c++20 to c++23

Author: n-n-code

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
             pkg-config
 
       - name: Configure
-        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug
+        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_STANDARD=23
 
       - name: Build
         run: cmake --build build

.github/workflows/release-checks.yml

@@ -29,7 +29,7 @@ jobs:
             valgrind
 
       - name: Configure debug build
-        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug
+        run: cmake -S . -B build -G Ninja -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_STANDARD=23
 
       - name: Build
         run: cmake --build build

AGENTS.md

@@ -8,6 +8,7 @@ agentic development.
 Baseline shape:
 
 - CMake is the only supported build system
+- C++23 is the baseline language standard
 - Out-of-tree builds are the default workflow
 - Repo-owned code should stay portable, local-first, and easy to validate
 - One small library target plus one CLI target form the default example shape

CMakeLists.txt

@@ -8,7 +8,7 @@ include(CTest)
 set(FRAME_LICENSE_INSTALL_DIR "${CMAKE_INSTALL_DATADIR}/licenses/${PROJECT_NAME}")
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
-set(CMAKE_CXX_STANDARD 20)
+set(CMAKE_CXX_STANDARD 23)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
@@ -30,7 +30,7 @@ add_library(project_core STATIC
 )
 
 target_include_directories(project_core PUBLIC ${CMAKE_CURRENT_SOURCE_DIR}/src)
-target_compile_features(project_core PUBLIC cxx_std_20)
+target_compile_features(project_core PUBLIC cxx_std_23)
 
 add_executable(frame_cli
     src/main.cpp

README.md

@@ -24,7 +24,7 @@ This frame is designed for projects that want:
 
 Defaults:
 
-- portable C++20 library + CLI example
+- portable C++23 library + CLI example
 - no Qt requirement by default
 - optional Qt/Clazy support as the example stack for projects that add a UI layer
 - MIT license

RELEASE_CHECKLIST.md

@@ -31,6 +31,9 @@ bash scripts/check-release-hygiene.sh
 bash scripts/run-release-checklist.sh
 ```
 
+- Confirm the build configuration still matches the repo baseline language
+  standard, which is C++23.
+
 - Configure a fresh out-of-tree build:
 
 ```bash