⭐ New Features

  • Add EIGHTEEN to JavaVersion enum #30132

🐞 Bug Fixes

  • ConfigurationPropertyName#equals is not symmetric when adapt has removed trailing characters from an element #30392
  • Thymeleaf auto-configuration in a reactive application can fail due to duplicate templateEngine beans #30385
  • server.tomcat.keep-alive-timeout is not applied to HTTP/2 #30321
  • Setting spring.mustache.enabled to false has no effect #30256
  • bootWar is configured eagerly #30213
  • Actuator @ReadOperation on Flux cancels request after first element emitted #30161
  • Unnecessary allocations in Prometheus scraping endpoint #30125
  • No metrics are bound for R2DBC ConnectionPools that have been wrapped #30100
  • Condition evaluation report entry for a @ConditionalOnSingleCandidate that does not match due to multiple primary beans isn’t as clear as it could be #30098
  • Generated password are logged without an “unsuitable for production use” note #30070
  • Dependency management for Netty tcNative is incomplete leading to possible version conflicts #30038
  • Files in META-INF are not found when deploying a Gradle-built executable war to a servlet container #30036
  • Dependency management for Apache Kafka is incomplete #30031
  • 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 #30022

📔 Documentation

  • Add Apache Kafka to the description of the Messaging section #30389
  • Default value of spring.thymeleaf.reactive.media-types is not documented #30387
  • Clarify type matching that is performed when using @MockBean and @SpyBean #30382
  • Fix links to Spring Security Reference Guide in Accessing the H2 Console in a Secured Application #30349
  • Document how to access the H2 Console in a secured web application #30346
  • Add Netty in “Enable HTTP Response Compression” #30344
  • Fix JsonSerializer example in reference guide #30330
  • WebSockets section missing in reference guide #30231
  • Include default Dev Tools properties in the reference documentation #30166
  • Document the WebSocket-related exclusions that are required to use Jetty 10 #30149
  • Fix typo #30120
  • Add documentation for spring.profiles.include #30114
  • Document when config data properties are invalid #30113
  • Document the scalar types supported by MapBinder #30111
  • Document how to rely on ServletContext with an embedded container setup #30109
  • Anchor tag for Spring HATEOAS does not redirect properly #30106
  • Clarify that build plugins or the CLI does not have an auto-compile feature #30093
  • Document how to structure configurations so that @Bean methods are included in slice tests #30091
  • Remove non-existent spring.data.cassandra.connection.connection-timeout property from the documentation #30080
  • Clarify actuator security documentation #30065
  • Use Gradle’s task configuration avoidance APIs in the main reference docs #30059
  • Use Gradle’s task configuration avoidance APIs in the Gradle Plugin’s reference docs #30057
  • Improve property placeholder documentation to mention environment variables and default values #30050
  • Polish web examples in reference doc #30048
  • Add links to Spring Boot for Apache Geode to the reference documentation #30018
  • Document plugging in custom sanitisation rules with a SanitizingFunction bean #29950

🔨 Dependency Upgrades

  • Upgrade to Couchbase Client 3.2.6 #30237
  • Upgrade to Dropwizard Metrics 4.2.9 #30238
  • Upgrade to Groovy 3.0.10 #30239
  • Upgrade to Hibernate 5.6.7.Final #30338
  • Upgrade to Hibernate Validator 6.2.3.Final #30241
  • Upgrade to Jackson Bom 2.13.2 #30242
  • Upgrade to Kafka 3.0.1 #30243
  • Upgrade to Lettuce 6.1.8.RELEASE #30339
  • Upgrade to Log4j2 2.17.2 #30244
  • Upgrade to Logback 1.2.11 #30245
  • Upgrade to Micrometer 1.8.4 #30178
  • Upgrade to Neo4j Java Driver 4.4.5 #30326
  • Upgrade to Netty 4.1.75.Final #30246
  • Upgrade to Netty tcNative 2.0.51.Final #30247
  • Upgrade to R2DBC Bom Arabba-SR13 #30340
  • Upgrade to Reactor 2020.0.17 #30176
  • Upgrade to Spring AMQP 2.4.3 #30180
  • Upgrade to Spring Data 2021.1.3 #30179
  • Upgrade to Spring Framework 5.3.17 #30177
  • Upgrade to Spring Integration 5.5.10 #30183
  • Upgrade to Spring Kafka 2.8.4 #30181
  • Upgrade to Spring Retry 1.3.2 #30248
  • Upgrade to Spring WS 3.1.3 #30182
  • Upgrade to Tomcat 9.0.60 #30249

❤️ Contributors

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

Reference https://github.com/spring-projects/spring-boot/releases/tag/v2.6.5