diff --git a/README.md b/README.md
index c0c8c12..b0b6bf4 100644
--- a/README.md
+++ b/README.md
@@ -130,6 +130,29 @@ be called when it's time to load the image, and should pass an error, or `null`
 and a buffer to its callback.
 
 
+Additionally localizations can be added if needed:
+```js
+pass.addLocalization("en", {
+  "GATE": "GATE",
+  "DEPART": "DEPART",
+  "ARRIVE": "ARRIVE",
+  "SEAT": "SEAT",
+  "PASSENGER": "PASSENGER",
+  "FLIGHT": "FLIGHT"
+});
+
+pass.addLocalization("ru", {
+  "GATE": "ВЫХОД",
+  "DEPART": "ВЫЛЕТ",
+  "ARRIVE": "ПРИЛЁТ",
+  "SEAT": "МЕСТО",
+  "PASSENGER": "ПАССАЖИР",
+  "FLIGHT": "РЕЙС"
+});
+```
+
+Localization applies for all fields' `label` and `value`. There is a note about that in [documentation](https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/PassKit_PG/Creating.html). 
+
 # Generate the file
 
 To generate a file:
diff --git a/lib/pass.js b/lib/pass.js
index 3fefcfd..5a95e89 100644
--- a/lib/pass.js
+++ b/lib/pass.js
@@ -17,8 +17,8 @@ var zlib              = require("zlib");
 // Top-level pass fields.
 var TOP_LEVEL           = [ "authenticationToken", "backgroundColor", "barcode", "description",
                             "foregroundColor", "labelColor", "locations", "logoText",
-                            "organizationName", "relevantDate", "serialNumber", 
-                            "suppressStripShine", "webServiceURL"];
+                            "organizationName", "relevantDate", "serialNumber",
+                            "suppressStripShine", "webServiceURL", "expirationDate"];
 // These top level fields are required for a valid pass.
 var REQUIRED_TOP_LEVEL  = [ "description", "organizationName", "passTypeIdentifier",
                             "serialNumber", "teamIdentifier" ];
@@ -46,6 +46,9 @@ function Pass(template, fields, images) {
   if (!this.structure)
     this.structure = this.fields[style] = {};
   this.images = cloneObject(images);
+
+  // For localizations support
+  this.localizations = {};
 }
 
 inherits(Pass, EventEmitter);
@@ -139,7 +142,7 @@ Fields.prototype.add = function(key, label, value, options) {
 // key      - Field key
 // label    - Field label (optional)
 // value    - Field value
-// Other field options (e.g. dateStyle) 
+// Other field options (e.g. dateStyle)
 Fields.prototype.get = function(key) {
   var fields = this.pass.structure[this.key];
   if (fields) {
@@ -180,6 +183,15 @@ Fields.prototype.clear = function() {
   return this;
 };
 
+// Localization
+Pass.prototype.addLocalization = function (lang, values) {
+  var keys = Object.keys(values);
+  // .string files formatting
+  var strings = keys.map(function(key) {
+    return "\"" + key + "\" = \"" + values[key].replace(/"/g, "\\\"") + "\";";
+  });
+  this.localizations[lang] = strings.join("\n");
+};
 
 // Validate pass, throws error if missing a mandatory top-level field or image.
 Pass.prototype.validate = function() {
@@ -238,6 +250,13 @@ Pass.prototype.pipe = function(output) {
   var passJson = new Buffer(JSON.stringify(this.getPassJSON()), "utf-8");
   addFile("pass.json").end(passJson, "utf8");
 
+  // Localization
+  var langs = Object.keys(this.localizations);
+  for (var i = 0; i < langs.length; i++) {
+    var lang = langs[i];
+    addFile(lang + ".lproj/pass.strings").end(new Buffer(this.localizations[lang]), 'utf-16');
+  }
+
   var expecting = 0;
   for (var key in this.images) {
     var filename = key.replace(/2x$/, "@2x") + ".png";
@@ -360,7 +379,7 @@ function signManifest(template, manifest, callback) {
     "-passin",    "pass:" + template.password
   ];
   var sign = execFile("openssl", args, { stdio: "pipe" }, function(error, stdout, stderr) {
-    var trimmedStderr = stderr.trim(); 
+    var trimmedStderr = stderr.trim();
     // Windows outputs some unhelpful error messages, but still produces a valid signature
     if (error || (trimmedStderr && trimmedStderr.indexOf('- done') < 0)) {
       callback(new Error(stderr));
diff --git a/package.json b/package.json
index ba5cfd0..ff09fc0 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,17 @@
 { "name": "passbook",
   "description": "iOS Passbook for the Node hacker",
   "homepage": "https://github.com/assaf/node-passbook",
-  "version": "2.1.1",
+  "version": "2.1.2",
   "author": {
     "name": "Assaf Arkin",
     "email": "assaf@labnotes.org"
   },
+  "contributors": [
+    {
+      "name": "Sergey Pronin",
+      "email" : "sergey@pronin.me"
+    }
+  ],
   "main": "./lib/index.js",
   "bin": {
     "node-passbook": "./bin/node-passbook"