chore(release): 5.0.0-preview.20 [skip ci]

# [5.0.0-preview.20](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.19...5.0.0-preview.20) (2026-06-29)

### Bug Fixes

* support "disable domain reload" on Unity 6.6 or later ([dc12088](dc120884f6))

.github/workflows/test-urp.yml

@@ -7,9 +7,9 @@ run-name: 🧪 Test URP (${{ github.event.pull_request.title || github.ref_name
 
 env:
   # MINIMUM_VERSION: The minimum version of Unity.
-  MINIMUM_VERSION: 6000.1
+  MINIMUM_VERSION: 6000.0
   # EXCLUDE_FILTER: The excluded versions of Unity.
-  EXCLUDE_FILTER: '(2020.2.0|2021.1|2023.3)'
+  EXCLUDE_FILTER: "(2017|2018|2023.3)"
   PROJECT_PATH: ParticleEffectForUGUI_URP
 
 on:
@@ -85,10 +85,10 @@ jobs:
         unityVersion: ${{ fromJson(needs.setup.outputs.unityVersions) }}
     steps:
       - name: 🚚 Checkout ($${{ github.ref }})
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: 📥 Cache library
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ env.PROJECT_PATH }}/Library
           key: ${{ env.PROJECT_PATH }}-Library-${{ matrix.unityVersion }}-${{ github.event.pull_request.head.sha || github.sha }}
@@ -97,7 +97,7 @@ jobs:
             ${{ env.PROJECT_PATH }}-Library-
 
       - name: 🛠️ Build Unity Project (Test)
-        uses: game-ci/unity-builder@v5
+        uses: game-ci/unity-builder@main
         timeout-minutes: 45
         with:
           customImage: ghcr.io/mob-sakai/unity3d:${{ matrix.unityVersion }}
@@ -111,7 +111,7 @@ jobs:
           UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
 
       # - name: 🧪 Run tests
-      #   uses: game-ci/unity-test-runner@v4
+      #   uses: game-ci/unity-test-runner@main
       #   timeout-minutes: 45
       #   with:
       #     customImage: ghcr.io/mob-sakai/unity3d:${{ matrix.unityVersion }}

.github/workflows/test.yml

@@ -7,7 +7,7 @@ run-name: 🧪 Test (${{ github.event.pull_request.title || github.ref_name }})
 
 env:
   # MINIMUM_VERSION: The minimum version of Unity.
-  MINIMUM_VERSION: 2020.3
+  MINIMUM_VERSION: 2019.4
   # EXCLUDE_FILTER: The excluded versions of Unity.
   EXCLUDE_FILTER: "(2017|2018|2023.3)"
   PROJECT_PATH: .
@@ -45,7 +45,8 @@ jobs:
     steps:
       - name: 🔑 Secrets check
         run: |
-          if [ -z "$UNITY_EMAIL" ] || [ -z "$UNITY_PASSWORD" ] || [ -z "UNITY_LICENSE" ]; then
+          echo "Checking secrets for ${{ github.actor }} ..."
+          if [ -z "$UNITY_EMAIL" ] || [ -z "$UNITY_PASSWORD" ] || [ -z "$UNITY_LICENSE" ]; then
             echo "Error: UNITY_EMAIL, UNITY_PASSWORD, and UNITY_LICENSE secrets must be set." | tee -a $GITHUB_STEP_SUMMARY >&2
             echo "Error: See https://game.ci/docs/github/test-runner#basic-setup" | tee -a $GITHUB_STEP_SUMMARY >&2
             echo "Error: Set the secrets at ${{ github.server_url }}/${{ github.repository }}/settings/secrets/actions" | tee -a $GITHUB_STEP_SUMMARY >&2
@@ -84,10 +85,10 @@ jobs:
         unityVersion: ${{ fromJson(needs.setup.outputs.unityVersions) }}
     steps:
       - name: 🚚 Checkout ($${{ github.ref }})
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: 📥 Cache library
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ${{ env.PROJECT_PATH }}/Library
           key: ${{ env.PROJECT_PATH }}-Library-${{ matrix.unityVersion }}-${{ github.event.pull_request.head.sha || github.sha }}
@@ -96,7 +97,7 @@ jobs:
             ${{ env.PROJECT_PATH }}-Library-
 
       - name: 🛠️ Build Unity Project (Test)
-        uses: game-ci/unity-builder@v5
+        uses: game-ci/unity-builder@main
         timeout-minutes: 45
         with:
           customImage: ghcr.io/mob-sakai/unity3d:${{ matrix.unityVersion }}
@@ -110,7 +111,7 @@ jobs:
           UNITY_LICENSE: ${{ secrets.UNITY_LICENSE }}
 
       - name: 🧪 Run tests
-        uses: game-ci/unity-test-runner@v4
+        uses: game-ci/unity-test-runner@main
         timeout-minutes: 45
         with:
           customImage: ghcr.io/mob-sakai/unity3d:${{ matrix.unityVersion }}

Packages/src/CHANGELOG.md

@@ -1,3 +1,10 @@
+# [5.0.0-preview.20](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.19...5.0.0-preview.20) (2026-06-29)
+
+
+### Bug Fixes
+
+* support "disable domain reload" on Unity 6.6 or later ([dc12088](https://github.com/mob-sakai/ParticleEffectForUGUI/commit/dc120884f68a5fee1775d039fc7bca0ee0e404b5))
+
 # [5.0.0-preview.19](https://github.com/mob-sakai/ParticleEffectForUGUI/compare/5.0.0-preview.18...5.0.0-preview.19) (2026-06-28)
 
 

Packages/src/Runtime/Internal/ProjectSettings/PreloadedProjectSettings.cs

@@ -59,21 +59,6 @@ namespace Coffee.UIParticleInternal
                 s_BuildingPlayer = false;
                 Initialize();
             }
-
-#if UNITY_2019_3_OR_NEWER
-            [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
-            private static void OnDomainReload()
-            {
-                foreach (var t in TypeCache.GetTypesDerivedFrom(typeof(PreloadedProjectSettings<>)))
-                {
-                    var defaultSettings = GetDefaultSettings(t);
-                    if (defaultSettings != null)
-                    {
-                        defaultSettings.OnDomainReload();
-                    }
-                }
-            }
-#endif
         }
 
         private static void Initialize()
@@ -166,10 +151,6 @@ namespace Coffee.UIParticleInternal
         protected virtual void OnInitialize()
         {
         }
-
-        protected virtual void OnDomainReload()
-        {
-        }
     }
 
     internal abstract class PreloadedProjectSettingsEditor : Editor
@@ -255,11 +236,6 @@ namespace Coffee.UIParticleInternal
                     break;
             }
         }
-
-        protected override void OnDomainReload()
-        {
-            s_Instance = null;
-        }
 #else
         public static T instance => s_Instance != null ? s_Instance : s_Instance = CreateInstance<T>();
 #endif

Packages/src/Runtime/Internal/Utilities/FrameCache.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using UnityEditor;
 using UnityEngine;
 
 namespace Coffee.UIParticleInternal
@@ -9,6 +10,7 @@ namespace Coffee.UIParticleInternal
         private static readonly Dictionary<Type, IFrameCache> s_Caches = new Dictionary<Type, IFrameCache>();
 
 #if UNITY_EDITOR && UNITY_2019_3_OR_NEWER
+        [InitializeOnLoadMethod]
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
 #elif UNITY_EDITOR
         [InitializeOnLoadMethod]

Packages/src/Runtime/Internal/Utilities/UIExtraCallbacks.cs

@@ -18,12 +18,6 @@ namespace Coffee.UIParticleInternal
         private static readonly FastAction s_OnScreenSizeChangedAction = new FastAction();
         private static Vector2Int s_LastScreenSize;
 
-        static UIExtraCallbacks()
-        {
-            Canvas.willRenderCanvases += OnBeforeCanvasRebuild;
-            Logger.LogMulticast(typeof(Canvas), "willRenderCanvases", message: "ctor");
-        }
-
         /// <summary>
         /// Event that occurs after canvas rebuilds.
         /// </summary>
@@ -72,7 +66,7 @@ namespace Coffee.UIParticleInternal
             CanvasUpdateRegistry.IsRebuildingLayout();
 #if TMP_ENABLE
             // Explicitly set `Canvas.willRenderCanvases += TMP_UpdateManager.DoRebuilds`.
-            typeof(TMPro.TMP_UpdateManager)
+            var _ = typeof(TMPro.TMP_UpdateManager)
                 .GetProperty("instance", BindingFlags.NonPublic | BindingFlags.Static)
                 .GetValue(null);
 #endif
@@ -83,6 +77,7 @@ namespace Coffee.UIParticleInternal
         }
 
 #if UNITY_EDITOR && UNITY_2019_3_OR_NEWER
+        [InitializeOnLoadMethod]
         [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.SubsystemRegistration)]
 #elif UNITY_EDITOR
         [InitializeOnLoadMethod]
@@ -91,9 +86,17 @@ namespace Coffee.UIParticleInternal
 #endif
         private static void InitializeOnLoad()
         {
+#if UNITY_2019_4 || UNITY_2020_2_OR_NEWER
+            Canvas.preWillRenderCanvases -= OnBeforeCanvasRebuild;
+            Canvas.preWillRenderCanvases += OnBeforeCanvasRebuild;
+#else
+            Canvas.willRenderCanvases -= OnBeforeCanvasRebuild;
+            Canvas.willRenderCanvases += OnBeforeCanvasRebuild;
+#endif
             Canvas.willRenderCanvases -= OnAfterCanvasRebuild;
             s_IsInitializedAfterCanvasRebuild = false;
             s_LastScreenSize = default;
+            Logger.LogMulticast(typeof(Canvas), "willRenderCanvases", message: "ctor");
         }
 
         /// <summary>

Packages/src/package.json

@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-particle",
   "displayName": "UI Particle",
   "description": "This package provides a component to render particle effects for uGUI.\nThe particle rendering is maskable and sortable, without the need for an extra Camera, RenderTexture, or Canvas.",
-  "version": "5.0.0-preview.19",
+  "version": "5.0.0-preview.20",
   "unity": "2019.3",
   "license": "MIT",
   "repository": {