Merge branch '2.4.x'

See gh-26654

spring-boot-project/spring-boot-docs/src/docs/asciidoc/features/profiles.adoc

@@ -24,6 +24,16 @@ For example, you could include it in your `application.properties`, as shown in
 
 You could also specify it on the command line by using the following switch: `--spring.profiles.active=dev,hsqldb`.
 
+If no profile is active, a default profile is enabled.
+The name of the default profile is `default` and it can be tuned using the configprop:spring.profiles.default[] `Environment` property, as shown in the following example:
+
+[source,yaml,indent=0,subs="verbatim",configprops,configblocks]
+----
+	spring:
+	  profiles:
+	    default: "none"
+----
+
 
 
 [[features.profiles.adding-active-profiles]]