diff --git a/.github/bin/dist-github-release.sh b/.github/bin/dist-github-release.sh
index 16c794879d..430179cf02 100755
--- a/.github/bin/dist-github-release.sh
+++ b/.github/bin/dist-github-release.sh
@@ -16,6 +16,13 @@ elif [ "${GITHUB_REF:0:10}" != "refs/tags/" ]; then
 fi
 
 tag="${GITHUB_REF#refs/*/}"
+if [ ! -f obj/release_note.txt ]; then
+  {
+    echo "obj/release_note.txt file is missing."
+    echo "dist:release-note action must be run first."
+  } > /dev/stderr
+  exit 1
+fi
 
 if command -v apk; then
     apk add --no-cache ca-certificates
@@ -36,7 +43,7 @@ while ! "$(dirname "$0")/github-release.sh" info \
         --repo "$github_repo" \
         --tag "$tag" \
         --name "$tag" \
-        --description "" || true
+        --description - < obj/release_note.txt || true
     trial=$((trial + 1))
     if [[ "$trial" -gt 5 ]]; then break; fi
 done
diff --git a/.github/bin/dist-release-note.sh b/.github/bin/dist-release-note.sh
new file mode 100644
index 0000000000..e54d8bccd2
--- /dev/null
+++ b/.github/bin/dist-release-note.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+# Extract a release note from the given changelog file.
+# Note that this script is intended to be run by GitHub Actions.
+set -e
+
+if [ "$1" = "" ]; then
+  echo "A changelog file path is missing." > /dev/stderr
+  exit 1
+elif [ "$2" = "" ]; then
+  echo "An output path is missing." > /dev/stderr
+  exit 1
+fi
+
+tag="${GITHUB_REF#refs/*/}"
+wget -O /tmp/submark \
+  https://github.com/dahlia/submark/releases/download/0.2.0/submark-linux-x86_64
+chmod +x /tmp/submark
+/tmp/submark \
+  -o "$2" \
+  -iO \
+  --h2 "Version $tag" \
+  "$1"
+rm /tmp/submark
+
+if ! grep -E '\S' "$2" > /dev/null; then
+  echo "There is no section for the version $tag." > /dev/stderr
+  exit 1
+elif grep -i "to be released" "$2"; then
+  echo 'Release date should be shown on the release note.' > /dev/stderr
+  exit 1
+fi
diff --git a/.github/workflows/check-changelog.yml b/.github/workflows/check-changelog.yml
new file mode 100644
index 0000000000..0b5046d6da
--- /dev/null
+++ b/.github/workflows/check-changelog.yml
@@ -0,0 +1,15 @@
+name: check-changelog
+on:
+  pull_request:
+    types: [assigned, opened, synchronize, reopened, labeled, unlabeled]
+    branches:
+      - main
+      - development
+      - 'rc-*'
+jobs:
+  check-changelog:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: tarides/changelog-check-action@v2
+        with:
+          changelog: CHANGES.md
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index da7f3aabb8..4126367fb6 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -15,6 +15,11 @@ jobs:
       with:
         dotnet-version: 6.0.x
     - run: .github/bin/dist-pack.sh
+    - run: .github/bin/dist-release-note.sh CHANGES.md obj/release_note.txt
+    - uses: actions/upload-artifact@main
+      with:
+        name: dist-obj
+        path: obj/
     - run: .github/bin/dist-github-release.sh
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/CHANGES.md b/CHANGES.md
new file mode 100644
index 0000000000..4862ec9370
--- /dev/null
+++ b/CHANGES.md
@@ -0,0 +1,25 @@
+Lib9c changelog
+===============
+
+Version v200221
+---------------
+
+To be released.
+
+### Deprecated APIs
+
+### Backward-incompatible API changes
+
+### Backward-incompatible network protocol changes
+
+### Backward-incompatible storage format changes
+
+### Added APIs
+
+### Behavioral changes
+
+### Bug fixes
+
+### Dependencies
+
+### CLI tools