Spring Boot 4.0.0 RC1 Configuration Changelog

Configuration property changes between 4.0.0-M3 and 4.0.0-RC1

Deprecated in 4.0.0-RC1

Key	Replacement	Reason
spring.http.client.connect-timeout	spring.http.clients.connect-timeout
spring.http.client.factory	spring.http.clients.imperative.factory
spring.http.client.read-timeout	spring.http.clients.read-timeout
spring.http.client.redirects	spring.http.clients.redirects
spring.http.client.ssl.bundle	spring.http.clients.ssl.bundle
spring.http.reactiveclient.connect-timeout	spring.http.clients.connect-timeout
spring.http.reactiveclient.connector	spring.http.clients.reactive.connector
spring.http.reactiveclient.read-timeout	spring.http.clients.read-timeout
spring.http.reactiveclient.redirects	spring.http.clients.redirects
spring.http.reactiveclient.ssl.bundle	spring.http.clients.ssl.bundle

Added in 4.0.0-RC1

Key	Default value	Description
spring.batch.jdbc.continue-on-error	true	Whether initialization should continue when an error occurs when applying a schema script.
spring.data.redis.masterreplica.nodes		Static list of "host:port" pairs to use, at least one entry is required.
spring.elasticsearch.restclient.sniffer.enabled	true	Whether the sniffer is enabled.
spring.graphql.rsocket.preferred-json-mapper	jackson	Preferred JSON mapper to use.
spring.http.clients.connect-timeout		Default connect timeout for a client HTTP request.
spring.http.clients.imperative.factory		Default factory used for a client HTTP request.
spring.http.clients.reactive.connector		Default connector used for a client HTTP request.
spring.http.clients.read-timeout		Default read timeout for a client HTTP request.
spring.http.clients.redirects		Handling for HTTP redirects.
spring.http.clients.ssl.bundle		SSL bundle to use.
spring.http.codecs.preferred-json-mapper	jackson	Preferred JSON mapper to use for HTTP encoding and decoding.
spring.http.serviceclient		HTTP Service Client definitions
spring.integration.jdbc.continue-on-error	true	Whether initialization should continue when an error occurs when applying a schema script.
spring.jackson.cbor.read		Jackson on/off token reader features that are specific to CBOR.
spring.jackson.cbor.write		Jackson on/off token writer features that are specific to CBOR.
spring.jackson.datatype.datetime		Jackson on/off features for DateTimes.
spring.jackson.find-and-add-modules	true	Whether to find and add modules to the auto-configured JsonMapper.Builder using MapperBuilder.findAndAddModules(ClassLoader).
spring.jackson.json.read		Jackson on/off token reader features that are specific to JSON.
spring.jackson.json.write		Jackson on/off token writer features that are specific to JSON.
spring.jackson.use-jackson2-defaults	false	Whether to configure Jackson 3 with the same defaults as Spring Boot previously used for Jackson 2.
spring.jackson2.constructor-detector (deprecated)	default	Strategy to use to auto-detect constructor, and in particular behavior with single-argument constructors.
spring.jackson2.datatype.enum (deprecated)		Jackson on/off features for enums.
spring.jackson2.datatype.json-node (deprecated)		Jackson on/off features for JsonNodes.
spring.jackson2.date-format (deprecated)		Date format string or a fully-qualified date format class name.
spring.jackson2.default-leniency (deprecated)		Global default setting (if any) for leniency.
spring.jackson2.default-property-inclusion (deprecated)		Controls the inclusion of properties during serialization.
spring.jackson2.deserialization (deprecated)		Jackson on/off features that affect the way Java objects are deserialized.
spring.jackson2.generator (deprecated)		Jackson on/off features for generators.
spring.jackson2.locale (deprecated)		Locale used for formatting.
spring.jackson2.mapper (deprecated)		Jackson general purpose on/off features.
spring.jackson2.parser (deprecated)		Jackson on/off features for parsers.
spring.jackson2.property-naming-strategy (deprecated)		One of the constants on Jackson’s PropertyNamingStrategies.
spring.jackson2.serialization (deprecated)		Jackson on/off features that affect the way Java objects are serialized.
spring.jackson2.time-zone (deprecated)		Time zone used when formatting dates.
spring.jackson2.visibility (deprecated)		Jackson visibility thresholds that can be used to limit which methods (and fields) are auto-detected.
spring.mongodb.representation.uuid	unspecified	Representation to use when converting a UUID to a BSON binary value.
spring.quartz.jdbc.continue-on-error	true	Whether initialization should continue when an error occurs when applying a schema script.
spring.rsocket.preferred-mapper	jackson	Preferred JSON and CBOR mapper to use.
spring.session.data.redis.cleanup-cron	0 * * * * *	Cron expression for expired session cleanup job.
spring.session.data.redis.configure-action	notify-keyspace-events	The configure action to apply when no user-defined ConfigureRedisAction or ConfigureReactiveRedisAction bean is present.
spring.session.data.redis.flush-mode	on-save	Sessions flush mode.
spring.session.data.redis.namespace	spring:session	Namespace for keys used to store sessions.
spring.session.data.redis.repository-type	default	Type of Redis session repository to configure.
spring.session.data.redis.save-mode	on-set-attribute	Sessions save mode.
spring.session.jdbc.continue-on-error	true	Whether initialization should continue when an error occurs when applying a schema script.
spring.test.jsontesters.enabled	true	Whether auto-configuration of JSON testers is enabled.
spring.test.metrics.export	false	Whether metrics export should be auto-configured in tests.
spring.test.mockmvc.webclient.enabled	true	Whether HTMLUnit’s WebClient should be auto-configured when it’s on the classpath.
spring.test.mockmvc.webdriver.enabled	true	Whether Selenium’s WebDriver should be auto-configured when it’s on the classpath.
spring.test.tracing.export	false	Whether tracing export should be auto-configured in tests.
spring.test.webclient.mockrestserviceserver.enabled	true	Whether a MockRestServiceServer should be auto-configured.
spring.test.webclient.register-rest-template	false	Whether a RestTemplate bean should be registered.
spring.test.webservice.client.mockserver.enabled	true	Whether a MockWebServiceServer should be auto-configured.
spring.test.webservice.client.register-web-service-template	false	Whether a WebServiceTemplate bean should be registered.

Removed in 4.0.0-RC1

Key	Replacement	Reason
management.observations.long-task-timer.enabled	management.metrics.observations.ignored-meters
spring.http.client.restclient.apiversion.default
spring.http.client.restclient.apiversion.insert.header
spring.http.client.restclient.apiversion.insert.media-type-parameter
spring.http.client.restclient.apiversion.insert.path-segment
spring.http.client.restclient.apiversion.insert.query-parameter
spring.http.client.restclient.base-url
spring.http.client.restclient.connect-timeout
spring.http.client.restclient.default-header
spring.http.client.restclient.factory
spring.http.client.restclient.read-timeout
spring.http.client.restclient.redirects
spring.http.client.restclient.ssl.bundle
spring.http.client.service.apiversion.default
spring.http.client.service.apiversion.insert.header
spring.http.client.service.apiversion.insert.media-type-parameter
spring.http.client.service.apiversion.insert.path-segment
spring.http.client.service.apiversion.insert.query-parameter
spring.http.client.service.base-url
spring.http.client.service.connect-timeout
spring.http.client.service.default-header
spring.http.client.service.factory
spring.http.client.service.group
spring.http.client.service.read-timeout
spring.http.client.service.redirects
spring.http.client.service.ssl.bundle
spring.http.reactiveclient.service.apiversion.default
spring.http.reactiveclient.service.apiversion.insert.header
spring.http.reactiveclient.service.apiversion.insert.media-type-parameter
spring.http.reactiveclient.service.apiversion.insert.path-segment
spring.http.reactiveclient.service.apiversion.insert.query-parameter
spring.http.reactiveclient.service.base-url
spring.http.reactiveclient.service.connect-timeout
spring.http.reactiveclient.service.connector
spring.http.reactiveclient.service.default-header
spring.http.reactiveclient.service.group
spring.http.reactiveclient.service.read-timeout
spring.http.reactiveclient.service.redirects
spring.http.reactiveclient.service.ssl.bundle
spring.http.reactiveclient.webclient.apiversion.default
spring.http.reactiveclient.webclient.apiversion.insert.header
spring.http.reactiveclient.webclient.apiversion.insert.media-type-parameter
spring.http.reactiveclient.webclient.apiversion.insert.path-segment
spring.http.reactiveclient.webclient.apiversion.insert.query-parameter
spring.http.reactiveclient.webclient.base-url
spring.http.reactiveclient.webclient.connect-timeout
spring.http.reactiveclient.webclient.connector
spring.http.reactiveclient.webclient.default-header
spring.http.reactiveclient.webclient.read-timeout
spring.http.reactiveclient.webclient.redirects
spring.http.reactiveclient.webclient.ssl.bundle
spring.jackson.datetime
spring.jackson.generator		Partially replaced by 'spring.jackson.json.read'.
spring.jackson.parser		Partially replaced by 'spring.jackson.json.write'.
spring.jackson.read	spring.jackson.json.read
spring.jackson.write	spring.jackson.json.write
spring.neo4j.pool.metrics-enabled		Use 'management.metrics.enable' to restrict certain metrics.
spring.session.hazelcast.flush-mode
spring.session.hazelcast.map-name
spring.session.hazelcast.save-mode
spring.session.mongodb.collection-name
spring.session.redis.cleanup-cron	spring.session.data.redis.cleanup-cron
spring.session.redis.configure-action	spring.session.data.redis.configure-action
spring.session.redis.flush-mode	spring.session.data.redis.flush-mode
spring.session.redis.namespace	spring.session.data.redis.namespace
spring.session.redis.repository-type	spring.session.data.redis.repository-type
spring.session.redis.save-mode	spring.session.data.redis.save-mode
spring.test.observability.auto-configure		Superseded by 'spring.test.metrics.export' and 'spring.test.tracing.export'.