Spring Boot 3.4.0 M1 Configuration Changelog

Configuration property changes between 3.3.2 and 3.4.0-M1

Deprecated in 3.4.0-M1

Key	Replacement	Reason
spring.datasource.oracleucp.connection-wait-timeout
spring.gson.lenient	spring.gson.strictness
spring.kafka.retry.topic.delay	spring.kafka.retry.topic.backoff.delay
spring.kafka.retry.topic.max-delay	spring.kafka.retry.topic.backoff.maxDelay
spring.kafka.retry.topic.multiplier	spring.kafka.retry.topic.backoff.multiplier
spring.kafka.retry.topic.random-back-off	spring.kafka.retry.topic.backoff.random

Added in 3.4.0-M1

Key	Default value	Description
logging.include-application-group	true	Whether to include the application group in the logs.
logging.structured.format.console		Structured logging format for output to the console.
logging.structured.format.file		Structured logging format for output to a file.
management.otlp.logging.compression	none	Method used to compress the payload.
management.otlp.logging.endpoint		URL to the OTel collector’s HTTP API.
management.otlp.logging.headers		Custom HTTP headers you want to pass to the collector, for example auth headers.
management.otlp.logging.timeout	10s	Call timeout for the OTel Collector to process an exported batch of data.
management.otlp.tracing.export.enabled		Whether auto-configuration of tracing is enabled to export OTLP traces.
management.wavefront.tracing.export.enabled		Whether auto-configuration of tracing is enabled to export Wavefront traces.
management.zipkin.tracing.export.enabled		Whether auto-configuration of tracing is enabled to export Zipkin traces.
spring.application.group		Application group.
spring.datasource.oracleucp.connection-wait-duration
spring.datasource.oracleucp.connection-wait-duration-in-millis
spring.datasource.oracleucp.hostname-resolver
spring.flyway.community-db-support-enabled	false	Whether to enable community database support.
spring.gson.strictness		Sets how strictly the RFC 8259 specification will be enforced when reading and writing JSON.
spring.kafka.retry.topic.backoff.delay	1s	Canonical backoff period.
spring.kafka.retry.topic.backoff.max-delay	0	Maximum wait between retries.
spring.kafka.retry.topic.backoff.multiplier	0	Multiplier to use for generating the next backoff delay.
spring.kafka.retry.topic.backoff.random	false	Whether to have the backoff delays.
spring.mail.ssl.bundle		SSL bundle name.
spring.mail.ssl.enabled	false	Whether to enable SSL support.

Removed in 3.4.0-M1

Key	Replacement	Reason
spring.influx.password		The new InfluxDb Java client provides Spring Boot integration.
spring.influx.url		The new InfluxDb Java client provides Spring Boot integration.
spring.influx.user		The new InfluxDb Java client provides Spring Boot integration.
spring.mvc.throw-exception-if-no-handler-found		DispatcherServlet property is deprecated for removal and should no longer need to be configured.