Spring v7.1.0-M1 released!

NewsBot · 20 August 2026 18:21

Spring v7.1.0-M1 has been released.

Attention Required

starting in Spring Framework 7.1, ForwardedHeaderFilter (Spring MVC) and ForwardedHeaderTransformer (WebFlux) each require a boolean argument whether to use the standard “Forwarded” header or the “X-Forwarded” alternative headers. A separate property enables use of “X-Forwarded-Prefix” if needed. The default constructor with the existing behaviour of checking both types of headers is still available but deprecated and marked for removal. The new constructor makes forwarded header processing more deterministic and aligned with what is expected from the proxy. Please, see the updated Security Considerations section, as well as related changes in Spring Boot Update properties for forwarded headers to adapt to Spring Framework changes · Issue #51030 · spring-projects/spring-boot · GitHub. #37072

Default context config is not detected when superclass or enclosing class is not annotated with @ContextConfiguration #31456

New Features

Add logging operators in DefaultExchangeFunction only when debug is enabled #37095

Consistently enforce non-null instance in AbstractFactoryBean #37091

Reinstate invalid resource location checks #37063

Preserve original bean names as aliases with FullyQualifiedConfigurationBeanNameGenerator #37038

Improve forwarded header parsing #36964

Avoid “NullAway.Init” suppression in favor of explicit field handling [#36961](Spring-P · GitHub…

Link: Release v7.1.0-M1 · spring-projects/spring-framework · GitHub