diff --git a/custom_components/bahmcloud_store/views.py b/custom_components/bahmcloud_store/views.py
index a66a779..d356c5d 100644
--- a/custom_components/bahmcloud_store/views.py
+++ b/custom_components/bahmcloud_store/views.py
@@ -292,6 +292,27 @@ class BCSReadmeView(HomeAssistantView):
         return web.json_response({"ok": True, "readme": md_str, "html": html})
 
 
+class BCSVersionsView(HomeAssistantView):
+    url = "/api/bcs/versions"
+    name = "api:bcs_versions"
+    requires_auth = True
+
+    def __init__(self, core: Any) -> None:
+        self.core: BCSCore = core
+
+    async def get(self, request: web.Request) -> web.Response:
+        repo_id = request.query.get("repo_id")
+        if not repo_id:
+            return web.json_response({"ok": False, "message": "Missing repo_id"}, status=400)
+
+        try:
+            versions = await self.core.list_repo_versions(repo_id)
+            return web.json_response({"ok": True, "repo_id": repo_id, "versions": versions}, status=200)
+        except Exception as e:
+            _LOGGER.exception("BCS list versions failed: %s", e)
+            return web.json_response({"ok": False, "message": str(e) or "List versions failed"}, status=500)
+
+
 class BCSInstallView(HomeAssistantView):
     url = "/api/bcs/install"
     name = "api:bcs_install"
@@ -302,11 +323,13 @@ class BCSInstallView(HomeAssistantView):
 
     async def post(self, request: web.Request) -> web.Response:
         repo_id = request.query.get("repo_id")
+        version = request.query.get("version")
         if not repo_id:
             return web.json_response({"ok": False, "message": "Missing repo_id"}, status=400)
 
         try:
-            result = await self.core.install_repo(repo_id)
+            v = str(version).strip() if version is not None else None
+            result = await self.core.install_repo(repo_id, version=v)
             return web.json_response(result, status=200)
         except Exception as e:
             _LOGGER.exception("BCS install failed: %s", e)
@@ -323,11 +346,13 @@ class BCSUpdateView(HomeAssistantView):
 
     async def post(self, request: web.Request) -> web.Response:
         repo_id = request.query.get("repo_id")
+        version = request.query.get("version")
         if not repo_id:
             return web.json_response({"ok": False, "message": "Missing repo_id"}, status=400)
 
         try:
-            result = await self.core.update_repo(repo_id)
+            v = str(version).strip() if version is not None else None
+            result = await self.core.update_repo(repo_id, version=v)
             return web.json_response(result, status=200)
         except Exception as e:
             _LOGGER.exception("BCS update failed: %s", e)