diff --git a/Extension/CHANGELOG.md b/Extension/CHANGELOG.md
index e21bb3e7f..8c71f4eb6 100644
--- a/Extension/CHANGELOG.md
+++ b/Extension/CHANGELOG.md
@@ -1,5 +1,23 @@
 # C/C++ for Visual Studio Code Changelog
 
+## Version 1.30.1: January 13, 2026
+### Enhancements
+* Add IntelliSense support for C23/C++26 `#embed`. [#13705](https://github.com/microsoft/vscode-cpptools/issues/13705)
+* Add IntelliSense support for C++23 multidimensional subscript operators for gcc/clang modes (not msvc yet).
+* Add IntelliSense support for C++23 `static operator[]`.
+
+### Bug Fixes
+* Fix an incorrect IntelliSense error on an overridden method. [#13729](https://github.com/microsoft/vscode-cpptools/issues/13729)
+* Fix an IntelliSense error with `std::countl_zero`. [#13876](https://github.com/microsoft/vscode-cpptools/issues/13876)
+* Fix an IntelliSense squiggle on the wrong identifier when assigning to a constant member variable. [#14018](https://github.com/microsoft/vscode-cpptools/issues/14018)
+* Fix IntelliSense with clang mode C++23 deduced type construction with `auto`. [#14041](https://github.com/microsoft/vscode-cpptools/issues/14041)
+* Fix an IntelliSense error with `std::popcount`. [#14105](https://github.com/microsoft/vscode-cpptools/issues/14105)
+* Fix GitHub Copilot hover. [#14114](https://github.com/microsoft/vscode-cpptools/issues/14114)
+* Fix headers sometimes using a header-only configuration from a configuration provider instead of the source file's configuration. [#14126](https://github.com/microsoft/vscode-cpptools/issues/14126)
+* Fix a reference in a `#define` not being found if it's directly after a `#include`. [#14130](https://github.com/microsoft/vscode-cpptools/issues/14130)
+* Fix a bug that could cause IntelliSense operations to fail when a document is closed during processing.
+* Fix a bug with internal buffer handling that could cause some IntelliSense operations to fail.
+
 ## Version 1.30.0: December 15, 2025
 ### Enhancements
 * Change `C` completion behavior to automatically trigger after the `struct/union/enum` keyword and to filter based on the keyword. [#13634](https://github.com/microsoft/vscode-cpptools/issues/13634)
diff --git a/Extension/bin/messages/cs/messages.json b/Extension/bin/messages/cs/messages.json
index 5a688c65f..ccf5503f3 100644
--- a/Extension/bin/messages/cs/messages.json
+++ b/Extension/bin/messages/cs/messages.json
@@ -3745,5 +3745,7 @@
     "výsledek inicializátoru odkazuje na proměnnou dllimport",
     "šablona s atributem no_specializations nemůže být specializovaná",
     "„static“ je zde nestandardní",
-    "%nd byl dříve deklarován bez explicitního základu výčtu"
-]
+    "%nd byl dříve deklarován bez explicitního základu výčtu",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/de/messages.json b/Extension/bin/messages/de/messages.json
index d6035fd3c..de80af3e6 100644
--- a/Extension/bin/messages/de/messages.json
+++ b/Extension/bin/messages/de/messages.json
@@ -3745,5 +3745,7 @@
     "Initialisiererergebnis behebt eine dllimport-Variable",
     "Vorlage mit dem Attribut „no_specializations“ kann nicht spezialisiert werden",
     "„static“ entspricht hier nicht dem Standard",
-    "%nd wurde zuvor ohne explizite Enumerationsbasis deklariert"
+    "%nd wurde zuvor ohne explizite Enumerationsbasis deklariert",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
 ]
\ No newline at end of file
diff --git a/Extension/bin/messages/es/messages.json b/Extension/bin/messages/es/messages.json
index cec221801..8bc453167 100644
--- a/Extension/bin/messages/es/messages.json
+++ b/Extension/bin/messages/es/messages.json
@@ -3745,5 +3745,7 @@
     "el resultado del inicializador se dirige a una variable dllimport",
     "La plantilla con el atributo \"no_specializations\" no se puede especializar",
     "\"static\" no es estándar aquí",
-    "%nd se declaró previamente sin una base explícita de enumeración"
+    "%nd se declaró previamente sin una base explícita de enumeración",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
 ]
\ No newline at end of file
diff --git a/Extension/bin/messages/fr/messages.json b/Extension/bin/messages/fr/messages.json
index 33b8a2019..8785411e1 100644
--- a/Extension/bin/messages/fr/messages.json
+++ b/Extension/bin/messages/fr/messages.json
@@ -3745,5 +3745,7 @@
     "Le résultat de l’initialiseur traite une variable dllimport",
     "le modèle avec l’attribut « no_specializations » ne peut pas être spécialisé",
     "« static » n’est pas standard ici",
-    "%nd a été déclaré précédemment sans base d’énumération explicite"
-]
+    "%nd a été déclaré précédemment sans base d’énumération explicite",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/it/messages.json b/Extension/bin/messages/it/messages.json
index 6ff2af5c2..43c7ddb5b 100644
--- a/Extension/bin/messages/it/messages.json
+++ b/Extension/bin/messages/it/messages.json
@@ -3745,5 +3745,7 @@
     "il risultato dell'inizializzatore punta a una variabile dllimport",
     "modello con l'attributo 'no_specializations' non può essere specializzato",
     "'static' non è standard qui",
-    "%nd era stato dichiarato in precedenza senza una base di enumerazione esplicita"
-]
+    "%nd era stato dichiarato in precedenza senza una base di enumerazione esplicita",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/ja/messages.json b/Extension/bin/messages/ja/messages.json
index 7212a999b..d4b60182c 100644
--- a/Extension/bin/messages/ja/messages.json
+++ b/Extension/bin/messages/ja/messages.json
@@ -3745,5 +3745,7 @@
     "初期化子の結果は dllimport 変数をアドレス指定します",
     "'no_specializations' 属性を持つテンプレートを特殊化することはできません",
     "'static' はここでは非標準です",
-    "%nd は、明示的な列挙型ベースなしで以前に宣言されました"
-]
+    "%nd は、明示的な列挙型ベースなしで以前に宣言されました",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/ko/messages.json b/Extension/bin/messages/ko/messages.json
index f02388c8f..c7ff3d8f2 100644
--- a/Extension/bin/messages/ko/messages.json
+++ b/Extension/bin/messages/ko/messages.json
@@ -3745,5 +3745,7 @@
     "이니셜라이저 결과가 dllimport 변수를 참조합니다.",
     "'no_specializations' 특성이 있는 템플릿은 특수화할 수 없습니다.",
     "여기서 'static'은 표준이 아닙니다.",
-    "%nd은(는) 이전에 명시적 열거형 기반 없이 선언되었습니다."
-]
+    "%nd은(는) 이전에 명시적 열거형 기반 없이 선언되었습니다.",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/pl/messages.json b/Extension/bin/messages/pl/messages.json
index 254919394..53e627f90 100644
--- a/Extension/bin/messages/pl/messages.json
+++ b/Extension/bin/messages/pl/messages.json
@@ -3745,5 +3745,7 @@
     "wynik inicjatora adresuje zmienną dllimport",
     "szablon z atrybutem „no_specializations” nie może być wyspecjalizowany",
     "„static” jest tutaj niestandardowy",
-    "funkcja %nd została poprzednio zadeklarowana bez jawnej bazy wyliczenia"
-]
+    "funkcja %nd została poprzednio zadeklarowana bez jawnej bazy wyliczenia",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/pt-br/messages.json b/Extension/bin/messages/pt-br/messages.json
index a9c1a0de4..4d5705cd7 100644
--- a/Extension/bin/messages/pt-br/messages.json
+++ b/Extension/bin/messages/pt-br/messages.json
@@ -3745,5 +3745,7 @@
     "o resultado do inicializador trata de uma variável dllimport",
     "modelo com atributo \"no_specializations\" não pode ser especializado",
     "\"static\" não é padrão aqui",
-    "%nd foi declarado anteriormente sem uma base de enumeração explícita"
-]
+    "%nd foi declarado anteriormente sem uma base de enumeração explícita",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/ru/messages.json b/Extension/bin/messages/ru/messages.json
index f9aa5ac3e..e735f29ca 100644
--- a/Extension/bin/messages/ru/messages.json
+++ b/Extension/bin/messages/ru/messages.json
@@ -3745,5 +3745,7 @@
     "результат инициализатора указывает на переменную dllimport",
     "шаблон с атрибутом \"no_specializations\" не может иметь специализации",
     "\"static\" является здесь нестандартным",
-    "%nd ранее был объявлен без явной базы перечисления"
-]
+    "%nd ранее был объявлен без явной базы перечисления",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/tr/messages.json b/Extension/bin/messages/tr/messages.json
index 3ae3c58a3..dce7ef676 100644
--- a/Extension/bin/messages/tr/messages.json
+++ b/Extension/bin/messages/tr/messages.json
@@ -3745,5 +3745,7 @@
     "başlatıcı sonucu bir dllimport değişkenini adresler",
     "'no_specializations' özniteliğine sahip şablon özelleştirilemez",
     "'static' burada standart dışıdır",
-    "%nd daha önce açık bir sabit liste tabanı olmadan tanımlanmıştı"
-]
+    "%nd daha önce açık bir sabit liste tabanı olmadan tanımlanmıştı",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/zh-cn/messages.json b/Extension/bin/messages/zh-cn/messages.json
index d710bf386..c1db08e4e 100644
--- a/Extension/bin/messages/zh-cn/messages.json
+++ b/Extension/bin/messages/zh-cn/messages.json
@@ -3745,5 +3745,7 @@
     "初始值设定项结果指向一个 dllimport 变量",
     "带有 \"no_specializations\" 属性的模板不能被专用化",
     "此处使用 \"static\" 不符合标准",
-    "之前声明 %nd 时未指定显式枚举基类型"
-]
+    "之前声明 %nd 时未指定显式枚举基类型",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/bin/messages/zh-tw/messages.json b/Extension/bin/messages/zh-tw/messages.json
index 43ee435a4..08f77ae03 100644
--- a/Extension/bin/messages/zh-tw/messages.json
+++ b/Extension/bin/messages/zh-tw/messages.json
@@ -3745,5 +3745,7 @@
     "初始設定式結果會處理 dllimport 變數",
     "具有 'no_specializations' 屬性的範本無法特殊化",
     "此處使用的 'static' 非標準",
-    "%nd 先前宣告時未明確指定的列舉基底"
-]
+    "%nd 先前宣告時未明確指定的列舉基底",
+    "missing \"typename\" is nonstandard here",
+    "abbreviated function template syntax is nonstandard for deduction guides"
+]
\ No newline at end of file
diff --git a/Extension/package.json b/Extension/package.json
index 82df4bbae..99531a770 100644
--- a/Extension/package.json
+++ b/Extension/package.json
@@ -2,7 +2,7 @@
     "name": "cpptools",
     "displayName": "C/C++",
     "description": "C/C++ IntelliSense, debugging, and code browsing.",
-    "version": "1.30.0-main",
+    "version": "1.30.1-main",
     "publisher": "ms-vscode",
     "icon": "LanguageCCPP_color_128x.png",
     "readme": "README.md",
diff --git a/Extension/src/constants.ts b/Extension/src/constants.ts
index 059bac203..998d1856c 100644
--- a/Extension/src/constants.ts
+++ b/Extension/src/constants.ts
@@ -15,4 +15,4 @@ export const isLinux = OperatingSystem === 'linux';
 export const verboseEnabled = false;
 
 // Model selector for Copilot features
-export const modelSelector = { vendor: 'copilot', family: 'gpt-4' };
+export const modelSelector = { vendor: 'copilot' };