Feature/45 timing 2.2.3 dependency refresh

.github/workflows/dependency-refresh-tests.yml

@@ -0,0 +1,69 @@
+name: Dependency Refresh Tests
+
+on:
+  push:
+    branches:
+      - feature/45-timing-2.2.3-dependency-refresh
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  esp32-compile:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          path: project/ESPressio-Threads
+      - uses: actions/checkout@v4
+        with:
+          repository: Flowduino/ESPressio-Timing
+          ref: 2.2.3
+          path: project/dependencies/ESPressio-Timing
+      - uses: actions/checkout@v4
+        with:
+          repository: Flowduino/ESPressio-Units
+          ref: 0.2.2
+          path: project/dependencies/ESPressio-Units
+      - uses: actions/checkout@v4
+        with:
+          repository: Flowduino/ESPressio-Observable
+          ref: 3.0.1
+          path: project/dependencies/ESPressio-Observable
+      - uses: actions/setup-python@v5
+        with:
+          python-version: '3.x'
+      - name: Install PlatformIO
+        run: pip install platformio
+      - name: Create consumer project
+        shell: bash
+        run: |
+          mkdir -p project/compile/src
+          cat > project/compile/platformio.ini <<'EOF'
+          [env:esp32]
+          platform = espressif32
+          board = esp32dev
+          framework = arduino
+          build_flags =
+              -std=gnu++17
+              -frtti
+          build_unflags =
+              -std=gnu++11
+              -fno-rtti
+          lib_ldf_mode = deep+
+          lib_deps =
+              ../dependencies/ESPressio-Observable
+              ../dependencies/ESPressio-Units
+              ../dependencies/ESPressio-Timing
+              ../ESPressio-Threads
+          EOF
+          cat > project/compile/src/main.cpp <<'EOF'
+          #include <Arduino.h>
+          #include <ESPressio_Thread.hpp>
+          #include <ESPressio_PrecisionThread.hpp>
+
+          void setup() {}
+          void loop() {}
+          EOF
+      - name: Compile Threads against released Timing 2.2.3
+        run: pio run -d project/compile

CHANGELOG.md

@@ -12,7 +12,20 @@ Versioning](https://semver.org/).
 > had little or no release-note detail, the entry is intentionally terse
 > rather than inferring unsupported intent.
 
-## \[3.1.2\] - 2026-08-20
+## [3.1.3] - 2026-08-20
+
+### Changed
+
+- Raised the required ESPressio Timing baseline from 2.2.2 to 2.2.3, carrying the Units 0.2.2 / Serializable 0.10.1 dependency refresh downstream.
+- Preserved the direct ESPressio Observable baseline at `>=3.0.1 <4.0.0`.
+- Updated package and ESP-IDF component version metadata for Threads 3.1.3.
+- Preserved the dependency direction `Threads -> Timing -> Units -> optional Serializable`; Threads does not acquire a direct Serializable dependency.
+
+### Compatibility
+
+- No public Threads interfaces or runtime semantics changed.
+
+## [3.1.2] - 2026-08-20
 
 ### Changed
 
@@ -21,7 +34,7 @@ Versioning](https://semver.org/).
 -   Updated package and ESP-IDF component version metadata for Threads 3.1.2.
 -   No public Threads interfaces or runtime semantics changed.
 
-## \[3.1.1\] - 2026-08-19
+## [3.1.1] - 2026-08-19
 
 ### Changed
 
@@ -30,7 +43,7 @@ Versioning](https://semver.org/).
 -   Bounded ESPressio Observable compatibility to the current 3.x major line (`>=3.0.0 <4.0.0`).
 -   Updated package metadata and current installation/dependency guidance for Threads 3.1.1.
 
-## \[3.1.0\] - 2026-08-19
+## [3.1.0] - 2026-08-19
 
 ### Added
 
@@ -53,7 +66,7 @@ Versioning](https://semver.org/).
 -   Kept the notification layer synchronous and independent of ESPressio
     Event so Event bridges can remain opt-in.
 
-## \[3.0.0\] - 2026-08-18
+## [3.0.0] - 2026-08-18
 
 ### Added
 
@@ -77,7 +90,7 @@ Versioning](https://semver.org/).
 -   Corrected integration issues found while validating the 3.0 codebase
     against the newest ESPressio dependencies.
 
-## \[2.0.0\] - 2026-08-13
+## [2.0.0] - 2026-08-13
 
 ### Changed
 
@@ -92,34 +105,34 @@ Versioning](https://semver.org/).
     window is changed or disabled.
 -   Clarified process-lifetime Thread infrastructure ownership.
 
-## \[1.4.1\]
+## [1.4.1]
 
 ### Fixed
 
 -   Maintenance corrections to the 1.4 series.
 
-## \[1.3.0\]
+## [1.3.0]
 
 ### Added
 
 -   Expanded the Thread/PrecisionThread feature set and lifecycle
     infrastructure.
 
-## \[1.2.0\]
+## [1.2.0]
 
 ### Added
 
 -   Continued development of precision-threading and
     lifecycle-management capabilities.
 
-## \[1.1.0\]
+## [1.1.0]
 
 ### Added
 
 -   Extended the initial Thread abstraction with additional
     lifecycle/scheduling functionality.
 
-## \[1.0.0\]
+## [1.0.0]
 
 ### Added