When looking at the documentation for [Common Application properties](https://docs.spring.io/spring-boot/docs/current/reference/html/appendix-application-properties.html), at the [Security section](https://docs.spring.io/spring-boot/docs/current/reference/html/appendix-application-properties.html#security-properties), I also found the properties prefixed by `spring.session`. In my opinion, the properties related to **Spring Session** would deserve their own section, as they are not really related to security. What do you think ? --- I found the merge of these properties is done there : https://github.com/spring-projects/spring-boot/blob/master/buildSrc/src/main/java/org/springframework/boot/build/context/properties/DocumentConfigurationProperties.java#L80