Assuming latest supported

src/bin/start-keycloak/realmConfig/defaultConfig/defaultConfig.ts

@@ -48,7 +48,8 @@ export const { getSupportedKeycloakMajorVersions } = (() => {
 
                 return n;
             })
-            .filter(exclude(undefined));
+            .filter(exclude(undefined))
+            .sort((a, b) => b - a);
 
         return cache;
     }

src/bin/start-keycloak/start-keycloak.ts

@@ -173,12 +173,15 @@ export async function command(params: {
 
                 process.exit(1);
             } catch {
+                // NOTE: Latest version
+                const [n] = getSupportedKeycloakMajorVersions();
+
                 console.warn(
                     chalk.yellow(
-                        `Could not determine the major Keycloak version number from the docker image tag ${dockerImageTag}. Assuming 26`
+                        `Could not determine the major Keycloak version number from the docker image tag ${dockerImageTag}. Assuming ${n}`
                     )
                 );
-                return 26;
+                return n;
             }
         }