diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7be51c8b5..1e6f45a51 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+### 0.21.3
+
+- escape html in 'shared files by Circles'
+
 
 ### 0.21.2
 
diff --git a/Makefile b/Makefile
index aa3c7f5d3..97abc4baf 100644
--- a/Makefile
+++ b/Makefile
@@ -1,34 +1,69 @@
-app_name=circles
+app_name=Circles
 
 build_dir=$(CURDIR)/build/artifacts
 appstore_dir=$(build_dir)/appstore
 source_dir=$(build_dir)/source
 sign_dir=$(build_dir)/sign
-package_name=$(app_name)
+package_name=$(shell echo $(app_name) | tr '[:upper:]' '[:lower:]')
 cert_dir=$(HOME)/.nextcloud/certificates
 github_account=nextcloud
+release_account=nextcloud-releases
 branch=stable21
-version+=0.21.2
+version=0.21.3
+since_tag=
 
 all: appstore
 
 release: appstore github-release github-upload
 
 github-release:
+	if [ -z "$(release_account)" ]; then \
+		release_account=$(github_account); \
+		release_branch=$(branch); \
+	else \
+		release_account=$(release_account); \
+		release_branch=master; \
+	fi; \
+	if [ -z "$(since_tag)" ]; then \
+		latest_tag=$$(git describe --tags `git rev-list --tags --max-count=1`); \
+	else \
+		latest_tag=$(since_tag); \
+	fi; \
+	comparison="$$latest_tag..HEAD"; \
+	if [ -z "$$latest_tag" ]; then comparison=""; fi; \
+	changelog=$$(git log $$comparison --oneline --no-merges | sed -e 's/^/$(github_account)\/$(package_name)@/'); \
 	github-release release \
-		--user $(github_account) \
-		--repo $(app_name) \
-		--target $(branch) \
-		--tag v$(version) \
-		--name "$(app_name) v$(version)"
+		--user $$release_account \
+		--repo $(package_name) \
+		--target $$release_branch \
+		--tag $(version) \
+		--description "**Changelog**<br/>$$changelog" \
+		--name "$(app_name) v$(version)"; \
+	if [ $(github_account) != $$release_account ]; then \
+	        link="https://github.com/$$release_account/$(package_name)/releases/download/$(version)/$(package_name)-$(version).tar.gz";\
+		github-release release \
+			--user $(github_account) \
+			--repo $(package_name) \
+			--target $(branch) \
+			--tag $(version) \
+			--description "**Download**<br />$$link<br /><br />**Changelog**<br/>$$changelog<br />" \
+			--name "$(app_name) v$(version)"; \
+	fi; \
+
 
 github-upload:
+	if [ -z "$(release_account)" ]; then \
+		release_account=$(github_account); \
+	else \
+		release_account=$(release_account); \
+	fi; \
 	github-release upload \
-		--user $(github_account) \
-		--repo $(app_name) \
-		--tag v$(version) \
-		--name "$(app_name)-$(version).tar.gz" \
-		--file $(build_dir)/$(app_name)-$(version).tar.gz
+		--user $$release_account \
+		--repo $(package_name) \
+		--tag $(version) \
+		--name "$(package_name)-$(version).tar.gz" \
+		--file $(build_dir)/$(package_name)-$(version).tar.gz
+
 
 clean:
 	rm -rf $(build_dir)
@@ -37,6 +72,7 @@ clean:
 # composer packages
 composer:
 	composer install --prefer-dist
+	composer upgrade --prefer-dist
 
 appstore: clean composer
 	mkdir -p $(sign_dir)
@@ -53,16 +89,17 @@ appstore: clean composer
 	--exclude=/issue_template.md \
 	--exclude=/README.md \
 	--exclude=/composer.json \
+	--exclude=/testConfiguration.json \
 	--exclude=/composer.lock \
 	--exclude=/.gitattributes \
 	--exclude=/.gitignore \
 	--exclude=/.scrutinizer.yml \
 	--exclude=/.travis.yml \
 	--exclude=/Makefile \
-	./ $(sign_dir)/$(app_name)
-	tar -czf $(build_dir)/$(app_name)-$(version).tar.gz \
-		-C $(sign_dir) $(app_name)
-	@if [ -f $(cert_dir)/$(app_name).key ]; then \
+	./ $(sign_dir)/$(package_name)
+	tar -czf $(build_dir)/$(package_name)-$(version).tar.gz \
+		-C $(sign_dir) $(package_name)
+	@if [ -f $(cert_dir)/$(package_name).key ]; then \
 		echo "Signing package…"; \
-		openssl dgst -sha512 -sign $(cert_dir)/$(app_name).key $(build_dir)/$(app_name)-$(version).tar.gz | openssl base64; \
+		openssl dgst -sha512 -sign $(cert_dir)/$(package_name).key $(build_dir)/$(package_name)-$(version).tar.gz | openssl base64; \
 	fi
diff --git a/appinfo/info.xml b/appinfo/info.xml
index 151018145..8408285ec 100644
--- a/appinfo/info.xml
+++ b/appinfo/info.xml
@@ -23,7 +23,7 @@ Users won't be able to find this Circle using Nextcloud search engine.
 
 		]]>
 	</description>
-	<version>0.21.2</version>
+	<version>0.21.3</version>
 	<licence>agpl</licence>
 	<author>Maxence Lange</author>
 	<types>