Spring Boot 2.2.0 M2 Configuration Changelog

Configuration properties change between 2.2.0.M1 and 2.2.0.M2

Table 1. Deprecated keys in `2.2.0.M2`
Key	Replacement	Reason
`server.use-forward-headers`
`spring.data.elasticsearch.cluster-name`		The transport client support is deprecated.
`spring.data.elasticsearch.cluster-nodes`		The transport client support is deprecated.
`spring.data.elasticsearch.properties`		The transport client support is deprecated.
`spring.elasticsearch.jest.uris`		The Jest client support is deprecated.

Table 2. New keys in `2.2.0.M2`
Key	Default value	Description
`server.forward-headers-strategy`		Strategy for handling X-Forwarded-* headers.
`server.tomcat.accesslog.check-exists`	`false`	Whether to check for log file existence so it can be recreated it if an external process has renamed it.
`server.tomcat.accesslog.condition-if`		Whether logging of the request will only be enabled if "ServletRequest.getAttribute(conditionIf)" does not yield null.
`server.tomcat.accesslog.condition-unless`		Whether logging of the request will only be enabled if "ServletRequest.getAttribute(conditionUnless)" yield null.
`server.tomcat.accesslog.encoding`		Character set used by the log file.
`server.tomcat.accesslog.ipv6-canonical`	`false`	Whether to use IPv6 canonical representation format as defined by RFC 5952.
`server.tomcat.accesslog.locale`		Locale used to format timestamps in log entries and in log file name suffix.
`spring.data.mongodb.auto-index-creation`		Whether to enable auto-index creation.
`spring.rsocket.server.address`		Network address to which the server should bind.
`spring.rsocket.server.mapping-path`		Path under which RSocket handles requests (only works with websocket transport).
`spring.rsocket.server.port`		Server port.
`spring.rsocket.server.transport`		RSocket transport protocol.
`spring.security.oauth2.resourceserver.jwt.public-key-location`		Location of the file containing the public key used to verify a JWT.