diff --git a/.gitignore b/.gitignore
index 449e3e8..f11ab13 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,10 @@ fsh-generated/**
 
 # editing files and folders
 .vscode/**
+
+# Ignore all files in the 'translations' directory
+/translations/*
+
+# Exclude 'input/translations' from being ignored
+!input/translations/
+!input/translations/**
diff --git a/ig.ini b/ig.ini
index 3998936..5c66c46 100644
--- a/ig.ini
+++ b/ig.ini
@@ -1,3 +1,4 @@
 [IG]
 ig = fsh-generated/resources/ImplementationGuide-ch.fhir.ig.ch-ig.json
-template = ch.fhir.ig.template#current
\ No newline at end of file
+# template = ch.fhir.ig.template#current
+template = fhir2.base.template#current
diff --git a/input/fsh/extensions/Test.fsh b/input/fsh/extensions/Test.fsh
new file mode 100644
index 0000000..c518512
--- /dev/null
+++ b/input/fsh/extensions/Test.fsh
@@ -0,0 +1,8 @@
+Extension: ChIgTest
+Id: ch-ig-test
+Title: "CH IG Test"
+Description: "CH IG extension as an example."
+Context: Practitioner
+* value[x] only string
+* valueString 1..1
+* valueString ^short = "Extension details"
diff --git a/input/fsh/profiles/Practitioner.fsh b/input/fsh/profiles/Practitioner.fsh
index 95ffbb9..baf8315 100644
--- a/input/fsh/profiles/Practitioner.fsh
+++ b/input/fsh/profiles/Practitioner.fsh
@@ -4,4 +4,4 @@ Id: ch-ig-practitioner
 Title: "CH IG Practitioner"
 Description: "Example profile defining a Practitioner resource."
 * . ^short = "CH IG Practitioner"
-
+* extension contains ChIgTest named test 0..1
diff --git a/input/pagecontent/extensions.md b/input/pagecontent/extensions.md
index a6d2020..26e59f9 100644
--- a/input/pagecontent/extensions.md
+++ b/input/pagecontent/extensions.md
@@ -1,2 +1,2 @@
 
-{% include list-extensions.xhtml %}
+{% lang-fragment list-extensions.xhtml %}
diff --git a/input/pagecontent/index.md b/input/pagecontent/index.md
index c75794c..a95ea0c 100644
--- a/input/pagecontent/index.md
+++ b/input/pagecontent/index.md
@@ -14,7 +14,7 @@ For detailed instructions and best practice approaches for developing implementa
 
 </div>
 
-**Download**: You can download this implementation guide in the [NPM package](https://confluence.hl7.org/display/FHIR/NPM+Package+Specification) format from [here](package.tgz).
+**Download**: You can download this implementation guide in the [NPM package](https://confluence.hl7.org/display/FHIR/NPM+Package+Specification) format from [here](../package.tgz).
 
 ### IP Statements
 This document is licensed under Creative Commons "No Rights Reserved" ([CC0](https://creativecommons.org/publicdomain/zero/1.0/)).
@@ -23,16 +23,16 @@ HL7®, HEALTH LEVEL SEVEN®, FHIR® and the FHIR <img src="icon-fhir-16.png" sty
 
 This implementation guide contains and references intellectual property owned by third parties ("Third Party IP"). Acceptance of these License Terms does not grant any rights with respect to Third Party IP. The licensee alone is responsible for identifying and obtaining any necessary licenses or authorizations to utilize Third Party IP in connection with the specification or otherwise.
 
-{% include ip-statements.xhtml %}
+{% lang-fragment ip-statements.xhtml %}
 
 ### Cross Version Analysis
 
-{% include cross-version-analysis.xhtml %}
+{% lang-fragment cross-version-analysis.xhtml %}
 
 ### Dependency Table
 
-{% include dependency-table.xhtml %}
+{% lang-fragment dependency-table.xhtml %}
 
 ### Globals Table
 
-{% include globals-table.xhtml %}
+{% lang-fragment globals-table.xhtml %}
diff --git a/input/pagecontent/profiles.md b/input/pagecontent/profiles.md
index 12e2e46..d4e20f4 100644
--- a/input/pagecontent/profiles.md
+++ b/input/pagecontent/profiles.md
@@ -1,6 +1,6 @@
 ### Resource Profiles
 
-{% include list-profiles.xhtml %}
+{% lang-fragment list-profiles.xhtml %}
 
 ### Data Type Profiles
 
diff --git a/input/pagecontent/terminology.md b/input/pagecontent/terminology.md
index fa76cda..f10ff39 100644
--- a/input/pagecontent/terminology.md
+++ b/input/pagecontent/terminology.md
@@ -1,15 +1,15 @@
 ### ValueSets
 
-{% include list-valuesets.xhtml %}
+{% lang-fragment list-valuesets.xhtml %}
 
 ### CodeSystems
   
-{% include list-codesystems.xhtml %}
+{% lang-fragment list-codesystems.xhtml %}
 
 ### ConceptMaps
 
-{% include list-conceptmaps.xhtml %}
+{% lang-fragment list-conceptmaps.xhtml %}
 
 ### NamingSystems
 
-{% include list-namingsystems.xhtml %}
+{% lang-fragment list-namingsystems.xhtml %}
diff --git a/input/pagecontent/translationinfo.md b/input/pagecontent/translationinfo.md
new file mode 100644
index 0000000..3be7fe6
--- /dev/null
+++ b/input/pagecontent/translationinfo.md
@@ -0,0 +1,2 @@
+### Translation Quality & Feedback
+If you notice any translation inaccuracies or have suggestions for improvement, please use the **'Propose a change'** link in the footer of the relevant page.
diff --git a/input/pagecontent/use-cases.md b/input/pagecontent/use-cases.md
new file mode 100644
index 0000000..419e01f
--- /dev/null
+++ b/input/pagecontent/use-cases.md
@@ -0,0 +1,8 @@
+This section describes the primary use cases and clinical scenarios that this implementation guide addresses.
+
+### Use Case 1: Follow-up Visit
+The patient [Petra Meier](Patient-PetraMeier.html), born July 23, 1985, presents for an [ambulatory follow-up visit](Encounter-xver-encounter-r4.html) at the practice.
+
+### Use Case 2: [Title]
+
+[Placeholder: Add additional use cases.]
diff --git a/input/translations/de/pagecontent/translationinfo.md b/input/translations/de/pagecontent/translationinfo.md
new file mode 100644
index 0000000..eac29dc
--- /dev/null
+++ b/input/translations/de/pagecontent/translationinfo.md
@@ -0,0 +1,2 @@
+### Übersetzungsqualität & Feedback
+Wenn Sie Ungenauigkeiten in der Übersetzung feststellen oder Verbesserungsvorschläge haben, nutzen Sie bitte den Link **'Propose a change'** in der Fusszeile der entsprechenden Seite.
diff --git a/input/translations/de/pagecontent/use-cases.md b/input/translations/de/pagecontent/use-cases.md
new file mode 100644
index 0000000..e6a2dc0
--- /dev/null
+++ b/input/translations/de/pagecontent/use-cases.md
@@ -0,0 +1,8 @@
+Dieser Abschnitt beschreibt die primären Anwendungsfälle und klinischen Szenarien, die dieser Implementation Guide adressiert.
+
+### Anwendungsfall 1: Nachuntersuchung
+Die Patientin [Petra Meier](Patient-PetraMeier.html), geboren am 23. Juli 1985, stellt sich zur [ambulanten Nachuntersuchung](Encounter-xver-encounter-r4.html) in der Praxis vor.
+
+### Anwendungsfall 2: [Titel]
+
+[Platzhalter: Weitere Anwendungsfälle ergänzen.]
diff --git a/input/translations/fr/pagecontent/translationinfo.md b/input/translations/fr/pagecontent/translationinfo.md
new file mode 100644
index 0000000..7eae060
--- /dev/null
+++ b/input/translations/fr/pagecontent/translationinfo.md
@@ -0,0 +1,2 @@
+### Qualité de traduction & Feedback
+Si vous constatez des inexactitudes dans la traduction ou si vous avez des suggestions d'amélioration, veuillez utiliser le lien **'Propose a change'** dans le pied de page de la page concernée.
diff --git a/input/translations/fr/pagecontent/use-cases.md b/input/translations/fr/pagecontent/use-cases.md
new file mode 100644
index 0000000..6ae1f2f
--- /dev/null
+++ b/input/translations/fr/pagecontent/use-cases.md
@@ -0,0 +1,8 @@
+Cette section décrit les principaux cas d'application et scénarios cliniques couverts par ce guide d'implémentation.
+
+### Cas d'application 1 : Consultation de suivi
+La patiente [Petra Meier](Patient-PetraMeier.html), née le 23 juillet 1985, se présente pour une [consultation de suivi ambulatoire](Encounter-xver-encounter-r4.html) au cabinet.
+
+### Cas d'application 2 : [Titre]
+
+[Espace réservé : Ajouter d'autres cas d'application.]
diff --git a/publication-request.json b/publication-request.json
index 242d1d3..85258fa 100644
--- a/publication-request.json
+++ b/publication-request.json
@@ -1,7 +1,7 @@
 {
   "package-id" : "ch.fhir.ig.ch-ig",
-  "version" : "1.2.3",
-  "path" : "http://fhir.ch/ig/ch-ig/1.2.3",
+  "version" : "1.2.4",
+  "path" : "http://fhir.ch/ig/ch-ig/1.2.4",
   "mode" : "milestone",
   "status" : "trial-use",
   "sequence" : "STU",
diff --git a/sushi-config.yaml b/sushi-config.yaml
index a63e6af..cfd7b72 100644
--- a/sushi-config.yaml
+++ b/sushi-config.yaml
@@ -13,10 +13,10 @@ license: CC0-1.0
 copyright: CC0-1.0
 jurisdiction: urn:iso:std:iso:3166#CHE
 date: 2025-12-10
-version: 1.2.3 # 1.2.3 published in December 2025
+version: 1.2.4 # 1.2.3 published in December 2025
 fhirVersion: 4.0.1
 copyrightYear: 2024+
-releaseLabel: draft # ci-build # ci-build | draft | qa-preview | ballot | trial-use | release | update | normative+trial-use
+releaseLabel: ci-build # ci-build # ci-build | draft | qa-preview | ballot | trial-use | release | update | normative+trial-use
 publisher:
   name: HL7 Switzerland
 contact:
@@ -33,6 +33,8 @@ dependencies:
 pages:
   index.md:
     title: Home
+  use-cases.md:
+    title: Use Cases
   guidance.md:
     title: Guidance
   profiles.md:
@@ -43,9 +45,12 @@ pages:
     title: Terminology
   changelog.md:
     title: Changelog  
+  translationinfo.md:
+    title: Translation Information
 
 menu:
   Home: index.html
+  Use Cases: use-cases.html
   Guidance: guidance.html
   Profiles: profiles.html
   Extensions: extensions.html
@@ -71,6 +76,14 @@ parameters:
   pin-canonicals: pin-multiples
   path-resource:
     - input/resources  
+  # multi-lingual support
+  i18n-default-lang: en 
+  i18n-lang: 
+    - de
+    - fr
+  translation-sources:
+    - input/translations/de
+    - input/translations/fr
 
 FSHOnly: false
 applyExtensionMetadataToRoot: false