Overview

  • Spring is a framework for dependency-injection which is a pattern that allows to build very decoupled systems.
  • The Spring Framework is divided into modules.
  • Applications can choose which modules they need.
  • At the heart are the modules of the core container, including a configuration model and a dependency injection mechanism.
  • Official Website

Spring Release

  • Spring 1     : 2004
  • Spring 2     : 2006
  • Spring 3     : 2009
  • Spring 4     : 2013
  • Spring 4.3  : 2016
  • Spring 5     : 2017

Version Changes

  • The Spring Framework was first released in 2004; since then there have been significant major revisions.
  • Spring 2.0 provided XML namespaces and AspectJ support.
  • Spring 2.5 embraced annotation-driven configuration.
  • Spring 3.0 introduced a strong Java 5+ foundation across the framework codebase, and features such as the Java-based @Configuration model.
  • Version 4.0 was first to fully support Java 8 features.
  • You can still use Spring with older versions of Java, however, the minimum requirement has now been raised to Java SE 6.

Spring Framework 4.x Changes

Java 8
  • Spring Framework 4.0 provides support for several Java 8 features.
Java EE 6 and 7
  • Java EE version 6 or above is now considered the baseline for Spring Framework 4, with the JPA 2.0 and Servlet 3.0 specifications being of particular relevance.
  • Spring Framework 4.0 supports the Java EE 7 level of applicable specifications now: in particular, JMS 2.0, JTA 1.2, JPA 2.1, Bean Validation 1.1, and JSR-236 Concurrency Utilities.
Release Note of Spring 4.x 

Spring Framework 5.x Changes

Servlet API 4
  • One of the new features that Spring 5 brings – is the server push support that comes with Java EE 8 Servlet 4.0 API. 
Java EE 7
  • Servlet 3.1
  • JMS 2.0
  • JPA 2.1
  • JAX-RS 2.0
  • Bean Validation 1.1
  • Java 8 or Higher
    Java 8 is the minimum requirement to work on Spring Framework 5.0.
Spring webflux
  • Spring-webflux module that supports reactive HTTP and WebSocket clients.
Testing
  • Spring Framework 5.0 fully supports Junit 5 Jupiter to write tests and extensions in JUnit 5.
Library Support
  • Jackson 2.6+
  • EhCache 2.10+ / 3.0 GA
  • Hibernate 5.0+
  • JDBC 4.0+
  • XmlUnit 2.x+
  • OkHttp 3.x+
  • Netty 4.1+
Discontinued Support
  • beans.factory.access
  • jdbc.support.nativejdbc
  • mock.staticmock of the spring-aspects module.
  • web.view.tiles2M. Now Tiles 3 is the minimum requirement.
  • orm.hibernate3 and orm.hibernate4. Now, Hibernate 5 is the supported framework.
  • Spring Framework 5.0 has also discontinued support for the following libraries:
    • Portlet
    • Velocity
    • JasperReports
    • XMLBeans
    • JDO
    • Guava
Min Server Versions
  • Tomcat 8.5+
  • Jetty 9.4+
  • WildFly 10+
  • Netty 4.1+
  • Undertow 1.4+
Categories: JAVASpring

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