diff --git a/.github/workflows/api-misskey-js.yml b/.github/workflows/api-misskey-js.yml
index d0018ffcf..7b8a1ce12 100644
--- a/.github/workflows/api-misskey-js.yml
+++ b/.github/workflows/api-misskey-js.yml
@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v3.6.0
 
       - run: corepack enable
 
diff --git a/.github/workflows/check_copyright_year.yml b/.github/workflows/check_copyright_year.yml
index 174b6ab25..e06e33b39 100644
--- a/.github/workflows/check_copyright_year.yml
+++ b/.github/workflows/check_copyright_year.yml
@@ -10,7 +10,7 @@ jobs:
   check_copyright_year:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
     - run: |
         if [ "$(grep Copyright COPYING | sed -e 's/.*2014-\([0-9]*\) .*/\1/g')" -ne "$(date +%Y)" ]; then
           echo "Please change copyright year!"
diff --git a/.github/workflows/docker-develop.yml b/.github/workflows/docker-develop.yml
index 98163dda1..295ab028b 100644
--- a/.github/workflows/docker-develop.yml
+++ b/.github/workflows/docker-develop.yml
@@ -13,7 +13,7 @@ jobs:
     if: github.repository == 'laoxong/misskey'
     steps:
       - name: Check out the repo
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v3.6.0
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v2.9.1
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 5211931e7..dd039c37c 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Check out the repo
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v3.6.0
       - name: Set up Docker Buildx
         id: buildx
         uses: docker/setup-buildx-action@v2.9.1
diff --git a/.github/workflows/dockle.yml b/.github/workflows/dockle.yml
index 02dbef35d..4e90b4fc3 100644
--- a/.github/workflows/dockle.yml
+++ b/.github/workflows/dockle.yml
@@ -14,7 +14,7 @@ jobs:
     env:
       DOCKER_CONTENT_TRUST: 1
     steps:
-      - uses: actions/checkout@v3.5.3
+      - uses: actions/checkout@v3.6.0
       - run: |
           curl -L -o dockle.deb "https://github.com/goodwithtech/dockle/releases/download/v0.4.10/dockle_0.4.10_Linux-64bit.deb"
           sudo dpkg -i dockle.deb
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index d3ea13c12..ae40a274a 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -11,7 +11,7 @@ jobs:
   pnpm_install:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         fetch-depth: 0
         submodules: true
@@ -38,7 +38,7 @@ jobs:
         - sw
         - misskey-js
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         fetch-depth: 0
         submodules: true
@@ -64,7 +64,7 @@ jobs:
         - backend
         - misskey-js
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         fetch-depth: 0
         submodules: true
diff --git a/.github/workflows/pr-preview-deploy.yml b/.github/workflows/pr-preview-deploy.yml
index fd1417b65..7980b7383 100644
--- a/.github/workflows/pr-preview-deploy.yml
+++ b/.github/workflows/pr-preview-deploy.yml
@@ -53,7 +53,7 @@ jobs:
 
     # Check out merge commit
     - name: Fork based /deploy checkout
-      uses: actions/checkout@v3.5.3
+      uses: actions/checkout@v3.6.0
       with:
         ref: 'refs/pull/${{ github.event.client_payload.pull_request.number }}/merge'
 
diff --git a/.github/workflows/reviewer_lottery.yml b/.github/workflows/reviewer_lottery.yml
index f8f7d2253..f281e6c3a 100644
--- a/.github/workflows/reviewer_lottery.yml
+++ b/.github/workflows/reviewer_lottery.yml
@@ -7,7 +7,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
     - uses: uesteibar/reviewer-lottery@v3
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/.github/workflows/storybook.yml b/.github/workflows/storybook.yml
index b068041f3..8ab6d204b 100644
--- a/.github/workflows/storybook.yml
+++ b/.github/workflows/storybook.yml
@@ -15,12 +15,12 @@ jobs:
       NODE_OPTIONS: "--max_old_space_size=7168"
 
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       if: github.event_name != 'pull_request_target'
       with:
         fetch-depth: 0
         submodules: true
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       if: github.event_name == 'pull_request_target'
       with:
         fetch-depth: 0
diff --git a/.github/workflows/test-backend.yml b/.github/workflows/test-backend.yml
index f0a152731..1d9e61343 100644
--- a/.github/workflows/test-backend.yml
+++ b/.github/workflows/test-backend.yml
@@ -29,7 +29,7 @@ jobs:
           - 56312:6379
 
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         submodules: true
     - name: Install pnpm
diff --git a/.github/workflows/test-frontend.yml b/.github/workflows/test-frontend.yml
index 46a35ed84..0a7f954fd 100644
--- a/.github/workflows/test-frontend.yml
+++ b/.github/workflows/test-frontend.yml
@@ -16,7 +16,7 @@ jobs:
         node-version: [20.x]
 
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         submodules: true
     - name: Install pnpm
@@ -68,7 +68,7 @@ jobs:
           - 56312:6379
 
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         submodules: true
     # https://github.com/cypress-io/cypress-docker-images/issues/150
diff --git a/.github/workflows/test-misskey-js.yml b/.github/workflows/test-misskey-js.yml
index bd9c21f5e..a3be6216e 100644
--- a/.github/workflows/test-misskey-js.yml
+++ b/.github/workflows/test-misskey-js.yml
@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3.5.3
+        uses: actions/checkout@v3.6.0
 
       - run: corepack enable
 
diff --git a/.github/workflows/test-production.yml b/.github/workflows/test-production.yml
index 5be24f83e..07a33ac35 100644
--- a/.github/workflows/test-production.yml
+++ b/.github/workflows/test-production.yml
@@ -19,7 +19,7 @@ jobs:
         node-version: [20.x]
 
     steps:
-    - uses: actions/checkout@v3.5.3
+    - uses: actions/checkout@v3.6.0
       with:
         submodules: true
     - name: Install pnpm
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 62bc11cd9..e81fecf35 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -301,6 +301,12 @@ export const handlers = [
 Don't forget to re-run the `.storybook/generate.js` script after adding, editing, or removing the above files.
 
 ## Notes
+
+### Misskeyのドメイン固有の概念は`Mi`をprefixする
+例えばGoogleが自社サービスをMap、Earth、DriveではなくGoogle Map、Google Earth、Google Driveのように命名するのと同じ
+コード上でMisskeyのドメイン固有の概念には`Mi`をprefixすることで、他のドメインの同様の概念と区別できるほか、名前の衝突を防ぐ。
+ただし、文脈上Misskeyのものを指すことが明らかであり、名前の衝突の恐れがない場合は、一時的なローカル変数に限って`Mi`を省略してもよい。
+
 ### How to resolve conflictions occurred at pnpm-lock.yaml?
 
 Just execute `pnpm` to fix it.