Spring Boot 2.4.0 M2 Configuration Changelog

Configuration properties change between 2.4.0-M1 and 2.4.0-M2

Table 1. Deprecated keys in 2.4.0-M2

Key	Replacement	Reason
management.health.probes.enabled	management.endpoint.health.probes.enabled
spring.data.neo4j.password	spring.neo4j.authentication.password
spring.data.neo4j.uri	spring.neo4j.uri
spring.data.neo4j.username	spring.neo4j.authentication.password
spring.profiles	spring.config.activate.on-profile

Table 2. New keys in 2.4.0-M2

Key	Default value	Description
management.endpoint.health.probes.enabled	false	Whether to enable liveness and readiness probes.
management.health.db.ignore-routing-data-sources	false	Whether to ignore AbstractRoutingDataSources when creating database health indicators.
management.health.livenessstate.enabled	false	Whether to enable liveness state health check.
management.health.readinessstate.enabled	false	Whether to enable readiness state health check.
management.metrics.export.defaults.enabled	true	Whether to enable default metrics exporters.
management.metrics.export.prometheus.pushgateway.password		Login password of the Prometheus Pushgateway.
management.metrics.export.prometheus.pushgateway.username		Login user of the Prometheus Pushgateway.
server.netty.h2c-max-content-length	0B	Maximum content length of an H2C upgrade request.
server.netty.initial-buffer-size	128B	Initial buffer size for HTTP request decoding.
server.netty.max-chunk-size	8KB	Maximum chunk size that can be decoded for an HTTP request.
server.netty.max-initial-line-length	4KB	Maximum length that can be decoded for an HTTP request’s initial line.
server.netty.validate-headers	true	Whether to validate headers when decoding requests.
spring.config.activate.on-cloud-platform		The cloud platform that required for the document to be included
spring.config.activate.on-profile		Profile expressions that should match for the document to be included
spring.config.import		Import additional config data.
spring.data.neo4j.database		Database name to use.
spring.data.neo4j.repositories.type	auto	Type of Neo4j repositories to enable.
spring.ldap.template.ignore-name-not-found-exception	false	Whether NameNotFoundException should be ignored in searches via the LdapTemplate.
spring.ldap.template.ignore-partial-result-exception	false	Whether PartialResultException should be ignored in searches via the LdapTemplate.
spring.ldap.template.ignore-size-limit-exceeded-exception	true	Whether SizeLimitExceededException should be ignored in searches via the LdapTemplate.
spring.mvc.pathmatch.matching-strategy		Choice of strategy for matching request paths against registered mappings.
spring.neo4j.authentication.kerberos-ticket		Kerberos ticket for connecting to the database.
spring.neo4j.authentication.password		Login password of the server.
spring.neo4j.authentication.realm		Realm to connect to.
spring.neo4j.authentication.username		Login user of the server.
spring.neo4j.connection-timeout	30s	Timeout for borrowing connections from the pool.
spring.neo4j.max-transaction-retry-time	30s	Maximum time transactions are allowed to retry.
spring.neo4j.pool.connection-acquisition-timeout	60s	Acquisition of new connections will be attempted for at most configured timeout.
spring.neo4j.pool.idle-time-before-connection-test		Pooled connections that have been idle in the pool for longer than this threshold will be tested before they are used again.
spring.neo4j.pool.log-leaked-sessions	false	Whether to log leaked sessions.
spring.neo4j.pool.max-connection-lifetime	1h	Pooled connections older than this threshold will be closed and removed from the pool.
spring.neo4j.pool.max-connection-pool-size	100	Maximum amount of connections in the connection pool towards a single database.
spring.neo4j.pool.metrics-enabled	false	Whether to enable metrics.
spring.neo4j.security.cert-file		Path to the file that holds the trusted certificates.
spring.neo4j.security.encrypted	false	Whether the driver should use encrypted traffic.
spring.neo4j.security.hostname-verification-enabled	true	Whether hostname verification is required.
spring.neo4j.security.trust-strategy		Trust strategy to use.
spring.neo4j.uri	bolt://localhost:7687	URI used by the driver.
spring.r2dbc.pool.max-acquire-time		Maximum time to acquire a connection from the pool.
spring.r2dbc.pool.max-create-connection-time		Maximum time to wait to create a new connection.
spring.r2dbc.pool.max-life-time		Maximum lifetime of a connection in the pool.
spring.r2dbc.pool.validation-depth	local	Validation depth.
spring.redis.client-type		Type of client to use.
spring.redis.lettuce.cluster.refresh.dynamic-refresh-sources	true	Whether to discover and query all cluster nodes for obtaining the cluster topology.

Table 3. Removed keys in 2.4.0-M2

Key	Replacement	Reason
spring.data.neo4j.auto-index		Automatic index creation is no longer supported.
spring.data.neo4j.embedded.enabled		Embedded mode is no longer supported, please use Testcontainers instead.
spring.data.neo4j.open-in-view
spring.data.neo4j.repositories.enabled	spring.data.neo4j.repositories.type
spring.data.neo4j.use-native-types		Native type support is now built-in.