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Replace HandlerMappingIntrospector with PreFlightRequestHandler bean in MVC config

in: webIssues in web modules (web, webmvc, webflux, websocket)Issues in web modules (web, webmvc, webflux, websocket)

type: enhancementA general enhancementA general enhancement

Status: Open.

#36481 In spring-projects/spring-framework;

· rstoyanchev opened on Mar 16, 2026

Add a configurable limit for structural nesting depth in SpEL expressions

in: coreIssues in core modules (aop, beans, core, context, expression)Issues in core modules (aop, beans, core, context, expression)

type: enhancementA general enhancementA general enhancement

Status: Open.

#36723 In spring-projects/spring-framework;

· wo1enca1ca1 opened on Apr 29, 2026

Doc: LocaleContextHolder with inheritable only propagates to newly created threads

in: coreIssues in core modules (aop, beans, core, context, expression)Issues in core modules (aop, beans, core, context, expression)

type: documentationA documentation taskA documentation task

Status: Open.

#36687 In spring-projects/spring-framework;

· heyarny opened on Apr 22, 2026

Deprecate disallowedFields property of DataBinder

in: webIssues in web modules (web, webmvc, webflux, websocket)Issues in web modules (web, webmvc, webflux, websocket)

type: enhancementA general enhancementA general enhancement

Status: Open.

#36802 In spring-projects/spring-framework;

· rstoyanchev opened on May 13, 2026

Add DataSize converters to DefaultConversionService

in: coreIssues in core modules (aop, beans, core, context, expression)Issues in core modules (aop, beans, core, context, expression)

type: enhancementA general enhancementA general enhancement

Status: Open (in progress).

spring-projects/spring-frameworknumber 36830

#36830 In spring-projects/spring-framework;

· yeomin4242 opened on May 23, 2026

Close contexts when clearing test context cache

in: testIssues in the test moduleIssues in the test module

type: enhancementA general enhancementA general enhancement

Status: Open (in progress).

spring-projects/spring-frameworknumber 36825

#36825 In spring-projects/spring-framework;

· Will-thom opened on May 21, 2026

Add dedicated exception for HttpStatus.PRECONDITION_FAILED

in: webIssues in web modules (web, webmvc, webflux, websocket)Issues in web modules (web, webmvc, webflux, websocket)

type: enhancementA general enhancementA general enhancement

Status: Open (in progress).

spring-projects/spring-frameworknumber 36807

#36807 In spring-projects/spring-framework;

· dominik-kovacs opened on May 14, 2026

Restore thread interrupt flag in DefaultMvcResult when catching InterruptedException

in: testIssues in the test moduleIssues in the test module

in: webIssues in web modules (web, webmvc, webflux, websocket)Issues in web modules (web, webmvc, webflux, websocket)

type: bugA general bugA general bug

Status: Open (in progress).

spring-projects/spring-frameworknumber 36876

#36876 In spring-projects/spring-framework;

· leestana01 opened on Jun 5, 2026

Replace isAssignableFrom() with isInstance() where feasible

status: waiting-for-feedbackWe need additional information before we can continueWe need additional information before we can continue

type: enhancementA general enhancementA general enhancement

Status: Open (in progress).

spring-projects/spring-frameworknumber 36899

#36899 In spring-projects/spring-framework;

· quaff opened on Jun 11, 2026