Spring Boot - v2.5.11

:star: New Features

• Add EIGHTEEN to JavaVersion enum #29524

:lady_beetle: Bug Fixes

• Thymeleaf auto-configuration in a reactive application can fail due to duplicate templateEngine beans #30384
• ConfigurationPropertyName#equals is not symmetric when adapt has removed trailing characters from an element #30317
• server.tomcat.keep-alive-timeout is not applied to HTTP/2 #30267
• Setting spring.mustache.enabled to false has no effect #30250
• bootWar is configured eagerly #30211
• Actuator @ReadOperation on Flux cancels request after first element emitted #30095
• No metrics are bound for R2DBC ConnectionPools that have been wrapped #30090
• Unnecessary allocations in Prometheus scraping endpoint #30085
• Condition evaluation report entry for a @ConditionalOnSingleCandidate that does not match due to multiple primary beans isn't as clear as it could be #30073
• Generated password are logged without an "unsuitable for production use" note #30061
• Files in META-INF are not found when deploying a Gradle-built executable war to a servlet container #30026
• spring-boot-configuration-processor fails compilation due to @DefaultValue with a long value and generates invalid metadata for byte and short properties with out-of-range default values #30020
• Dependency management for Netty tcNative is incomplete leading to possible version conflicts #30010
• Dependency management for Apache Kafka is incomplete #29023

:notebook_with_decorative_cover: Documentation

• Fix JsonSerializer example in reference guide #30329
• Default value of spring.thymeleaf.reactive.media-types is not documented #30280
• Add Netty in "Enable HTTP Response Compression" #30234
• Fix typo #30118
• Remove non-existent spring.data.cassandra.connection.connection-timeout property from the documentation #30074
• Use Gradle's task configuration avoidance APIs in the Gradle Plugin's reference docs #30056
• Polish web examples in reference doc #30027
• Improve property placeholder documentation to mention environment variables and default values #30012
• Use Gradle's task configuration avoidance APIs in the main reference docs #30000
• Document how to access the H2 Console in a secured web application #29932
• Add links to Spring Boot for Apache Geode to the reference documentation #29697
• Include default Dev Tools properties in the reference documentation #29406
• Document the WebSocket-related exclusions that are required to use Jetty 10 #29275
• Clarify type matching that is performed when using @MockBean and @SpyBean #28656
• Add documentation for spring.profiles.include #28451
• Document the scalar types supported by MapBinder #27581
• Document when config data properties are invalid #25849
• Document how to rely on ServletContext with an embedded container setup #24561
• Clarify that build plugins or the CLI does not have an auto-compile feature #17851
• Document how to structure configurations so that @Bean methods are included in slice tests #16088

:hammer: Dependency Upgrades

• Upgrade to Couchbase Client 3.1.8 #30221
• Upgrade to Dropwizard Metrics 4.1.31 #30222
• Upgrade to Groovy 3.0.10 #30223
• Upgrade to Hibernate Validator 6.2.3.Final #30224
• Upgrade to Lettuce 6.1.8.RELEASE #30336
• Upgrade to Log4j2 2.17.2 #30225
• Upgrade to Logback 1.2.11 #30226
• Upgrade to Micrometer 1.7.10 #30171
• Upgrade to Netty 4.1.75.Final #30227
• Upgrade to Netty tcNative 2.0.51.Final #30228
• Upgrade to R2DBC Bom Arabba-SR13 #30337
• Upgrade to Reactor 2020.0.17 #30169
• Upgrade to Spring AMQP 2.3.15 #30173
• Upgrade to Spring Data 2021.0.10 #30172
• Upgrade to Spring Framework 5.3.17 #30170
• Upgrade to Spring Integration 5.5.10 #30175
• Upgrade to Spring Kafka 2.7.12 #30351
• Upgrade to Spring Retry 1.3.2 #30229
• Upgrade to Spring WS 3.1.3 #30174
• Upgrade to Tomcat 9.0.60 #30230

:heart: Contributors

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

• @izeye
• @stokpop
• @larsgrefer
• @wonwoo
• @abelsromero
• @fml2
• @hak7a3
• @octylFractal
• @hpoettker
• @62mkv
• @PPakSang
• @m-semnani