spring Integration: 7.0.0-RC1
• Spring AMQP: 4.0.0-RC1
• Spring Kafka: 4.0.0-RC1
• Spring Data: 4.0.0-RC1
• Spring Ldap: 4.0.0-RC1
• Micrometer: 1.16.0-RC1

❤️ Contributors

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

---

Full change log: v6.0.0-M4...v6.0.0-RC1

v5.2.4

🐞 Bug fixes

• Regression: Jdbc Hibernate connection closed prematurely when launching a Job #5006
• Incorrect retrieval of last step execution with MongoDB #4896
• RecursiveCollectionLineAggregator.aggregate() fails on empty collection input #5023
• Missing GraalVM native image hints for Job/StepContext.getJobParameters() #5041

🚀 Enhancements

• Improve type conversion in MessageChannelPartitionHandler#receiveReplies #4776
• Improve performance of DefaultFieldSet#indexOf() method #4930
• Missing comma in StepExecution#getSummary #5025

📔 Documentation

• FaultTolerantStepBuilder#skipLimit Javadoc is misleading with custom skipPolicy #4963
• Fix grammar error in testing documentation #4979
• Improve javadoc of JobInstanceDao#getJobNames method #5043

🆙 Dependency Upgrades

• Spring Framework: 6.2.12
• Micrometer: 1.14.12
• Spring Integration: 6.4.8
• Spring AMQP: 3.2.8
• Spring Data: 3.4.11
• Spring Ldap: 3.2.15

❤️ Contributors

Thank you to all the contributors who contributed to this release!

---

Full change log: v5.2.3...v5.2.4

v6.0.0-M4

⭐ New features

• Add ability to configure Mongo sequence incrementers #5018
• Remove usage of Micrometer's global static meter registry #4968
• Migrate to JSpecify annotations for nullability constraints #4673

🚀 Enhancements

• Segregate StepLocator methods in a sub interface #5015
• Move infrastructure APIs under a specific package #5014
• Revisit exception declaration in public APIs #5013
• Move built-in job parameter incrementers to the org.springframework.batch.core.job.parameters package #5011
• Broken encapsulation of job parameter attributes #5010
• Incorrect nullability definition in public APIs input #4989
• Update retrieval methods with clear nullability semantics #4988
• Incorrect default constructor in AbstractStep #4984
• Documentation for disabling spring batch metrics is incomplete #4800
• Make domain model entities immutable #1870

🐞 Bug fixes

• Error in the metrics registration with a meter registry customization #4759
• Activation of Actuator & Prometheus rise a WARN in the log due to bad configuration #4753

🔨 Tasks

• Deprecate JobRepository#getStepExecution(long jobExecutionId, long stepExecutionId) #5007
• Deprecate the batch XML namespace #4843
• Deprecate JUnit 4 support #4816
• Update Micrometer's Prometheus support to version 1.x #4689

❤️ Contributors

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

---

Full change log: v6.0.0-M3...v6.0.0-M4

v6.0.0-M3

⭐ New features

• Add support for observability with the Java Flight Recorder #4972
• Add ability to externally stop any kind of step #4965
• Revisit the concurrency model #4955
• Make Job interface a functional interface #4966
• Make Step interface a functional interface #4976
• Add StepExecution parameter to StoppableTasklet.stop() #4703

🚀 Enhancements

• Make JobRegistry optional in the default batch configuration #4971
• Make transaction manager optional in JobOperatorFactoryBean #4970
• Make transaction manager optional in Tasklet and Chunk-Oriented steps #4974

🐞 Bug fixes

• Incorrect step execution id generation in ResourcelessJobRepository #4975
• Conflicting info in @AfterChunk/@BeforeChunk annotation javadoc to current implementation #4961
• RecordFieldSetMapper fails with Record without components #4900

🆙 Dependency Upgrades

• Spring Framework: 7.0.0-M9
• Spring Integration: 7.0.0-M3
• Spring AMQP: 4.0.0-M5
• Spring Kafka: 4.0.0-M5
• Spring Data: 4.0.0-M6
• Spring Ldap: 4.0.0-M3
• Micrometer: 1.16.0-M3

❤️ Contributors

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

---

Full change log: v6.0.0-M2...v6.0.0-M3

v5.2.3

🐞 Bug fixes

• Incorrect step execution id generation in ResourcelessJobRepository #4975
• RecordFieldSetMapper fails with Record without components #4900

🚀 Enhancements

• Allow keys other than _id for primary key in MongoItemWriter #4812
• Add Redis integration tests #4892
• Remove unnecessary reflection in RemoteChunkHandlerFactoryBean #4839
• Mark argument to ExitStatus#equals as nullable #4823
• Use typesafe variant of ctx::getBean instead #4803
• Use jdbcTemplate.queryForStream().findFirst() where appropriate #4802
• Reuse existing SQL where feasible #4801
• Improve performance of JdbcStepExecutionDao::getStepExecution #4799
• Add optimistic locking for meta-data deletion #4793
• Improve update sql for optimistic locking #4792
• Polish SynchronizationManagerSupport to use Map::computeIfAbsent #4786
• Refactor ExitStatus#isRunning for type-safety #4783
• FlatFileItemReaderBuilder : raise check exception on build #4757

📔 Documentation

• Fix javadoc in JdbcCursorItemReaderBuilder #4838
• Polish code block style and fix typo in whatsnew.adoc #4901
• Correct comment in RemoteChunkingJobFunctionalTests #4822

🆙 Dependency Upgrades

• Spring Framework: 6.2.11
• Spring Retry: 2.0.12
• Micrometer: 1.14.11
• Spring Integration: 6.4.7
• Spring AMQP: 3.2.7
• Spring Kafka: 3.3.10
• Spring Data: 3.4.10
• Spring Ldap: 3.2.14

❤️ Contributors

Thank you to all the contributors who contributed to this release!

---

Full change log: v5.2.2...v5.2.3

v6.0.0-M2

⭐ New features

• Add API to recover failed job executions #4876

🚀 Enhancements

• Revisit the chunk-oriented processing model implementation #3950
• Allow a StepInterruptionPolicy to be injected through the step builder #1641

🐞 Bug fixes

• Build failure with GraalVM 24 #4937

🆙 Dependency Upgrades

• Spring Framework: 7.0.0-M8
• Spring Integration: 7.0.0-M2
• Spring AMQP: 4.0.0-M4
• Spring Kafka: 4.0.0-M4
• Spring Data: 4.0.0-M5
• Spring Ldap: 4.0.0-M2
• Micrometer: 1.16.0-M2

❤️ Contributors

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

@thelightway24

---

Full change log: v6.0.0-M1...v6.0.0-M2

v6.0.0-M1

This is the first milestone of Spring Batch 6.0, which is a major release that comes with several new features, enhancements, and bug fixes. Moreover, this release introduces a number of API breaking changes and deprecations. Please refer to the migration guide for the full list of changes.

⭐ New features

• Introduce a modern command line batch operator #4899
• Add ability to use bean names for jobs and steps #4858
• Make MapJobRegistry smart enough to auto register jobs defined in the application context #4855
• Make MessageChannelPartitionHandler usable with any job repository implementations #4917
• Add optimistic locking for meta-data deletion #4793

🚀 Enhancements

• Improve experience when configuring an alternative JobRepository #4718
• Improve performance of JdbcStepExecutionDao::getStepExecution #4799
• Improve update sql for optimistic locking #4792
• Improve JobOperator API by using domain types instead of primitive types #4845
• Improve JobOperator by reducing its scope to job operations only #4833
• Core API simplification #4847
• Move core APIs in dedicated packages #4877
• Move listener APIs under core.listener package #4867
• Move core.explore package under core.repository #4827
• Move core partitioning APIs under org.springframework.batch.core.partition #4849
• Move DAOs implementations to separate packages #4848
• Remove unnecessary generic from JobKeyGenerator interface #4886
• Remove usage of JobFactory in `JobRegistry`` #4854
• Remove dependency to JobExplorer in SimpleJobOperator #4817
• Remove JobExplorer bean registration from the default batch configuration #4825
• Remove unnecessary reflection in RemoteChunkHandlerFactoryBean #4839
• Rename SimpleJobOperator to TaskExecutorJobOperator #4834
• Rename JobRepositoryFactoryBean to JdbcJobRepositoryFactoryBean #4829
• FlatFileItemReaderBuilder : raise check exception on build #4757
• Make JobOperator extend JobLauncher #4832
• Make JobRepository extend JobExplorer #4824
• Redundant methods in JobExplorer/JobInstanceDao APIs #4821
• Introduce ErrorProne, fix compiler warnings #4807
• Add Redis integration tests #4892
• Fail test if no exception is thrown in testErrorMessageWhenNoLineTokenizerWasProvided #4883
• Refactor AOT proxy hints for better type safety #4881
• Refactor ExitStatus#isRunning for type-safety #4783
• Mark argument to ExitStatus#equals as nullable #4823
• Use typesafe variant of ctx::getBean instead #4803
• Use jdbcTemplate.queryForStream().findFirst() where appropriate #4802
• Reuse existing SQL where feasible #4801

🐞 Bug fixes

• Incorrect warning when starting a job with an empty parameters set #4914
• Incorrect handling of job parameters when using a JobParametersIncrementer #4910
• Write Skip Count Not Updated in Chunk Processing #4514

📔 Documentation

• Polish code block style and fix typo in whatsnew.adoc #4901
• Fix javadoc in JdbcCursorItemReaderBuilder #4838
• Correct comment in RemoteChunkingJobFunctionalTests #4822

🔨 Tasks

• Replace usage of JobExplorer with JobRepository in RemoteStepExecutionAggregator #4928
• Replace usage of JobExplorer with JobRepository in SystemCommandTasklet #4927
• Replace usage of JobLauncher with JobOperator in JobLaunchingGateway and JobLaunchingMessageHandler #4924
• Replace usage of JobLauncher with JobOperator in JobStep #4923
• Replace usage of JobExplorer with JobRepository in StepExecutionRequestHandler #4918
• Rename JobLauncherTestUtils to JobOperatorTestUtils #4920
• Rename JobExplorerFactoryBean to JdbcJobExplorerFactoryBean #4846
• Deprecate StepRunner #4921
• Deprecate modular job configuration through EnableBatchProcessing #4866
• Remove usage of JobExplorer in BatchIntegrationConfiguration #4919
• Remove deprecated APIs scheduled for removal in v6 #4819
• Update GraalVM runtime hints #4844

🆙 Dependency Upgrades

• Spring Framework: 7.0.0-M7
• Spring Integration: 7.0.0-M1
• Spring AMQP: 4.0.0-M3
• Spring Kafka: 4.0.0-M3
• Spring Data: 4.0.0-M4
• Spring Ldap: 4.0.0-M1
• Spring Retry: 2.0.12
• Micrometer: 1.16.0-M1

❤️ Contributors

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

@darth-raijin, @itis821, @jbotuck, @martinfrancois, @noojung, @patrickwinti, @quaff, @scordio, @sieunie, @sjiwon, and @therepanic

---

Full change log: v5.2.2...v6.0.0-M1

v5.2.2

🐞 Bug fixes

• SynchronizeStatus in MongoJobExecutionDao is not upgrading the status of the JobExecution #4760
• @SpringBatchTest with JUnit @Nested triggers new test context creation #4738
• ExecutionContext dirty flag does not remain true when null is put for a non-existent key #4692
• ExecutionContext dirty flag is reset by a new put #4685
• MultiResourceItemWriter creates files with varying line count #1722
• Fix index creation statements in MongoDB DDL script #4758
• Attempt to close all delegate readers even when some fail #4764
• Attempt to close all delegate writers even when some fail #4750

🚀 Enhancements

• Add AOT runtime hints for infrastructure artifacts #4785
• Add AOT runtime hints for core listeners #4769
• Use Files.delete() for better error reporting #4775
• Fix variable usage in ScriptItemProcessorTests and include script engine test dependencies #4678
• Add @FunctionalInterface to ChunkProcessor #4773

📔 Documentation

• Update usage of deprecated StepExecutionListenerSupport in documention #4784
• Fix typo in Javadocs of FlatFileItemWriterBuilder#name(String) #4781
• Fix incorrect Javadocs in remote partitioning setup builders #4778
• Fix wrong statement in Javadoc of SimplePartitioner #4772
• Fix typo in intercepting-execution.adoc #4766
• Remove outdated AssertFile usage in section "Validating Output Files" of the reference documentation #4754

🆙 Dependency Upgrades

• Spring Framework: 6.2.4
• Spring Retry: 2.0.11
• Micrometer: 1.14.5
• Spring Integration: 6.4.3
• Spring AMQP: 3.2.4
• Spring Kafka: 3.3.4
• Spring Data: 3.4.4
• Spring Ldap: 3.2.11

❤️ Contributors

Thank you to all the contributors who contributed to this release:

@charlie881007, @GGHDMS, @neoludo, @elimelec, @hpoettker, @pongdangx2, @quaff, @scordio, @yeonnex, and @yoseplee

---

Full change log: v5.2.1...v5.2.2

v5.1.3

Heads-up: ❗This is the last OSS release of the 5.1.x line ❗Please check the support page.

⭐ New features

• Add DatabaseType POSTGRES for the product name EnterpriseDB #4627

🚀 Enhancements

• Bad performance of GET_LAST_STEP_EXECUTION query on DB2 with large STEP_EXECUTION table #4657
• Missing @FunctionalInterface in JobKeyGenerator #4613

🐞 Bug fixes

• Different behavior when interrupting a job, depending on the parallel flow order #3939
• MongoPagingItemReader never reset page number #1086
• Job restart after stop fails #1287
• Wrong column types in JdbcStepExecutionDao #4648

📔 Documentation

• Grammatical error in restart.adoc #4600
• Typo in architecture doc #4607
• Typo in the documentation chapter Spring Batch Integration #4649
• Missing documentation about MultiResourceItemWriter not creating empty files when no data goes through delegates #4645
• Missing note about not scoping Step beans with Job scope #3900
• Unclear documentation about wildcard usage to select input files #4707
• Regression in Javadoc deployment path with 5.1.2 #4604

🆙 Dependency Upgrades

• Spring Framework: 6.1.16
• Spring Retry: 2.0.11
• Micrometer: 1.12.12
• Spring Integration: 6.2.11
• Spring AMQP: 3.1.8
• Spring Kafka: 3.1.10
• Spring Data: 3.2.12
• Spring Ldap: 3.2.9

❤️ Contributors

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

v5.2.1

🐞 Bug fixes

• JobExecution#getJobExecution(@Nullable Long executionId) returns null when using MongoDB as JobExplorer #4722
• Different behavior when interrupting a job, depending on the parallel flow order #3939
• MongoPagingItemReader never reset page number #1086
• DerbyPagingQueryProvider remaining pages query is not correct #1253
• Job restart after stop fails #1287

🚀 Enhancements

• Update DerbyPagingQueryProvider for Derby 10.7 and above #1673

📔 Documentation

• Missing note about not scoping Step beans with Job scope #3900
• Repeating 'the the' exists #4615
• Unclear documentation about wildcard usage to select input files #4707
• Incorrect class name and grammatical error in docs whats-new #4720
• Fix link section #4696
• Error in Migration guide #4695
• Incorrect link and closing tag for listeners in documentation #4610

🆙 Dependency Upgrades

• Spring Framework: 6.2.1
• Spring Retry: 2.0.11
• Micrometer: 1.14.2
• Spring Integration: 6.4.1
• Spring AMQP: 3.2.1
• Spring Kafka: 3.3.1
• Spring Data: 3.4.1
• Spring Ldap: 3.2.9

🔨 Tasks

• Deprecate SqlWindowingPagingQueryProvider #4733

❤️ Contributors

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

@Seungpang, @Solodye, @ngocnhan-tran1996, @uli-f, and @xeounxzxu