diff --git a/.github/workflows/prod-ci.yml b/.github/workflows/ci.yml
similarity index 85%
rename from .github/workflows/prod-ci.yml
rename to .github/workflows/ci.yml
index f215b66..d39288f 100644
--- a/.github/workflows/prod-ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,8 +1,9 @@
-name: prod-CI
+name: CI
 
 on:
   pull_request:
-    branches: [ "main" ]
+    branches:
+      - '*'
 
 jobs:
   build:
@@ -10,7 +11,7 @@ jobs:
 
     steps:
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: true
           token: ${{ secrets.SUBMODULE_TOKEN }}
diff --git a/.github/workflows/dev-ci.yml b/.github/workflows/dev-ci.yml
deleted file mode 100644
index b881487..0000000
--- a/.github/workflows/dev-ci.yml
+++ /dev/null
@@ -1,28 +0,0 @@
-name: develop-CI
-
-on:
-  pull_request:
-    branches: [ "develop" ]
-
-jobs:
-  build:
-    runs-on: ubuntu-22.04
-
-    steps:
-      - name: checkout
-        uses: actions/checkout@v3
-        with:
-          submodules: true
-          token: ${{ secrets.SUBMODULE_TOKEN }}
-
-      - name: Set up JDK 17
-        uses: actions/setup-java@v3
-        with:
-          distribution: 'corretto'
-          java-version: '17'
-
-      - name: build
-        run: |
-          chmod +x gradlew
-          ./gradlew build -x test
-        shell: bash
\ No newline at end of file
diff --git a/.github/workflows/prod-cd.yml b/.github/workflows/prod-cd.yml
index 14df26f..1fbab71 100644
--- a/.github/workflows/prod-cd.yml
+++ b/.github/workflows/prod-cd.yml
@@ -9,10 +9,9 @@ jobs:
     env:
       working-directory: .
 
-
     steps:
       - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           submodules: true
           token: ${{ secrets.SUBMODULE_TOKEN }}
@@ -60,3 +59,33 @@ jobs:
           script: |
             cd ~
             ./deploy.sh
+
+  create-release:
+    needs: cd
+    runs-on: ubuntu-22.04
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: 버전 정보 추출
+        id: extract_version_name
+        run: |
+          VERSION=$(echo "${{ github.event.head_commit.message }}" | egrep -o '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -n1 | tr -d '[:space:]')
+          
+          if [ -z "$VERSION" ]; then
+            echo "No version found in the commit message."
+            exit 1
+          fi         
+
+      - name: Create GitHub Release
+        run: |
+          response=$(curl -s -o /dev/null -w "%{http_code}" -X POST \
+          -H "Accept: application/vnd.github+json" \
+          -H "Authorization: Bearer ${{ secrets.SUBMODULE_TOKEN }}" \
+          https://api.github.com/repos/OMZigak/KKUMER/releases \
+          -d '{"tag_name":"${{ steps.extract_version_name.outputs.version }}","target_commitish":"main","name":"${{ steps.extract_version_name.outputs.version }}","generate_release_notes":true}')
+          
+          if [ "$response" -ne 201 ]; then
+            echo "GitHub Release failed with status code $response"
+            exit 1
+          fi
\ No newline at end of file
diff --git a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java b/src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java
index 03acbf7..939266c 100644
--- a/src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java
+++ b/src/main/java/org/kkumulkkum/server/service/meeting/MeetingService.java
@@ -4,6 +4,7 @@
 import lombok.extern.slf4j.Slf4j;
 import org.kkumulkkum.server.domain.Meeting;
 import org.kkumulkkum.server.domain.Member;
+import org.kkumulkkum.server.domain.Promise;
 import org.kkumulkkum.server.dto.meeting.MeetingMetCountDto;
 import org.kkumulkkum.server.dto.meeting.request.MeetingCreateDto;
 import org.kkumulkkum.server.dto.meeting.request.MeetingRegisterDto;
@@ -18,7 +19,9 @@
 import org.kkumulkkum.server.service.member.MemberRetreiver;
 import org.kkumulkkum.server.service.member.MemberSaver;
 import org.kkumulkkum.server.service.participant.ParticipantRemover;
+import org.kkumulkkum.server.service.participant.ParticipantRetriever;
 import org.kkumulkkum.server.service.promise.PromiseRemover;
+import org.kkumulkkum.server.service.promise.PromiseRetriever;
 import org.kkumulkkum.server.service.user.UserRetriever;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
@@ -41,6 +44,8 @@ public class MeetingService {
     private final MemberRemover memberRemover;
     private final PromiseRemover promiseRemover;
     private final MeetingRemover meetingRemover;
+    private final PromiseRetriever promiseRetriever;
+    private final ParticipantRetriever participantRetriever;
 
     @Transactional
     public CreatedMeetingDto createMeeting(
@@ -127,6 +132,9 @@ public void leaveMeeting(
             promiseRemover.deleteByMeetingId(meetingId);
             meetingRemover.deleteById(meetingId);
         }
+
+        //모임 내의 약속들 모두 돌려서, 거기서 참여자가 없는 약속이 있다면 지우기
+        removeEmptyPromises(meetingId);
     }
 
     private String generateInvitationCode() {
@@ -152,4 +160,10 @@ private String generateRandomCode() {
         return codeBuilder.toString();
     }
 
+    private void removeEmptyPromises(final Long meetingId) {
+        promiseRetriever.findAllByMeetingId(meetingId).stream()
+                .filter(promise -> participantRetriever.findAllByPromiseId(promise.getId()).isEmpty())
+                .forEach(promise -> promiseRemover.deleteById(promise.getId()));
+    }
+
 }
diff --git a/src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java b/src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java
index 43ff55b..3f42feb 100644
--- a/src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java
+++ b/src/main/java/org/kkumulkkum/server/service/promise/PromiseService.java
@@ -230,5 +230,4 @@ private void removeOldParticipants(
                         }).toList()
         );
     }
-
 }