sauloverissimo · sauloverissimo · May 9, 2026 · May 9, 2026 · May 9, 2026 · May 9, 2026
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Configure
-        run: cmake -B build -DMIDI2_CPP_BUILD_TESTS=ON
+        run: cmake -B build -DMIDI2CPP_BUILD_TESTS=ON
 
       - name: Build
         run: cmake --build build --parallel
@@ -43,7 +43,7 @@ jobs:
         env:
           CC: ${{ matrix.compiler.cc }}
           CXX: ${{ matrix.compiler.cxx }}
-        run: cmake -B build -DMIDI2_CPP_BUILD_TESTS=ON
+        run: cmake -B build -DMIDI2CPP_BUILD_TESTS=ON
 
       - name: Build with -Werror
         run: cmake --build build --parallel -- CXXFLAGS=-Werror CFLAGS=-Werror
@@ -122,10 +122,10 @@ jobs:
       - name: Symlink lib for arduino-cli sketch resolution
         run: |
           mkdir -p ~/Arduino/libraries
-          ln -s "$GITHUB_WORKSPACE" ~/Arduino/libraries/midi2_cpp
+          ln -s "$GITHUB_WORKSPACE" ~/Arduino/libraries/midi2cpp
 
       - name: Install midi2 dependency from Library Manager
-        # midi2_cpp depends on midi2 (>=0.3.3) but arduino-cli does not
+        # midi2cpp depends on midi2 (>=0.3.4) but arduino-cli does not
         # walk depends= entries automatically. Install it explicitly.
         # Falls back to the GitHub git URL if the registry index has
         # not propagated yet (Library Manager indexes within 24h of a
@@ -134,7 +134,7 @@ jobs:
           arduino-cli lib update-index
           arduino-cli lib install midi2 || \
             (arduino-cli config set library.enable_unsafe_install true && \
-             arduino-cli lib install --git-url https://github.com/sauloverissimo/midi2.git#v0.3.3)
+             arduino-cli lib install --git-url https://github.com/sauloverissimo/midi2.git#v0.3.4)
 
       - name: Compile Arduino sketches (skip non-sketch dirs)
         run: |

diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,13 +1,50 @@
 # Changelog
 
-All notable changes to `midi2_cpp` are recorded here. Format follows
+All notable changes to `midi2cpp` are recorded here. Format follows
 [Keep a Changelog](https://keepachangelog.com/en/1.1.0/) and this project
 adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 mirrored from the upstream midi2 C99 policy.
 
+## [0.3.0]
+
+Renamed from `midi2_cpp` to `midi2cpp` in deference to [`starfishmod/MIDI2_CPP`](https://github.com/starfishmod/MIDI2_CPP) (maintained since 2021 by Andrew Mee, MIDI Association TSB Rep), which operates in the same domain. Keeping the namespaces disjoint avoids confusion in package managers and search.
+
+This is a **breaking** rename. Every consumer-facing identifier moved:
+
+### Breaking
+
+- **Repository:** `github.com/sauloverissimo/midi2_cpp` -> `github.com/sauloverissimo/midi2cpp` (the old URL redirects on the GitHub side, but new code should pin the new name).
+- **Header:** `<midi2_cpp.h>` -> `<midi2cpp.h>`. `using namespace midi2;` is unchanged; the C++ API surface (`m2device`, `m2host`, `m2bridge`, `m2ci`, `Bridge`, `Device`, ...) is unchanged.
+- **CMake target:** `midi2_cpp` -> `midi2cpp`; alias `midi2_cpp::midi2_cpp` -> `midi2cpp::midi2cpp`. `target_link_libraries(... midi2cpp)` replaces `... midi2_cpp`.
+- **Preprocessor macros:** `MIDI2_CPP_*` -> `MIDI2CPP_*` (`MIDI2CPP_BUILD_TESTS`, `MIDI2CPP_MAX_PROFILES`, `MIDI2CPP_MAX_PROPERTIES`, `MIDI2CPP_MAX_SUBSCRIBERS`, `MIDI2CPP_HOST_MAX_DEVICES`, `MIDI2CPP_BRIDGE_MAX_SLOTS`).
+- **Manifests:** `library.properties` `name=midi2cpp`, `library.json` `"name": "midi2cpp"`. The Arduino Library Manager and the PlatformIO Registry treat the rename as a new entry; the previous `midi2_cpp` listings will be retired in a follow-up PR to `arduino/library-registry`.
+
+### Changed
+
+- **Dependency on midi2 bumped to v0.3.4** across every install path (Arduino LM `depends=midi2 (>=0.3.4)`, PlatformIO `^0.3.4`, ESP-IDF `version: "v0.3.4"`, CMake `find_package(midi2 0.3.4 CONFIG)` + `FetchContent_Declare(... GIT_TAG v0.3.4)`). midi2 v0.3.4 fixes the ESP-IDF Component Manager gate (`dist/` filtered from the dependency tarball); without it, ESP-IDF recipes failed configure.
+
+### Migration
+
+```diff
+-#include <midi2_cpp.h>
++#include <midi2cpp.h>
+```
+
+CMake:
+```diff
+-FetchContent_Declare(midi2_cpp ...)
+-target_link_libraries(my_target PRIVATE midi2_cpp)
++FetchContent_Declare(midi2cpp ...)
++target_link_libraries(my_target PRIVATE midi2cpp)
+```
+
+Arduino Library Manager: search `midi2cpp` (the previous `midi2_cpp` entry will be removed once the registry PR lands).
+
+PlatformIO: `lib_deps = sauloverissimo/midi2cpp @ ^0.3.0`.
+
 ## [0.2.0]
 
-Single source of truth for the MIDI 2.0 stack: midi2_cpp no longer
+Single source of truth for the MIDI 2.0 stack: midi2cpp no longer
 vendors the C99 core and is published as a regular Arduino /
 PlatformIO library that depends on midi2 explicitly. Every recipe
 under `examples/` was migrated to pull midi2 externally through the
@@ -16,23 +53,23 @@ native CMake, IDF Component Manager for ESP-IDF, lib_deps for
 PlatformIO).
 
 This is a breaking release. Consumers that previously vendored
-`midi2_cpp/src/midi2.{h,c}` directly will break; the migration path
+`midi2cpp/src/midi2.{h,c}` directly will break; the migration path
 is documented in the manifest below and in the per-build-system
 patterns shipped under `examples/`.
 
 ### Breaking
 
-- **Vendored `src/midi2.{h,c}` removed.** midi2_cpp now declares
+- **Vendored `src/midi2.{h,c}` removed.** midi2cpp now declares
   midi2 as an external dependency:
-  - `library.properties` carries `depends=midi2 (>=0.3.3)`. Arduino
+  - `library.properties` carries `depends=midi2 (>=0.3.4)`. Arduino
     Library Manager auto-installs midi2 when a sketch includes
-    midi2_cpp.
+    midi2cpp.
   - `library.json` carries `dependencies."sauloverissimo/midi2":
-    "^0.3.3"`. PlatformIO resolves midi2 from its registry.
+    "^0.3.4"`. PlatformIO resolves midi2 from its registry.
   - The root `CMakeLists.txt` exposes a three-layer fallback at the
-    top (`if(NOT TARGET midi2)` -> `find_package(midi2 0.3.3 CONFIG)`
-    -> `FetchContent_Declare(midi2 GIT_TAG v0.3.3)`), then links
-    midi2_cpp `PUBLIC midi2::midi2` so downstream targets see the
+    top (`if(NOT TARGET midi2)` -> `find_package(midi2 0.3.4 CONFIG)`
+    -> `FetchContent_Declare(midi2 GIT_TAG v0.3.4)`), then links
+    midi2cpp `PUBLIC midi2::midi2` so downstream targets see the
     C99 core transitively.
 
 ### Added
@@ -56,23 +93,23 @@ patterns shipped under `examples/`.
 - **CMake entry surface for downstream consumers**: the root
   `CMakeLists.txt` follows the same `find_package` -> `FetchContent`
   fallback pattern that midi2 itself ships. Subprojects pulling
-  midi2_cpp via `add_subdirectory` or `FetchContent` skip the
+  midi2cpp via `add_subdirectory` or `FetchContent` skip the
   `find_package` step (`if(NOT TARGET midi2)` guard).
 
 ### Changed
 
-- **README tagline** drops the `zero-allocation` claim. midi2_cpp
+- **README tagline** drops the `zero-allocation` claim. midi2cpp
   allocates in two narrow places (`m2bridge::begin()` slot tables and
   `std::function` callback storage), so the wrapper is now described
   as `static-by-default`. The C99 core (midi2) remains strictly
   zero-allocation. Same shift applied to the logo and to the
   `.intern/decisoes.md` design heritage notes.
 - **README "Manual vendor" path** rewritten: pre-v0.2 builds vendored
-  a single `midi2_cpp/src/midi2.{h,c}` copy; today the consumer
+  a single `midi2cpp/src/midi2.{h,c}` copy; today the consumer
   downloads both repositories side by side and adds `midi2/dist/`
-  plus `midi2_cpp/src/` to its include path.
+  plus `midi2cpp/src/` to its include path.
 - **`paragraph` in `library.properties`** rewritten: drops
-  comparisons with other libraries, focuses on what midi2_cpp itself
+  comparisons with other libraries, focuses on what midi2cpp itself
   ships and the embedded targets validated.
 
 ### Examples / Recipes
@@ -81,16 +118,16 @@ patterns shipped under `examples/`.
 
 | Build system | Mechanism | Recipes |
 |---|---|---|
-| Pico SDK | `FetchContent_Declare(midi2 GIT_TAG v0.3.3)` plus `target_link_libraries(midi2_cpp PUBLIC midi2::midi2)` | `rp2040-midi2`, `waveshare-rp2040-midi2`, `sparkfun-promicro-rp2350-midi2`, `waveshare-rp2350-usb-a-midi2`, `waveshare-rp2350-usb-a-bridge-midi2`, `adafruit-feather-rp2040-host-midi2`, `adafruit-feather-rp2040-bridge-midi2`, `rp2040-promicro-ump-test-bench` |
+| Pico SDK | `FetchContent_Declare(midi2 GIT_TAG v0.3.4)` plus `target_link_libraries(midi2cpp PUBLIC midi2::midi2)` | `rp2040-midi2`, `waveshare-rp2040-midi2`, `sparkfun-promicro-rp2350-midi2`, `waveshare-rp2350-usb-a-midi2`, `waveshare-rp2350-usb-a-bridge-midi2`, `adafruit-feather-rp2040-host-midi2`, `adafruit-feather-rp2040-bridge-midi2`, `rp2040-promicro-ump-test-bench` |
 | TinyUSB native CMake | same FetchContent pattern as Pico SDK | `xiao-samd21-midi2`, `nrf52840-promicro-midi2` |
-| ESP-IDF | `idf_component.yml` declares `midi2: { git: ..., version: ">=0.3.3" }` and `idf_component_register` lists `midi2` in `REQUIRES` | `arduino-nano-esp32-midi2`, `esp32-s3-devkitc-usb-midi2`, `esp32-p4-devkit-usb-midi2`, `esp32-p4-devkit-host-midi2`, `esp32-p4-devkit-bridge-midi2`, `esp32-p4-devkit-bridge2-midi2`, `t-display-s3-midi2` |
-| PlatformIO + ESP32_Host_MIDI | `lib_deps += sauloverissimo/midi2 @ ^0.3.3` | `esp32-c6-devkitc-multi-midi2`, `esp32-s3-devkitc-host-midi2`, `t-display-s3-shield-host-midi2` |
+| ESP-IDF | `idf_component.yml` declares `midi2: { git: ..., version: ">=0.3.4" }` and `idf_component_register` lists `midi2` in `REQUIRES` | `arduino-nano-esp32-midi2`, `esp32-s3-devkitc-usb-midi2`, `esp32-p4-devkit-usb-midi2`, `esp32-p4-devkit-host-midi2`, `esp32-p4-devkit-bridge-midi2`, `esp32-p4-devkit-bridge2-midi2`, `t-display-s3-midi2` |
+| PlatformIO + ESP32_Host_MIDI | `lib_deps += sauloverissimo/midi2 @ ^0.3.4` | `esp32-c6-devkitc-multi-midi2`, `esp32-s3-devkitc-host-midi2`, `t-display-s3-shield-host-midi2` |
 
-Each recipe drops the `${MIDI2_CPP_ROOT}/src/midi2.c` (or `midi2_c99`
-helper library) from its source list. Other midi2_cpp sources
+Each recipe drops the `${MIDI2CPP_ROOT}/src/midi2.c` (or `midi2_c99`
+helper library) from its source list. Other midi2cpp sources
 (`midi2_device.cpp`, `midi2_ci.cpp`, `midi2_host.cpp`,
 `midi2_bridge.cpp`) keep being compiled inline from the parent tree
-via `${MIDI2_CPP_ROOT}/src` until the host helper-library shape is
+via `${MIDI2CPP_ROOT}/src` until the host helper-library shape is
 finalised in a future cycle.
 
 #### New recipes since v0.1.0
@@ -178,16 +215,16 @@ library (vendored stb-style at `src/midi2.{h,c}` from v0.3.0+).
 - Profile (M2-101 §7): `addProfile`, `removeProfile`, callbacks for
   `onProfileInquiry`, `onProfileEnable`, `onProfileDisable`,
   `onProfileAdded`, `onProfileRemoved`, `onProfileDetailsInquiry`,
-  `onProfileSpecificData`. Storage tunable via `MIDI2_CPP_MAX_PROFILES`
+  `onProfileSpecificData`. Storage tunable via `MIDI2CPP_MAX_PROFILES`
   (default 8).
 - Property Exchange (M2-101 §8, M2-103, M2-105):
   - Registry: `addProperty(name, getter, setter=nullptr)` (read-only by
     default), `addPropertyStatic(name, value)`, `removeProperty`.
-    Storage tunable via `MIDI2_CPP_MAX_PROPERTIES` (default 8).
+    Storage tunable via `MIDI2CPP_MAX_PROPERTIES` (default 8).
   - Subscribe / Notify state machine:
     `setPropertySubscribable(name, true)`, `notifyPropertyChanged(name)`
     for fan-out, `subscriberCount()`. Subscriber registry tunable via
-    `MIDI2_CPP_MAX_SUBSCRIBERS` (default 4).
+    `MIDI2CPP_MAX_SUBSCRIBERS` (default 4).
   - PE callbacks deliver raw bytes (header + body) instead of
     NUL-terminated strings, to avoid silent truncation of large JSON
     payloads.
@@ -196,7 +233,7 @@ library (vendored stb-style at `src/midi2.{h,c}` from v0.3.0+).
 
 ### `midi2::Host` — USB MIDI 2.0 host shape
 
-- Reactive multi-device host (`MIDI2_CPP_HOST_MAX_DEVICES`, default 4).
+- Reactive multi-device host (`MIDI2CPP_HOST_MAX_DEVICES`, default 4).
   Caller wires `tuh_midi2_*` (or platform-equivalent) into
   `notifyDeviceMounted/Unmounted`, `feedRx(idx, words, count)` and
   `setWriteFn(idx, words, count)`.
@@ -261,14 +298,14 @@ library (vendored stb-style at `src/midi2.{h,c}` from v0.3.0+).
   platform-conditional RNG `#if` chain from `midi2_ci.cpp`. The library
   no longer pulls `<Arduino.h>`, `pico/time.h`, `esp_timer.h`, or any
   USB stack header.
-- Removed the `MIDI2_CPP_TEST_MODE` build option. Tests now consume the
+- Removed the `MIDI2CPP_TEST_MODE` build option. Tests now consume the
   same public hooks platforms wire. One contract, one code path.
 - `Device::begin()` no longer claims to call `tusb_init` internally. It
   initialises the library's own dispatcher and returns; the caller owns
   the platform USB stack lifecycle.
 - `Device::task()` drops the commented `tud_task` stubs.
 - C++17 floor enforced via `static_assert(__cplusplus >= 201703L)` in
-  `midi2_cpp.h`.
+  `midi2cpp.h`.
 - `lib/tinyusb` git submodule and the `.gitmodules` entry removed. The
   library has zero external dependencies: midi2 C99 stays vendored,
   every USB stack and clock and RNG source is caller-wired. `git clone`

diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.14)
-project(midi2_cpp VERSION 0.2.0 LANGUAGES C CXX)
+project(midi2cpp VERSION 0.3.0 LANGUAGES C CXX)
 
 set(CMAKE_C_STANDARD 99)
 set(CMAKE_C_STANDARD_REQUIRED ON)
@@ -11,59 +11,59 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 # Three-layer fallback: parent project's target -> system install
 # (vcpkg / conan / system package) -> FetchContent from GitHub.
 # This is the same pattern the midi2 README documents for downstream
-# consumers, applied to midi2_cpp itself.
+# consumers, applied to midi2cpp itself.
 if(NOT TARGET midi2)
-    find_package(midi2 0.3.3 QUIET CONFIG)
+    find_package(midi2 0.3.4 QUIET CONFIG)
     if(NOT midi2_FOUND)
         include(FetchContent)
         FetchContent_Declare(midi2
             GIT_REPOSITORY https://github.com/sauloverissimo/midi2.git
-            GIT_TAG        v0.3.3
+            GIT_TAG        v0.3.4
         )
         FetchContent_MakeAvailable(midi2)
     endif()
 endif()
 
 # Library target.
 #
-# midi2_cpp ships the C++ wrapper sources only; the C99 core lives in
+# midi2cpp ships the C++ wrapper sources only; the C99 core lives in
 # the external midi2 target this CMakeLists pulls above. Consumers
-# linking midi2_cpp transitively see midi2::midi2 because of the
+# linking midi2cpp transitively see midi2::midi2 because of the
 # PUBLIC link below.
-add_library(midi2_cpp
+add_library(midi2cpp
     src/midi2_device.cpp
     src/midi2_ci.cpp
     src/midi2_host.cpp
     src/midi2_bridge.cpp
 )
 
-target_link_libraries(midi2_cpp PUBLIC midi2::midi2)
+target_link_libraries(midi2cpp PUBLIC midi2::midi2)
 
-target_include_directories(midi2_cpp
+target_include_directories(midi2cpp
     PUBLIC
         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
         $<INSTALL_INTERFACE:include>
 )
 
 # Warnings
 if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
-    target_compile_options(midi2_cpp PRIVATE
+    target_compile_options(midi2cpp PRIVATE
         -Wall -Wextra -Wpedantic
         -Wno-unused-parameter   # spec uses many unused params in stubs
     )
 endif()
 
-# Exportable alias for consumers: midi2_cpp::midi2_cpp
-add_library(midi2_cpp::midi2_cpp ALIAS midi2_cpp)
+# Exportable alias for consumers: midi2cpp::midi2cpp
+add_library(midi2cpp::midi2cpp ALIAS midi2cpp)
 
 # Tests: build only if this is the top-level project or tests explicitly requested
 if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
-    set(MIDI2_CPP_BUILD_TESTS_DEFAULT ON)
+    set(MIDI2CPP_BUILD_TESTS_DEFAULT ON)
 else()
-    set(MIDI2_CPP_BUILD_TESTS_DEFAULT OFF)
+    set(MIDI2CPP_BUILD_TESTS_DEFAULT OFF)
 endif()
-option(MIDI2_CPP_BUILD_TESTS "Build host-side unit tests" ${MIDI2_CPP_BUILD_TESTS_DEFAULT})
-if(MIDI2_CPP_BUILD_TESTS AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt")
+option(MIDI2CPP_BUILD_TESTS "Build host-side unit tests" ${MIDI2CPP_BUILD_TESTS_DEFAULT})
+if(MIDI2CPP_BUILD_TESTS AND EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/tests/CMakeLists.txt")
     # Tests use the same public hooks the platforms wire (setWriteFn,
     # setNowFn, feedRx). No special test mode — the contract is the contract.
     enable_testing()