4.0.x

Issues

• Unexpected behavior with DevTools when 'main' throws an exception

  type: bug
  spring-projects/spring-boot#26894 · Filter by author Artur- opened on Jun 14, 2021 · 4.0.x
  5

  

• Dev tools causes misconfigured command-line application to exit with 0

  status: pending-design-worktype: bug
  spring-projects/spring-boot#28541 · Filter by author msmerc opened on Nov 5, 2021 · 4.0.x
  15

• Image building does not validate that image registry host matches publish registry URL

  status: pending-design-worktype: bug
  spring-projects/spring-boot#29281 · Filter by author liyuan-rey opened on Jan 6, 2022 · 4.0.x
  8

• Spring Boot 3 Native Fails to Start with Kotlin @JvmStatic Main Method

  theme: aottype: bug
  spring-projects/spring-boot#32918 · Filter by author akefirad opened on Oct 29, 2022 · 4.0.x
  38

• Slf4JBridgeHandler.uninstall called too early in context close, swallowing JUL log output.

  type: bug
  spring-projects/spring-boot#33697 · Filter by author sijskes opened on Jan 5, 2023 · 4.0.x
  8

• Docker Compose support does not work in AOT-processed tests

  theme: aottype: bug
  spring-projects/spring-boot#36273 · Filter by author wilkinsona opened on Jul 7, 2023 · 4.0.x
  7

• Align versions used in spring-boot-gradle-plugin

  status: pending-design-worktype: task
  spring-projects/spring-boot#37904 · Filter by author philwebb opened on Oct 16, 2023 · 4.0.x
  2

• Add Testcontainers at development time integration test

  status: pending-design-worktype: task
  spring-projects/spring-boot#38045 · Filter by author philwebb opened on Oct 25, 2023 · 4.0.x
  5

• OpenTelemetryMetricsContainerConnectionDetailsFactoryIntegrationTests is flaky when running locally

  type: task
  spring-projects/spring-boot#41106 · Filter by author philwebb opened on Jun 14, 2024 · 4.0.x
  3

• DynamicPropertyRegistry Values Not Set After Dev Tools Reload for RestartScope Containers

  type: bug
  spring-projects/spring-boot#41552 · Filter by author shawnweeks opened on Jul 17, 2024 · 4.0.x
  14

• Using @ServiceConnection on a Container @Bean method does not work with AOT-processed tests

  theme: aottype: bug
  spring-projects/spring-boot#42851 · Filter by author wyhasany opened on Oct 23, 2024 · 4.0.x
  9

• @ImportTestcontainers doesn't work with AOT

  theme: aottype: bug
  spring-projects/spring-boot#42875 · Filter by author wilkinsona opened on Oct 24, 2024 · 4.0.x
  1

• Buildpacks with Podman Desktop on MacOS fail with "failed to export: get run image top layer SHA: image has no layers"

  type: bug
  spring-projects/spring-boot#43354 · Filter by author ivangfr opened on Dec 2, 2024 · 4.0.x
  21

• "Deploying to the Cloud - Kubernetes Container Lifecycle" documentation needs clarification

  status: team-onlytype: documentation
  spring-projects/spring-boot#47198 · Filter by author dan-lind opened on Sep 13, 2025 · 4.0.x
  4

• Investigate why the system tests aren't run with Java 25

  status: team-onlytype: task
  spring-projects/spring-boot#47640 · Filter by author mhalbritter opened on Oct 15, 2025 · 4.0.x
  7

• Update docs build to tolerate tags that have been pushed but not yet built and published

  status: team-onlytype: task
  spring-projects/spring-boot#48939 · Filter by author wilkinsona opened on Jan 22, 2026 · 4.0.x
  2

• Paketo integration doesn't work with Docker's new overlayfs storage driver

  type: bug
  spring-projects/spring-boot#49251 · Filter by author mhalbritter opened on Feb 18, 2026 · 4.0.x
  4

• Reconsider our approach to OSS vs. commercial builds

  for: team-attentiontype: task
  spring-projects/spring-boot#49354 · Filter by author snicoll opened on Mar 1, 2026 · 4.0.x
  1

• Configuration properties of type Class should not require a dedicated reflection hint to be bound on native

  for: team-attentiontype: bug
  spring-projects/spring-boot#50221 · Filter by author magnus-larsson opened on Apr 25, 2026 · 4.0.x
  7

• Harden processing of ClassLoaderFiles

  status: team-onlytype: task
  spring-projects/spring-boot#50363 · Filter by author wilkinsona opened on May 7, 2026 · 4.0.x
  5

• long may be truncated to an int when loading Zip64-format jars

  status: team-onlytype: bug
  spring-projects/spring-boot#50364 · Filter by author wilkinsona opened on May 7, 2026 · 4.0.x
  2

• Harden unpacking of nested jars

  status: team-onlytype: task
  spring-projects/spring-boot#50365 · Filter by author wilkinsona opened on May 7, 2026 · 4.0.x

• spring-boot-loader does not consistently handle shorts correctly

  status: team-onlytype: bug
  spring-projects/spring-boot#50366 · Filter by author wilkinsona opened on May 7, 2026 · 4.0.x
  2

• Consider symlinks when normalizing output locations while processing buildpack layers

  status: team-onlytype: task
  spring-projects/spring-boot#50702 · Filter by author wilkinsona opened on Jun 8, 2026 · 4.0.x

• Homebrew formula clashes with formula produce by Boot 4.1

  status: team-onlytype: bug
  spring-projects/spring-boot#50907 · Filter by author muescha opened on Jul 2, 2026 · 4.0.x
  3