Spring Boot 4.1.0 M3 Configuration Changelog

Configuration property changes between 4.1.0-M2 and 4.1.0-M3

Default Changed in 4.1.0-M3

Key	Old Default	New Default
server.tomcat.max-part-count	10	50
spring.jackson.factory.constraints.read.max-string-length	20000000	100000000

Deprecated in 4.1.0-M3

Key	Replacement	Reason
spring.devtools.livereload.enabled		Deprecated with no replacement
spring.devtools.livereload.port		Deprecated with no replacement

Added in 4.1.0-M3

Key	Default value	Description
logging.log4j2.rollingpolicy.cron	0 0 0 * * ?	Cron expression used when the strategy is 'cron'.
logging.log4j2.rollingpolicy.file-name-pattern	${LOG_FILE}.%d{yyyy-MM-dd}.%i.gz	Pattern for rolled-over log file names.
logging.log4j2.rollingpolicy.max-file-size	10MB	Maximum log file size.
logging.log4j2.rollingpolicy.max-history	7	Maximum number of archive log files to keep.
logging.log4j2.rollingpolicy.strategy	size	Rolling policy strategy.
logging.log4j2.rollingpolicy.time-interval	1	Time based triggering interval when the strategy is 'time' or 'size-and-time'.
logging.log4j2.rollingpolicy.time-modulate	false	Whether to align the next rollover time to occur at the top of the interval when the strategy is time based.
management.opentelemetry.enabled	true	Whether OpenTelemetry should be enabled.
management.opentelemetry.logging.export.max-batch-size	512	Maximum batch size for each export.
management.opentelemetry.logging.export.max-queue-size	2048	Maximum number of logs that are kept in the queue before they will be dropped.
management.opentelemetry.logging.export.otlp.ssl.bundle		SSL bundle name.
management.opentelemetry.logging.export.schedule-delay	1s	The delay interval between two consecutive exports.
management.opentelemetry.logging.export.timeout	30s	Maximum time an export will be allowed to run before being cancelled.
management.opentelemetry.logging.limits.max-attribute-value-length		Maximum number of characters for string attribute values.
management.opentelemetry.logging.limits.max-attributes	128	Maximum number of attributes per log record.
management.opentelemetry.tracing.export.otlp.ssl.bundle		SSL bundle name.
management.opentelemetry.tracing.limits.max-attribute-value-length		Maximum number of characters for string attribute values.
management.opentelemetry.tracing.limits.max-attributes	128	Maximum number of attributes per span.
management.opentelemetry.tracing.limits.max-attributes-per-event	128	Maximum number of attributes per event.
management.opentelemetry.tracing.limits.max-attributes-per-link	128	Maximum number of attributes per link.
management.opentelemetry.tracing.limits.max-events	128	Maximum number of events per span.
management.opentelemetry.tracing.limits.max-links	128	Maximum number of links per span.
management.opentelemetry.tracing.sampler	parent-based-trace-id-ratio	Sampler to use.
management.otlp.metrics.export.ssl.bundle		SSL bundle name.
management.tracing.exemplars.include	sampled-traces	Traces to include as exemplars.
spring.amqp.client.completion-timeout	60s	Maximum time to wait for request operations to complete.
spring.amqp.client.default-to-address		Default destination address for send operations when none is specified.
spring.amqp.host	localhost	AMQP broker host.
spring.amqp.password		Password used to authenticate to the broker.
spring.amqp.port	5672	AMQP broker port.
spring.amqp.username		Login user to authenticate to the broker.
spring.grpc.client.channel		Map of channel configured by name.
spring.grpc.client.channelfactory.enabled	true	Whether to enable gRPC channel factory bean auto-configuration.
spring.grpc.client.enabled	true	Whether to enable gRPC client auto-configuration.
spring.grpc.client.inprocess.enabled	true	Whether to configure the in-process channel factory.
spring.grpc.client.observation.enabled	true	Whether to enable Observations on the client.
spring.grpc.server.address		Network address to which the gRPC server should bind.
spring.grpc.server.enabled	true	Whether to enable gRPC server auto-configuration.
spring.grpc.server.factory.enabled	true	Whether to enable gRPC server factory bean auto-configuration.
spring.grpc.server.health.enabled		Whether to auto-configure Health feature on the gRPC server.
spring.grpc.server.health.include-overall-health	true	Whether to include the overall server health.
spring.grpc.server.health.schedule.delay	5s	The initial delay before updating the health status the very first time.
spring.grpc.server.health.schedule.enabled	true	Whether to schedule updates to gRPC server health based on application health.
spring.grpc.server.health.schedule.period	5s	How often to update the health status.
spring.grpc.server.health.service		Service specific health reporting.
spring.grpc.server.health.services.validate-membership	true	Whether to validate health membership for services on startup.
spring.grpc.server.health.status.mapping		Mapping of health statuses to gRPC service status.
spring.grpc.server.health.status.order		List of health statuses in order of severity.
spring.grpc.server.inbound.message.max-size	4194304B	Maximum message size allowed to be received by the server (default 4MiB).
spring.grpc.server.inbound.metadata.max-size	8192B	Maximum metadata size allowed to be received by the server (default 8KiB).
spring.grpc.server.inprocess.name		The name of the in-process server or null to not start the in-process server.
spring.grpc.server.keepalive.connection.grace-period	30s	Maximum time for graceful connection termination (default infinite).
spring.grpc.server.keepalive.connection.max-age		Maximum time a connection may exist before being gracefully terminated (default infinite).
spring.grpc.server.keepalive.connection.max-idle-time		Maximum time a connection can remain idle before being gracefully terminated (default infinite).
spring.grpc.server.keepalive.permit.time	5m	Maximum keep-alive time clients are permitted to configure (default 5m).
spring.grpc.server.keepalive.permit.without-calls	false	Whether clients are permitted to send keep alive pings when there are no outstanding RPCs on the connection (default false).
spring.grpc.server.keepalive.time	2h	Duration without read activity before sending a keep alive ping (default 2h).
spring.grpc.server.keepalive.timeout	20s	Maximum time to wait for read activity after sending a keep alive ping.
spring.grpc.server.netty.domain-socket-path		Path of the domain socket that should be used.
spring.grpc.server.netty.transport		Transport mechanism used for Netty and Netty Shaded servers.
spring.grpc.server.observation.enabled	true	Whether to enable Observations on the server.
spring.grpc.server.port		Port on which the gRPC server should listen.
spring.grpc.server.reflection.enabled	true	Whether to enable Reflection on the gRPC server.
spring.grpc.server.servlet.enabled	false	Whether to use a servlet server in a servlet-based web application.
spring.grpc.server.servlet.validate-http2	true	Whether to validate that HTTP/2 is enabled.
spring.grpc.server.shutdown.grace-period	30s	Maximum time to wait for the server to gracefully shutdown.
spring.grpc.server.ssl.bundle		SSL bundle name.
spring.grpc.server.ssl.client-auth	none	Client authentication mode.
spring.grpc.server.ssl.enabled		Whether to enable SSL support.
spring.grpc.server.ssl.secure	true	Flag to indicate that client authentication is secure (i.e. certificates are checked).
spring.http.clients.cookie-handling		Handling for HTTP cookies.
spring.rabbitmq.stream.ssl.bundle		SSL bundle name.
spring.rabbitmq.stream.ssl.enabled		Whether to enable SSL support.
spring.security.oauth2.resourceserver.jwt.authorities-claim-expressions		List of expressions to use to extract authorities from a JWT.

Removed in 4.1.0-M3

None.