- Fixed missing/highlighted syntax and a broken link in the reference documentation.
- Updated core dependencies: Groovy, Jaybird, Jetty, AppEngine SDK, Spring Framework/Data, and Tomcat.
- Acknowledged contributors for this release.
v1.5.21.RELEASE
Official Spring Boot changelog summary with source attribution, release tags, and community reactions.
Track this Spring Boot release note alongside related changelog updates, risky changes, and weekly digest signals from the developer community.
Verify the original release note
Every summary should remain traceable to the original changelog or release source.
Follow this in context
Turn this Spring Boot release note into a weekly digest for the tools you actually use.
Create digestMore Spring Boot changelog updates
Fixed a wide range of bugs in Kafka security handling, Cloud Foundry integration, Spring Boot components, and resource cleanup.
Spring Boot Gradle plugin no longer auto‑configures gRPC when the Protobuf plugin is applied; opt‑in via an empty grpc block in the protobuf extension.