spring-projects/spring-boot v2.5.0-M3 on GitHub

⭐ New Features

Allow actuator endpoints to inject an enum indicating what to produce #25738
Support sending metrics to InfluxDB v2 #25721
Support Maven's reproducible build feature for war repackaging #25571
Support OpenMetrics text format in Prometheus Actuator endpoint #25564
Replace spring.datasource.initialization-order with a JPA-specific property #25559
Move R2DBC ConnectionFactoryBuilder and associated classes into spring-boot #25492
Deprecate support for checking Flyway locations #25488
Provide configuration properties for Flyway's Vault and Conjur support #25456
Allow PersistenceUnitPostProcessor to be configured on EntityManagerFactoryBuilder #25443
Sanitize the value of url and urls keys in the same way that the values of uri and uris keys are sanitized #25387
Support defining additional keys to sanitize for actuator endpoints #25384
Add InfluxDB customizer hook point #25319
Allow JMX endpoint ObjectNames to be customized by providing an EndpointObjectNameFactory bean #25317
Deprecate our Gradle plugin's integration with Gradle's maven plugin #25267
Register logging system's shutdown hook by default #25046
Allow configuring Cassandra configuration file #24065
Support building an image when using war packaging with Gradle #23825
Support building an image when using war packaging with Maven #23823
Leave jar and war tasks enabled by default and differentiate their output locations from those of bootJar and bootWar by configuring them with a classifier #23797
Add bindings option for image building #23518
Consider a generic way of indicating database setup #17619
Add prefix support for environment variables #3450

🪲 Bug Fixes

JooqExceptionTranslator passes null exception to jOOQ when SQLException cannot be translated #25718
When multiple schema or data script locations are configured and no resources can be found at a location, you can't tell which location is faulty #25693
When creating an initialization-specific DataSource, Flyway, Liquibase and our script-based auto-configuration all incorrectly assume that the primary DataSource will always have been derived from DataSourceProperties #25643
@ConfigurationProperties class's default values are not visible in the Errors instance passed to Validator.validate(Object target, Errors errors) #25615
Including spring-boot-devtools causes package-private getter on proxied class to return null #25585
Start up failure when creating an Aspect targeted at ServerHttpSecurity with devtools on the classpath. #25584
EmbeddedDatabaseConnection#h2 should not specify a host name #25570
RSocket's EmbeddedServerAutoConfiguration does not back off if spring-web is absent #25556
Bootstrapper's intitialize method should be named initialize #25517
Incorrect ConfigurationMetadataRepository when loaded from json files containing properties of the same group #25516
Layertools may extract entries outside of the destination path #25509
SpringApplication can replace existing default property source #25495
In Spring Boot 2.4 @EntityScan does not support property substitution #25491
Default fork value for spring-boot:stop is not consistent #25484
Application fails to start when using Actuator and Jersey configured as a Filter #25450
Image is not built when a buildpack is used #25378
The auto-configured WebFluxConfigurer is unordered so it may override customizations made in a user's WebFluxConfigurer #25302

📔 Documentation

Description of management.metrics.export.influx.db is wrong #25725
Document Java 16 support #25645
Document DataSource implementations supported by DataSourceBuilder #25644
Correct javadoc for ON_PARAM to accurately describe its behavior #25604
Fix typos in README #25601
Improve documentation of Mockito test execution listeners #25514
Highlight link to Actuator API docs in the reference docs #25511
Warn that multi-document property files cannot be loaded by using @PropertySource or @TestPropertySource #25502
Document how to import a Docker secret as a configtree #25500
Add note concerning application yml and properties file precedence #25464
Fix property name in gradle plugin documentation #25463
Fix grammatical error in documentation #25432
Fix wording error in build-info goal description #25386
Polish HTTP client metrics documentation wording #25372
Polish README #24981

🔨 Dependency Upgrades

Upgrade to AppEngine SDK 1.9.87 #25654
Upgrade to Byte Buddy 1.10.22 #25655
Upgrade to Commons Lang3 3.12.0 #25656
Upgrade to Couchbase Client 3.1.3 #25657
Upgrade to Dropwizard Metrics 4.1.18 #25658
Upgrade to Ehcache3 3.9.2 #25659
Upgrade to Flyway 7.7.0 #25660
Upgrade to Hazelcast 4.1.2 #25661
Upgrade to Hibernate 5.4.29.Final #25662
Upgrade to HikariCP 4.0.3 #25663
Upgrade to Infinispan 12.0.2.Final #25664
Upgrade to Jackson Bom 2.12.2 #25665
Upgrade to Jakarta Mail 1.6.6 #25666
Upgrade to Jedis 3.5.2 #25667
Upgrade to Jetty 9.4.38.v20210224 #25462
Upgrade to Jetty Reactive HTTPClient 1.1.6 #25668
Upgrade to jOOQ 3.14.8 #25669
Upgrade to Kotlin 1.4.31 #25670
Upgrade to Kotlin Coroutines 1.4.3 #25671
Upgrade to Lettuce 6.1.0.RC1 #25722
Upgrade to Log4j2 2.14.1 #25672
Upgrade to Micrometer 1.7.0-M1 #25707
Upgrade to Mockito 3.8.0 #25674
Upgrade to MongoDB 4.2.2 #25675
Upgrade to MSSQL JDBC 9.2.1.jre8 #25676
Upgrade to Neo4j Java Driver 4.2.3 #25677
Upgrade to Netty 4.1.60.Final #25678
Upgrade to Nimbus JOSE JWT 9.7 #25653
Upgrade to OAuth2 OIDC SDK 9.2.2 #25652
Upgrade to Postgresql 42.2.19 #25679
Upgrade to R2DBC Bom Arabba-SR9 #25680
Upgrade to Rabbit AMQP Client 5.11.0 #25681
Upgrade to Reactor 2020.0.5 #25540
Upgrade to SendGrid 4.7.2 #25682
Upgrade to SnakeYAML 1.28 #25683
Upgrade to Solr 8.8.1 #25684
Upgrade to Spring AMQP 2.3.6 #25648
Upgrade to Spring Batch 4.3.2 #25580
Upgrade to Spring Data 2021.0.0-M5 #25548
Upgrade to Spring Framework 5.3.5 #25542
Upgrade to Spring HATEOAS 1.3.0-M3 #25546
Upgrade to Spring Integration 5.5.0-M3 #25577
Upgrade to Spring Kafka 2.7.0-RC1 #25582
Upgrade to Spring Security 5.5.0-M3 #25581
Upgrade to Spring WS 3.1.0-M2 #25694
Upgrade to Sun Mail 1.6.6 #25686
Upgrade to Tomcat 9.0.44 #25687
Upgrade to Undertow 2.2.5.Final #25688

❤️ Contributors

We'd like to thank all the contributors who worked on this release!