SIVA-670 Update roadmap

docs/siva3/roadmap.md

@@ -4,19 +4,10 @@ This roadmap is for information purposes and can change without prior notice.
 
 ## Planned releases
 
-### 3.8.0 - April 2024
-- Option to ask revocation for signatures during validation
-- Request size limitation for post requests (default 20 MB)
-- Java 17
-  Spring Boot 3.2.2
-- Digidoc4j version update to 5.3.0
-- DSS version update to version 6.0.0
-- Move integrations tests to separate repository
-- Dependency updates
-- Bug fixes
-
 ### 3.9.0 - September 2024
 - LTA support
+- X-Road REST Message Protocol support
+- X-Road SOAP Message Protocol discontinued
 - Digidoc4j version update to 5.4.0
 - Dependency updates