From Spring Boot 2.2 to Spring Boot 2.3

1. © Copyright 2020 Pivotal Software, Inc. All rights Reserved. From Spring Boot 2.2 to Spring Boot 2.3 Stéphane Nicoll - @snicoll
2. 2019 Edition Recap October 7-10 2019 Austin Convention Center
6. Spring Boot 2.2
7. Java 13 https://github.com/spring-projects/spring-framework/wiki/Spring-Framework-Versions#jdk-version-range
8. Dependency management Upgrades
9. New Features
10. Important Features
12. RSocket
13. RSocket
14. Health Indicator Group
15. Health Indicator Group management.endpoint.health.group.liveness.include=ping management.endpoint.health.group.readiness.include=db,redis GET /actuator/health/liveness GET /actuator/health/readiness
16. Immutable Configuration Properties
17. Immutable Configuration Properties @ConfigurationProperties("acme") @ConstructorBinding public class AcmeProperties { private final Duration timeout; private final DataSize bufferSize; private final Security security; public AcmeProperties(@DefaultValue("10s") Duration timeout, DataSize bufferSize, Security security) { this.timeout = timeout; this.bufferSize = bufferSize; this.security = security; } ... }
18. @ConfigurationProperties("acme") @ConstructorBinding data class AcmeProperties(val timeout: Duration = Duration.ofSeconds(10), val bufferSize: DataSize?, val security: Security) { ... } https://github.com/snicoll/demo-immutable-config-props Immutable Configuration Properties
19. JUnit 5
20. JUnit 5 // @ExtendWith(SpringExtension.class) @SpringBootTest class MyApplicationTests { @Test void resourceFileCreated(@TempDir Path tmpDir) { // ... } }
21. Performance
22. Performance • Startup time • Lazy initialization • Runtime performance
23. start.spring.io
27. Statistics
28. How many projects do we generate a year? 10K 100K 1M+
29. How many projects do we generate a year? 10K 100K 1M+ ✔ month
30. What are the top 3 countries?* India US China * Sep 2018 - Sep 2019 #15
31. What’s the client split?* Web IDE CLI * Sep 2018 - Sep 2019
32. What’s the client split?* Web IDE CLI * Sep 2018 - Sep 2019 (without China)
33. ⚡To Spring Boot 2.3⚡
34. Spring Framework 5.3
35. Spring Framework 5.3 • Preparing for JDK 17 LTS • Embracing GraalVM native images • Wrap-up 5.x themes (RSocket, Coroutines)
36. Spring Boot 2.3
37. Spring Boot 2.3 • Container Support with Cloud Native Buildpacks • Kubernetes Support • Dependency Upgrades (Spring Data) • 6 months release cadence (Apr 2020)
38. Support Policy
39. Support Policy October 2018 Spring Boot 2.1 GA August 2019 Spring Boot 1 EOL January 2020 Spring Framework 5.0/4.3 last release October 2019 Spring Boot 2.2 GA
40. April 2020 Spring Boot 2.3 GA October 2020 Spring Framework 5.3 / Spring Boot 2.4 GA December 2020 Spring Framework 5.1/4.3 EOL November 2020 Spring Boot 2.1 EOL Support Policy
41. © Copyright 2020 Pivotal Software, Inc. All rights Reserved. From Spring Boot 2.2 to Spring Boot 2.3 & 2.4 @snicoll Thanks!