Spring Boot 2.0.0 RC2 Release Notes

For changes in earlier milestones, please refer to:

Upgrading from Spring Boot 2.0.0 RC1

See instructions in the 2.0.0.RC1 release notes for upgrading from v2.0.0.RC1 and earlier.

Configuration key harmonization

To reduce the confusion and provide an optimal structure, the management.endpoints.web.expose property has been relocated to management.endpoints.web.exposure.include, together with management.endpoints.web.exposure.exclude (formerly defined as management.endpoints.web.exclude). JMX-related settings have been migrated to management.endpoints.jmx.exposure.include and management.endpoints.jmx.exposure.exclude respectively.

Micrometer

To align with decisions in Micrometer 1.0.0, metrics prefix for RabbitMQ, Cache and JDBC are no longer configurable. The prefixes are now rabbitmq, cache, and jdbc respectively.

Also, the individual components are now dedicated auto-configurations rather than a single MetricsAutoConfiguration. This improves the conditions report and gives you the ability to exclude something in a more fine-grained manner if necessary.

Health endpoint

The health endpoint has been revisited to allow more flexibility and align with the features in Spring Boot 1.x. The show-details property is now an enum that can be never (default), when-authorized and always.

Check the updated documentation for more details.

Webjars Locator

The dependency management for webjars-locator has changed to webjars-locator-core.

Repackager libraries order

The Repackager has been reworked so that the order of libraries is predictable, regardless of whether a library needs to be unpacked or not.

ApplicationHome, ApplicationPid and ApplicationTemp have moved to org.springframework.boot.system.

ApplicationPidFileWriter has moved to org.springframework.boot.context

New and Noteworthy

Tip	Check the configuration changelog for a complete overview of the changes in configuration.

Micrometer

Spring Boot RC 2 supports the GA release of Micrometer. It adds the following features:

Property-based filtering of meters (see the updated documentation)
auto-create-db flag for Influx
publish-unchanged-meters for StatsD
Support for SignalFx, New Relic and Wavefront
ClassLoader and file descriptor metrics
Tomcat metrics
Hikari-specific metrics are exposed with a hikaricp prefix. Each metric is tagged by the name of the pool (can be controlled with spring.datasource.name)
More comprehensive documentation