diff --git a/.gitea/workflows/release.yml b/.gitea/workflows/release.yml
index 7fd968d..f8b6d74 100644
--- a/.gitea/workflows/release.yml
+++ b/.gitea/workflows/release.yml
@@ -16,6 +16,8 @@ jobs:
     steps:
       - name: Checkout
         uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Setup Go
         uses: actions/setup-go@v5
@@ -25,6 +27,34 @@ jobs:
       - name: Build linux amd64 binary
         run: make build GOOS=linux GOARCH=amd64
 
+      - name: Generate release notes
+        id: release_notes
+        env:
+          TAG_NAME: ${{ github.ref_name }}
+        run: |
+          set -euo pipefail
+
+          if [ -z "${TAG_NAME}" ]; then
+            echo "missing tag name" >&2
+            exit 1
+          fi
+
+          previous_tag="$(git describe --tags --abbrev=0 "${TAG_NAME}^" 2>/dev/null || true)"
+
+          {
+            printf 'body<<EOF\n'
+
+            if [ -n "${previous_tag}" ]; then
+              printf '## Commits since %s\n\n' "${previous_tag}"
+              git log --reverse --pretty='- %h %s' "${previous_tag}..${TAG_NAME}"
+            else
+              printf '## Commits\n\n'
+              git log --reverse --pretty='- %h %s' "${TAG_NAME}"
+            fi
+
+            printf '\nEOF\n'
+          } >> "${GITHUB_OUTPUT}"
+
       - name: Create or fetch release
         id: release
         env:
@@ -32,6 +62,7 @@ jobs:
           REPOSITORY: ${{ github.repository }}
           API_URL: ${{ github.api_url }}
           GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          RELEASE_BODY: ${{ steps.release_notes.outputs.body }}
         run: |
           set -euo pipefail
 
@@ -44,6 +75,19 @@ jobs:
           repo="${REPOSITORY#*/}"
           release_url="${API_URL}/repos/${owner}/${repo}/releases/tags/${TAG_NAME}"
           create_url="${API_URL}/repos/${owner}/${repo}/releases"
+          payload="$(python3 - <<'PY'
+import json
+import os
+
+print(json.dumps({
+    "tag_name": os.environ["TAG_NAME"],
+    "name": os.environ["TAG_NAME"],
+    "body": os.environ["RELEASE_BODY"],
+    "prerelease": False,
+    "draft": False,
+}))
+PY
+          )"
 
           http_code="$(curl -sS -o release.json -w '%{http_code}' \
             -H "Authorization: token ${GITEA_TOKEN}" \
@@ -51,13 +95,22 @@ jobs:
             "${release_url}")"
 
           if [ "${http_code}" = "404" ]; then
-            payload="$(printf '{"tag_name":"%s","name":"%s","prerelease":false,"draft":false}' "${TAG_NAME}" "${TAG_NAME}")"
             http_code="$(curl -sS -o release.json -w '%{http_code}' \
               -X POST \
               -H "Authorization: token ${GITEA_TOKEN}" \
               -H "Content-Type: application/json" \
               -d "${payload}" \
               "${create_url}")"
+          elif [ "${http_code}" -ge 200 ] && [ "${http_code}" -lt 300 ]; then
+            release_id="$(python3 -c 'import json; print(json.load(open("release.json", "r", encoding="utf-8"))["id"])')"
+            update_url="${API_URL}/repos/${owner}/${repo}/releases/${release_id}"
+
+            http_code="$(curl -sS -o release.json -w '%{http_code}' \
+              -X PATCH \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              -H "Content-Type: application/json" \
+              -d "${payload}" \
+              "${update_url}")"
           fi
 
           if [ "${http_code}" -lt 200 ] || [ "${http_code}" -ge 300 ]; then