[releng] Prepare next release

Signed-off-by: Axel RICHARD <axel.richard@obeo.fr>

Author: AxelRICHARD

CHANGELOG.adoc

@@ -1,18 +1,30 @@
 = Changelog
 
-== v2025.2.0
+== v2025.4.0 (work in progress)
 
 === Shapes
 
 === Breaking changes
 
+=== Dependency update
+
+=== Bug fixes
+
+=== Improvements
+
+=== New features
+
+
+== v2025.2.0
+
+=== Breaking changes
+
 - https://github.com/eclipse-syson/syson/issues/987[#987] Implementation of drag and drop in SysOn Explorer view
 * A new service has been added to centralize the behavior of moving semantic elements in _org.eclipse.syson.services.api.ISysMLMoveElementService_.
 It replaces the public methods _UtilService.moveMembership_ and _ToolService.moveSemanticElement_
 * A new service has been added to centralize the verification of read-only elements in _org.eclipse.syson.services.api.ISysMLReadOnlyService_.
 - https://github.com/eclipse-syson/syson/issues/1018[#1018] `SysMLStandardLibrariesConfiguration` has been refactored and renamed `SysONDefaultLibrariesConfiguration`.
 
-
 === Dependency update
 
 - Switch to Sirius Web 2025.2.0

doc/content/modules/user-manual/pages/release-notes/2025.4.0.adoc

@@ -0,0 +1,15 @@
+= 2025.4.0 (work in progress)
+
+== Key highlights
+
+== Bug fixes
+
+== New features
+
+== Improvements
+
+== Dependency update
+
+== Technical details
+
+* For technical details on this {product} release (including breaking changes) please refer to https://github.com/eclipse-syson/syson/blob/main/CHANGELOG.adoc[changelog].

doc/content/modules/user-manual/pages/release-notes/release-notes.adoc

@@ -2,6 +2,7 @@
 
 :sectnums!:
 
+include::user-manual:release-notes/2025.4.0.adoc[leveloffset=+1]
 include::user-manual:release-notes/2025.2.0.adoc[leveloffset=+1]
 include::user-manual:release-notes/2025.1.0.adoc[leveloffset=+1]
 include::user-manual:release-notes/2024.11.0.adoc[leveloffset=+1]

doc/docs-site/antora-playbook.yml

@@ -1,6 +1,6 @@
 site:
   title: SysON Docs
-  start_page: v2025.1.0@syson::index.adoc
+  start_page: v2025.2.0@syson::index.adoc
 
 output:
   clean: true

docker-compose.yml

@@ -9,7 +9,7 @@ services:
     networks:
       - syson
   app:
-    image: "${IMAGE_TAG:-eclipsesyson/syson:v2025.2.0}"
+    image: "${IMAGE_TAG:-eclipsesyson/syson:latest}"
     ports:
       - "8080:8080"
     environment: