diff --git a/CHANGELOG.md b/CHANGELOG.md
index f2b57899..fd9e1ff9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,3 @@
 # CHANGELOG
 
-Lib version: 1.11.0-SNAPSHOT-250606113824
+Lib version: 1.11.0-SNAPSHOT-250606142534
diff --git a/lib/calendar.pbjson.dart b/lib/calendar.pbjson.dart
index d6124592..109a3c3f 100644
--- a/lib/calendar.pbjson.dart
+++ b/lib/calendar.pbjson.dart
@@ -241,8 +241,8 @@ const GetPublicHolidaysRequest$json = {
 
 /// Descriptor for `GetPublicHolidaysRequest`. Decode as a `google.protobuf.DescriptorProto`.
 final $typed_data.Uint8List getPublicHolidaysRequestDescriptor = $convert.base64Decode(
-    'ChhHZXRQdWJsaWNIb2xpZGF5c1JlcXVlc3QSKgoLQ291bnRyeUNvZGUYASABKAlCCPpCBXID+A'
-    'EBUgtDb3VudHJ5Q29kZRInCghVcFRvWWVhchgCIAEoDUIL+kIIKgYQmBEo6Q9SCFVwVG9ZZWFy');
+    'ChhHZXRQdWJsaWNIb2xpZGF5c1JlcXVlc3QSKgoLQ291bnRyeUNvZGUYASABKAlCCPpCBXIDiA'
+    'IBUgtDb3VudHJ5Q29kZRInCghVcFRvWWVhchgCIAEoDUIL+kIIKgYQmBEo6Q9SCFVwVG9ZZWFy');
 
 @$core.Deprecated('Use getPublicHolidaysResponseDescriptor instead')
 const GetPublicHolidaysResponse$json = {
diff --git a/lib/validate.pb.dart b/lib/validate.pb.dart
index 0e62d60c..0586ede8 100644
--- a/lib/validate.pb.dart
+++ b/lib/validate.pb.dart
@@ -2288,6 +2288,7 @@ enum StringRules_WellKnown {
   tzData, 
   countryCodeIso3166, 
   languageIso639, 
+  countryCodeIso3166Alpha2, 
   notSet
 }
 
@@ -2326,6 +2327,7 @@ class StringRules extends $pb.GeneratedMessage {
     $core.bool? ignoreEmpty,
     $core.bool? countryCodeIso3166,
     $core.bool? languageIso639,
+    $core.bool? countryCodeIso3166Alpha2,
   }) {
     final result = create();
     if (const_1 != null) result.const_1 = const_1;
@@ -2360,6 +2362,7 @@ class StringRules extends $pb.GeneratedMessage {
     if (ignoreEmpty != null) result.ignoreEmpty = ignoreEmpty;
     if (countryCodeIso3166 != null) result.countryCodeIso3166 = countryCodeIso3166;
     if (languageIso639 != null) result.languageIso639 = languageIso639;
+    if (countryCodeIso3166Alpha2 != null) result.countryCodeIso3166Alpha2 = countryCodeIso3166Alpha2;
     return result;
   }
 
@@ -2384,10 +2387,11 @@ class StringRules extends $pb.GeneratedMessage {
     28 : StringRules_WellKnown.tzData,
     31 : StringRules_WellKnown.countryCodeIso3166,
     32 : StringRules_WellKnown.languageIso639,
+    33 : StringRules_WellKnown.countryCodeIso3166Alpha2,
     0 : StringRules_WellKnown.notSet
   };
   static final $pb.BuilderInfo _i = $pb.BuilderInfo(_omitMessageNames ? '' : 'StringRules', package: const $pb.PackageName(_omitMessageNames ? '' : 'validate'), createEmptyInstance: create)
-    ..oo(0, [12, 13, 14, 15, 16, 17, 18, 21, 22, 24, 26, 27, 28, 31, 32])
+    ..oo(0, [12, 13, 14, 15, 16, 17, 18, 21, 22, 24, 26, 27, 28, 31, 32, 33])
     ..aOS(1, _omitFieldNames ? '' : 'const')
     ..a<$fixnum.Int64>(2, _omitFieldNames ? '' : 'minLen', $pb.PbFieldType.OU6, defaultOrMaker: $fixnum.Int64.ZERO)
     ..a<$fixnum.Int64>(3, _omitFieldNames ? '' : 'maxLen', $pb.PbFieldType.OU6, defaultOrMaker: $fixnum.Int64.ZERO)
@@ -2420,6 +2424,7 @@ class StringRules extends $pb.GeneratedMessage {
     ..aOB(30, _omitFieldNames ? '' : 'ignoreEmpty')
     ..aOB(31, _omitFieldNames ? '' : 'countryCodeIso3166', protoName: 'countryCodeIso3166')
     ..aOB(32, _omitFieldNames ? '' : 'languageIso639', protoName: 'languageIso639')
+    ..aOB(33, _omitFieldNames ? '' : 'countryCodeIso3166Alpha2', protoName: 'countryCodeIso3166Alpha2')
     ..hasRequiredFields = false
   ;
 
@@ -2787,6 +2792,17 @@ class StringRules extends $pb.GeneratedMessage {
   $core.bool hasLanguageIso639() => $_has(31);
   @$pb.TagNumber(32)
   void clearLanguageIso639() => $_clearField(32);
+
+  /// countryCodeIso3166Alpha2 specifes that the field must be either a valid alpha-2 country code as
+  /// defined by ISO 3166
+  @$pb.TagNumber(33)
+  $core.bool get countryCodeIso3166Alpha2 => $_getBF(32);
+  @$pb.TagNumber(33)
+  set countryCodeIso3166Alpha2($core.bool value) => $_setBool(32, value);
+  @$pb.TagNumber(33)
+  $core.bool hasCountryCodeIso3166Alpha2() => $_has(32);
+  @$pb.TagNumber(33)
+  void clearCountryCodeIso3166Alpha2() => $_clearField(33);
 }
 
 enum BytesRules_WellKnown {
diff --git a/lib/validate.pbjson.dart b/lib/validate.pbjson.dart
index 73b35ea5..68ab6381 100644
--- a/lib/validate.pbjson.dart
+++ b/lib/validate.pbjson.dart
@@ -408,6 +408,7 @@ const StringRules$json = {
     {'1': 'tzData', '3': 28, '4': 1, '5': 8, '9': 0, '10': 'tzData'},
     {'1': 'countryCodeIso3166', '3': 31, '4': 1, '5': 8, '9': 0, '10': 'countryCodeIso3166'},
     {'1': 'languageIso639', '3': 32, '4': 1, '5': 8, '9': 0, '10': 'languageIso639'},
+    {'1': 'countryCodeIso3166Alpha2', '3': 33, '4': 1, '5': 8, '9': 0, '10': 'countryCodeIso3166Alpha2'},
     {'1': 'strict', '3': 25, '4': 1, '5': 8, '7': 'true', '10': 'strict'},
     {'1': 'ignore_empty', '3': 30, '4': 1, '5': 8, '10': 'ignoreEmpty'},
   ],
@@ -433,9 +434,10 @@ final $typed_data.Uint8List stringRulesDescriptor = $convert.base64Decode(
     'DndlbGxLbm93blJlZ2V4EiIKC2RhdGVJc284NjAxGBogASgISABSC2RhdGVJc284NjAxEioKD2'
     'xhbmd1YWdlSXNvNjM5MRgbIAEoCEgAUg9sYW5ndWFnZUlzbzYzOTESGAoGdHpEYXRhGBwgASgI'
     'SABSBnR6RGF0YRIwChJjb3VudHJ5Q29kZUlzbzMxNjYYHyABKAhIAFISY291bnRyeUNvZGVJc2'
-    '8zMTY2EigKDmxhbmd1YWdlSXNvNjM5GCAgASgISABSDmxhbmd1YWdlSXNvNjM5EhwKBnN0cmlj'
-    'dBgZIAEoCDoEdHJ1ZVIGc3RyaWN0EiEKDGlnbm9yZV9lbXB0eRgeIAEoCFILaWdub3JlRW1wdH'
-    'lCDAoKd2VsbF9rbm93bg==');
+    '8zMTY2EigKDmxhbmd1YWdlSXNvNjM5GCAgASgISABSDmxhbmd1YWdlSXNvNjM5EjwKGGNvdW50'
+    'cnlDb2RlSXNvMzE2NkFscGhhMhghIAEoCEgAUhhjb3VudHJ5Q29kZUlzbzMxNjZBbHBoYTISHA'
+    'oGc3RyaWN0GBkgASgIOgR0cnVlUgZzdHJpY3QSIQoMaWdub3JlX2VtcHR5GB4gASgIUgtpZ25v'
+    'cmVFbXB0eUIMCgp3ZWxsX2tub3du');
 
 @$core.Deprecated('Use bytesRulesDescriptor instead')
 const BytesRules$json = {
diff --git a/pubspec.yaml b/pubspec.yaml
index 81617cfc..01e974ee 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: dart_core_sdk
 description: dart libs from core model proto files
-version: 1.11.0-SNAPSHOT-250606113824
+version: 1.11.0-SNAPSHOT-250606142534
 homepage: ''
 publish_to: ''
 repository: ''