* https://github.com/spring-projects/spring-security/issues/11026[gh-11026] - Use `RequestAttributeSecurityContextRepository` instead of `NullSecurityContextRepository`
* https://github.com/spring-projects/spring-security/issues/11899[gh-11899] - Use `MvcRequestMatcher` by default if Spring MVC is present.
You can configure a different `RequestMatcher` by using the https://docs.spring.io/spring-security/reference/servlet/appendix/namespace/http.html#nsa-http-attributes[request-matcher attribute from <http>].
* Change use-authorization-manager="true" to default
If the application uses `use-expressions="true"` or `access-decision-manager-ref` switch to `use-expressions="false"` or `authorization-manager-ref`, respectively.
If application relies on the implicit `<intercept-url pattern="/**" access="permitAll"/>`, this is no longer implicit and needs to be specified.