diff --git a/.github/workflows/check_n_push_image.yml b/.github/workflows/check_n_push_image.yml
index 528bc5e..6776319 100644
--- a/.github/workflows/check_n_push_image.yml
+++ b/.github/workflows/check_n_push_image.yml
@@ -47,6 +47,11 @@ jobs:
         run: |
           echo "ACCESS_TOKEN=${ACCESS_TOKEN}" > .env
 
+      - name: Provides release environment variable if created new tag.
+        if: ${{ startsWith(github.event.ref, 'refs/tags/v') }}
+        run: |
+          echo "IS_DEVELOPED=0" >> .env
+
       - name: Get current util version
         id: get_version
         run: |
@@ -54,6 +59,7 @@ jobs:
 
       - name: Create main docker image, run tests and save image for the next job
         run: |
+          export $(cat .env | xargs)
           make docker-image DOCKER_TAG=${{ secrets.DOCKER_HUB_USERNAME }}/codeplag-ubuntu20.04:${{ steps.get_version.outputs.version }}
           docker image save --output /tmp/codeplag-ubuntu20.04.tar ${{ secrets.DOCKER_HUB_USERNAME }}/codeplag-ubuntu20.04:${{ steps.get_version.outputs.version }}
 
diff --git a/Makefile b/Makefile
index c349f4b..3dfdc1e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-UTIL_VERSION            := 0.2.9
+UTIL_VERSION            := 0.3.0
 UTIL_NAME               := codeplag
 PWD                     := $(shell pwd)
 
@@ -13,6 +13,7 @@ CODEPLAG_LOG_PATH       := $(LOGS_PATH)/$(UTIL_NAME).log
 CONFIG_PATH             := /etc/$(UTIL_NAME)/settings.conf
 
 SOURCE_SUB_FILES        := src/$(UTIL_NAME)/consts.py
+IS_DEVELOPED            ?= 1
 DEBIAN_SUB_FILES        := debian/changelog \
                            debian/control \
                            debian/preinst \
@@ -23,10 +24,17 @@ DOCKER_SUB_FILES        := docker/base_ubuntu2004.dockerfile \
 
 PYTHON_REQUIRED_LIBS    := $(shell python3 setup.py --install-requirements)
 
+
+ifeq ($(IS_DEVELOPED), 1)
+DEVEL_SUFFIX            := .devel
+endif
+
+
 substitute = @sed \
 		-e "s|@UTIL_NAME@|${UTIL_NAME}|g" \
 		-e "s|@UTIL_VERSION@|${UTIL_VERSION}|g" \
 		-e "s|@CODEPLAG_LOG_PATH@|${CODEPLAG_LOG_PATH}|g" \
+		-e "s|@DEVEL_SUFFIX@|${DEVEL_SUFFIX}|g" \
 		-e "s|@PYTHON_REQUIRED_LIBS@|${PYTHON_REQUIRED_LIBS}|g" \
 		-e "s|@LOGS_PATH@|${LOGS_PATH}|g" \
 		-e "s|@CONFIG_PATH@|${CONFIG_PATH}|g" \
@@ -160,6 +168,7 @@ docker-autotest: docker-test-image
 docker-build-package: docker-test-image
 	docker run --rm \
 		--volume $(PWD)/debian/deb:/usr/src/$(UTIL_NAME)/debian/deb \
+		--env IS_DEVELOPED=$(IS_DEVELOPED) \
 		"$(TEST_DOCKER_TAG)" bash -c \
 		"make package"
 
diff --git a/debian/changelog.in b/debian/changelog.in
index 82a5e1f..847ef80 100644
--- a/debian/changelog.in
+++ b/debian/changelog.in
@@ -1 +1 @@
-@UTIL_NAME@-util (@UTIL_VERSION@-1.devel) stable; urgency=medium
+@UTIL_NAME@-util (@UTIL_VERSION@-1@DEVEL_SUFFIX@) stable; urgency=medium
diff --git a/debian/rules b/debian/rules
index 0a26e3f..38801f8 100755
--- a/debian/rules
+++ b/debian/rules
@@ -10,9 +10,9 @@ override_dh_builddeb:
 	dh_builddeb --destdir=$(DESTDIR)
 
 override_dh_usrlocal:
-	echo "Skipping this step"
+	echo "Skipping dh_usrlocal ..."
 
 override_dh_auto_test:
-	echo "Skipping this step"
+	echo "Skipping dh_auto_test ..."
 
 .EXPORT_ALL_VARIABLES:
diff --git a/docker/ubuntu2004.dockerfile.in b/docker/ubuntu2004.dockerfile.in
index 1635c68..68c6699 100644
--- a/docker/ubuntu2004.dockerfile.in
+++ b/docker/ubuntu2004.dockerfile.in
@@ -1,7 +1,7 @@
 FROM @UTIL_NAME@-base-ubuntu20.04:@UTIL_VERSION@
 
 ADD debian/deb/ /usr/src/@UTIL_NAME@/debian/deb
-RUN apt-get install -y /usr/src/@UTIL_NAME@/debian/deb/@UTIL_NAME@-util_@UTIL_VERSION@-1.devel_amd64.deb
+RUN apt-get install -y /usr/src/@UTIL_NAME@/debian/deb/@UTIL_NAME@-util_@UTIL_VERSION@-1@DEVEL_SUFFIX@_amd64.deb
 # TODO: Fix this hook. apt-get don't install manpage into image.
 RUN cp debian/deb/usr/share/man/man1/@UTIL_NAME@.1 /usr/share/man/man1/