Implement cipher key encryption (#3990)

src/api/core/mod.rs

@@ -194,7 +194,12 @@ fn version() -> Json<&'static str> {
 fn config() -> Json<Value> {
     let domain = crate::CONFIG.domain();
     Json(json!({
-        "version": crate::VERSION,
+        // Note: The clients use this version to handle backwards compatibility concerns
+        // This means they expect a version that closely matches the Bitwarden server version
+        // We should make sure that we keep this updated when we support the new server features
+        // Version history:
+        // - Individual cipher key encryption: 2023.9.1
+        "version": "2023.9.1",
         "gitHash": option_env!("GIT_REV"),
         "server": {
           "name": "Vaultwarden",
@@ -207,6 +212,12 @@ fn config() -> Json<Value> {
           "notifications": format!("{domain}/notifications"),
           "sso": "",
         },
+        "featureStates": {
+          // Any feature flags that we want the clients to use
+          // Can check the enabled ones at:
+          // https://vault.bitwarden.com/api/config
+          "autofill-v2": true
+        },
         "object": "config",
     }))
 }