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From Spring Boot 2.2 to Spring Boot 2.3
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Turn features on and off without deploys. Used by thousands of Ruby developers.
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Stéphane Nicoll
February 25, 2020
Programming
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From Spring Boot 2.2 to Spring Boot 2.3
Stéphane Nicoll
February 25, 2020
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Transcript
© Copyright 2020 Pivotal Software, Inc. All rights Reserved. From
Spring Boot 2.2 to Spring Boot 2.3 Stéphane Nicoll - @snicoll
2019 Edition Recap October 7-10 2019 Austin Convention Center
None
None
None
Spring Boot 2.2
Java 13 https://github.com/spring-projects/spring-framework/wiki/Spring-Framework-Versions#jdk-version-range
Dependency management Upgrades
New Features
Important Features
None
RSocket
RSocket
Health Indicator Group
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
Immutable Configuration Properties
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; } ... }
@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
JUnit 5
JUnit 5 // @ExtendWith(SpringExtension.class) @SpringBootTest class MyApplicationTests { @Test void
resourceFileCreated(@TempDir Path tmpDir) { // ... } }
Performance
Performance • Startup time • Lazy initialization • Runtime performance
start.spring.io
None
None
None
Statistics
How many projects do we generate a year? 10K 100K
1M+
How many projects do we generate a year? 10K 100K
1M+ ✔ month
What are the top 3 countries?* India US China *
Sep 2018 - Sep 2019 #15
What’s the client split?* Web IDE CLI * Sep 2018
- Sep 2019
What’s the client split?* Web IDE CLI * Sep 2018
- Sep 2019 (without China)
⚡To Spring Boot 2.3⚡
Spring Framework 5.3
Spring Framework 5.3 • Preparing for JDK 17 LTS •
Embracing GraalVM native images • Wrap-up 5.x themes (RSocket, Coroutines)
Spring Boot 2.3
Spring Boot 2.3 • Container Support with Cloud Native Buildpacks
• Kubernetes Support • Dependency Upgrades (Spring Data) • 6 months release cadence (Apr 2020)
Support Policy
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
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
© Copyright 2020 Pivotal Software, Inc. All rights Reserved. From
Spring Boot 2.2 to Spring Boot 2.3 & 2.4 @snicoll Thanks!