Merge for 1.30.1 (pre-release) (#14134)

* Fix Copilot hover model selection (#14113)

* Update IntelliSense loc strings. (#14131)

* Update changelog for 1.30.1 (#14133)

* Update changelog for 1.30.1

---------

Co-authored-by: Ben McMorran <bemcmorr@microsoft.com>

Author: sean-mcmanus

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)

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"
+]

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"
 ]

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"
 ]

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"
+]

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"
+]

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"
+]

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"
+]

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"
+]

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"
+]